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Executive Leadership

Mark Nantz, MHA

President and Chief Executive Officer, Valley Health

Photo of Mark NantzMark Nantz is president and chief executive officer of Valley Health System, a not-for-profit network of hospitals, services and providers based in Winchester, Virginia.

Prior to joining Valley Health, Nantz served in executive roles with Bon Secours Mercy Health, including most recently as chief administrative officer and Atlantic Group President; before then, he was executive vice president and chief strategy officer at Bon Secours. He has also held executive positions at Carolinas Healthcare System (now Atrium Health) and Carolinas Medical Center ‐ NorthEast, and leadership roles in the audit practice of a Big 5 accounting firm. He is a Certified Public Accountant and a fellow in the American College of Healthcare Executives.

Nantz is a visionary executive with a record of improving patient satisfaction, quality metrics, and physician and employee engagement. During his 30-plus year tenure in health care, his professional accomplishments include building advanced clinical programs and successful physician and community partnerships, and instituting organizational effectiveness and strategic business plans at the local, regional, and system levels.

Nantz earned a Master of Health Administration from Pfieffer University, and a Bachelor of Science in Accounting from the University of North Carolina ‐ Charlotte. An engaged community leader, he has volunteered in leadership roles with numerous non‐profit and civic organizations, including chambers of commerce, the American Heart Association, the March of Dimes, and organizations supporting the fine arts. He and his wife, Courtenay, reside in Winchester.

James Burton, MEd
Chief Information Officer, Valley Health

James Burton James Burton is chief information officer (CIO) for Valley Health System and a member of the Executive Management Team. He led the EpicCare double upgrade in May 2015, as well as our transition to ICD-10, and oversees the implementation of technologies to advance patient care, clinical activities, population health efforts, employee support and communication.

Prior to joining Valley Health, Burton served as a consultant to Texas Health Resources, a non-profit health system in north Texas, working on a wide range of projects. He was vice president/CIO at East Jefferson General Hospital in Louisiana, and managed a large IT team as vice president of operations at Montefiore Health System in New York, NY.

Burton earned a Master of Education, with a focus on management, from Cambridge College in Cambridge, Mass.

Peter Gallagher, MBA
Chief Financial Officer, Valley Health

Peter GallagherPeter F. Gallagher, chief financial officer for Valley Health System, joined the team in 2014.

Gallagher began his career with Coopers & Lybrand in Cincinnati, and has served in financial leadership at Health Corporation of Virginia, The Johns Hopkins Hospital in Baltimore, Scioto Valley Health Foundation in Portsmouth, Ohio, and Bon Secours Virginia. His experience includes work as president and CEO at a healthcare advisory firm with expertise in finance, interim financial leadership, sales training, expert testimony, business development, and new product and service development.

Gallagher has been honored with the Mid-Career Award from the Catholic Health Association of the United States, and the Founder’s Medal of Honor from the Healthcare Financial Management Association. He has been involved in volunteer leadership positions with the American Red Cross, Catholic Consortium for International Healthcare and other healthcare nonprofits.

Gallagher graduated from Miami University in Ohio with a bachelor’s degree in accountancy, and earned a Master of Business Administration from Xavier University in Cincinnati. He is licensed as a Certified Public Accountant in Virginia, and is a Fellow of the Healthcare Financial Management Association.

Thomas S. Kluge, MHSA
Senior Vice President, Valley Health Critical Access Hospitals, and Vice President, War and Hampshire Memorial Hospitals

Tom KlugeThomas S. Kluge is senior vice president of Valley Health’s Critical Access Hospitals (in Virginia: Page Memorial Hospital and Shenandoah Memorial Hospital; in West Virginia: Hampshire Memorial Hospital and War Memorial Hospital).

Kluge provides strategic leadership and oversight of the operations of the four critical access facilities and serves on Valley Health’s senior management team. Working with the Board and hospital leadership teams, he is responsible for the growth, development, financial performance, talent management and employee engagement. He also oversees physician recruitment and relations, development of clinical and service programs, and patient safety, quality and process improvement initiatives.

Kluge has more than 30 years of experience in hospital administration in Virginia and Georgia. He was chief operating officer at Sentara Halifax Regional Hospital in South Boston, Va., from 1989 until May 2016, and has worked on Certificate of Public Need, construction, information technology upgrades, service line development and capital projects.

Kluge earned a Master of Health Services Administration and Bachelor Science degree from the Medical College of Virginia/Virginia Commonwealth University (VCU).

Grady W. (Skip) Philips, III, MBA, MHA
Senior Vice President, Valley Health Acute Care Hospitals, and President, Winchester Medical Center

Grady W. Skip Philips, IIIGrady W. (Skip) Philips, III, serves as senior vice president of Valley Health Acute Care Hospitals, which includes oversight of Warren Memorial Hospital and Winchester Medical Center, and as President of Winchester Medical Center. He joined the Valley Health team in 2013 with experience as a corporate officer, chief executive, and administrator of healthcare facilities providing a continuum of services from acute care to rehabilitation and retirement communities. Philips has a strong track record of operational skill, financial acumen, positive physician relations and community involvement.

Philips began his career with Riverside Health System (VA) as an administrative resident with his last role as senior vice president and COO, and he worked in various executive roles during his 20 year tenure with Riverside. He also served as administrator, COO and CEO at Houston Healthcare in Warner Robins, GA. Prior to joining Valley Health, Philips was the CEO for LifePoint Hospitals’ Memorial Hospital of Martinsville and Henry County (VA).

Philips is passionate about being part of the ministry of Healthcare and making the community healthier through people and relationships. During his career, he has served in numerous community, church, civic and business organizations, including United Way, Chamber of Commerce, Rotary, Healthy Families, Virginia Association of Free Clinics and local Free Clinic boards, Healthy Workforce, and arts and education. Throughout his community involvement and service, he has focused on connecting the work of the healthcare team with the community.

Philips graduated from Emory University in Atlanta, with bachelor’s degrees in Chemistry and History, and earned a Master of Business Administration and a Masters of Healthcare Administration from Georgia State University, also in Atlanta. He is a fellow in the American College of Healthcare Executives.

Chris Rucker, MHA
Chief Strategy Officer and Chief of Staff, Valley Health

Chris RuckerChris Rucker serves as chief strategy officer and chief of staff for Valley Health. Rucker is responsible for leading the development and execution of Valley Health’s strategy, operational planning and business development. In addition, he leads brand and creative strategy, overseeing marketing and communications, physician relations, and public relations in support of the organization’s mission and strategic growth objectives.

As President of Valley Regional Enterprises, an operating subsidiary of Valley Health, Rucker focuses on the organization’s retail, consumer focus, and ease of access initiatives and is the healthcare system’s executive responsible for Urgent Care and Employer Health services, outpatient pharmacy, medical transport service, home health, certain physician joint venture activities, and is the organization’s lead emissary to regions without a Valley Health Hospital presence.

Rucker’s previous experience includes executive roles in emergency services and outsourced safety, logistics, and medical transportation, where his responsibilities encompassed operations, strategy, business development, marketing, and governmental relations for markets spanning multiple states in the southern US.

A former paramedic firefighter, Rucker has a bachelor’s degree in Business Administration and a Master’s in Health Administration. He is active in the American College of Healthcare Executives and the Society for Healthcare Strategy and Market Development. A lifelong community volunteer, examples of Rucker’s service in community and non-profit organizations include the United Way, Our Health, the Red Cross, Bright Futures, the Winchester Fire and Rescue Foundation, various chambers of commerce, and the Boy Scouts of America. As a visible and engaged member of the community, Rucker excels in convening stakeholders and aligning diverse interests for the shared purpose of improving the community’s health.

Iyad Sabbagh, MD, MBA
Chief Physician Executive and President, Valley Physician Enterprise

Iyad Sabbagh, MD, MBAIyad Sabbagh, MD, MBA, is chief physician executive and president of Valley Physician Enterprise. Dr. Sabbagh has over 13 years of senior healthcare management experience within multi-hospital systems. Most recently, he served as vice president, chief quality officer, and associate chief medical officer for Northern Light Health, a nine-hospital, not-for-profit health system in Maine with over 10,000 employees, a 690-member employed physician group, and nine long-term care and residential facilities

Dr. Sabbagh earned his medical degree from the University of Damascus, School of Medicine in Syria and completed a residency in Internal Medicine at Mercy Hospital and Medical Center, University of Illinois in Chicago. He earned a Master of Business Administration from the University of Massachusetts at Amherst and is a Certified Physician Executive (CPE). He is a diplomate of the American Board of Internal Medicine and a Fellow of the American College of Physicians.

Elizabeth Savage, MS
Chief Human Resources Officer, Valley Health

Elizabeth SavageElizabeth (Liz) Savage, chief human resources officer (CHRO), joined Valley Health in 2010, and serves on the health system’s executive management team.

She has more than 25 years of experience in human resources and organizational development at for-profit and not-for-profit organizations. Prior to joining Valley Health, Savage served the healthcare community as senior vice president, Human Resources, at Bon Secours Charity Health System in the Hudson Valley region of New York. Prior to that, she led workplace improvement efforts at GE Capital, Norbert Technologies, and Hyperion Software.

Savage received her Master of Science in organization development from American University/National Training Laboratory in Washington, D.C., and her undergraduate degree in business administration from the State University of New York at Albany. In addition, she has earned Lean and Myers-Briggs Type Indicator certifications. She is a member of the Society of Human Resource Management and American Society for Healthcare Human Resource Administration. She serves on the Discovery Museum Board in Winchester, and actively works in the community to develop career paths into healthcare.

Theresa L. Trivette, DNP, RN, CENP

Chief Nursing Executive (CNE), Valley Health

Dr. TrivettTheresa L. Trivette, DNP, RN, CENP, joined Valley Health as its Chief Nursing Executive (CNE) in October 2021. She serves on the Executive Leadership Team and is responsible for leadership of all nursing functions across Valley Health.

Dr. Trivette has over 20 years of experience as a nurse. Since 2009, she has served in senior healthcare management positions, including chief nursing officer at Ballad Health in Tennessee, and at Advent Health in Tampa, Florida; associate vice president/chief patient safety officer at Advent Health in Tampa; and director of quality assessment and performance improvement at Wake Forest Baptist Health in North Carolina. In these positions, she improved nurse engagement, professional development and retention and led initiatives focused on quality, mortality, readmission, hospital-acquired infection, patient outcomes and patient satisfaction.

Trivette earned a Doctor of Nursing Practice from the Medical University of South Carolina; a Master of Science in Nursing from Gardner-Webb University; a Bachelor of Science in Management Studies/Healthcare from University of Maryland University College; and an Associate of Science in Nursing from the College of Southern Maryland. She is a member of the American College of Healthcare Executives and the American Organization of Nurse Leaders. She is a Certified Lean Six Sigma Black Belt (CLSSBB), the highest level of proficiency for collaborative method of process improvement and organizational change.

Senior Management

Bob Amos

Vice President Finance, Winchester Medical Center and Warren Memorial Hospital

Bob AmosRobert M. “Bob” Amos is vice president of finance for Winchester Medical Center and Warren Memorial Hospital.

Amos joined Valley Health in 2005 and has 20 years of diverse healthcare experience. Previous employment includes Jefferson Memorial Hospital, The Hospital for Sick Children, The Daughters of Charity, Ascension Health Care, Fairmont General Hospital, and Genesis Health System.

He is a member of the Healthcare Financial Management Association.

Amos earned his bachelor’s degree in accounting from Fairmont State University, and his Master in Business Administration from West Virginia University. He became a West Virginia Certified Public Accountant in 1993.

Mark Baker
Vice President, Facilities Management and Safety, Valley Health

Mark BakerMark Baker is vice president, Facilities Management and Safety, for Valley Health. He is responsible for clinical engineering, construction services, engineering, safety and emergency management and security.

Baker joined Valley Health in 1994 as a facilities engineer and within four years was promoted to director. He has directed the design, construction and occupancy of more than $700 million in projects including replacement facilities for Hampshire Memorial Hospital, Page Memorial Hospital and War Memorial Hospital; the Winchester Medical Center north tower expansion; and the new emergency department and medical building at Shenandoah Memorial Hospital. He has also implemented clinical engineering, construction, and energy management programs, resulting in considerable cost savings.

Baker earned his bachelor’s degree in industrial engineering technology from the University of Maryland.

Amanda Buckles-Barash, MS, PMP

Vice President, Medical Group Finance

AmandaAmanda Buckles-Barash, MS, PMP, joined Valley Health as the vice president of Medical Group Finance in August 2021. Buckles-Barash has over 10 years of finance and healthcare management experience. Prior to joining Valley Health, she was director of finance for Indiana University Health West Central Region. While there, she served as director of finance for three hospitals and a multispecialty physician group. Buckles-Barash also led development of business plans and proposals to establish new clinical services, evaluated staffing needs, and maximized revenue opportunities for the region.

Buckles-Barash has expertise in analyzing and reporting on complex financial systems and developing financial and operational models and projections. She earned her Master of Science in Technology, Leadership & Innovation from Purdue University and has a Bachelor of Science in accounting from Indiana Wesleyan University. She also earned a certificate of Entrepreneurship/Entrepreneurial Studies from Harvard Business School.

Portia Brown
Vice President, Page Memorial Hospital

Portia BrownPortia C. Brown is vice president of Page Memorial Hospital and is responsible for daily hospital and ambulatory clinic operations.

She has been with Valley Health for 18 years, and has more than 33 years of healthcare administration experience.

Prior to this position Brown was director of Quality and Regulatory Affairs and Risk Management for the Page Memorial Hospital senior management team, where she developed initiatives to improve patient care and improve performance and regulatory compliance.

Brown is a Fellow in the American College of Healthcare Executives and a Fellow of the National Rural Health Association. She has been a co-presenter at various Lean conferences in the northeast and mid-Atlantic United States.

In 2019, Brown was elected to serve a two-year term as president of the Virginia Rural Health Association. The VRHA is a non-profit association that advocates for improved health care on behalf of the 2.5 million Virginians living in rural areas throughout the Commonwealth.

She has a Bachelor of Science in Medical Technology and Laboratory Technology from Auburn University, and received her Master of Science in Health Administration from Medical College of Virginia/Virginia Commonwealth University.

N. Travis Clark
Vice President, Valley Health; President, Shenandoah Memorial Hospital and Page Memorial Hospital

N. Travis ClarkN. Travis Clark is a Valley Health vice president, and president of Page Memorial Hospital and Shenandoah Memorial Hospital.

Clark began his career at Page Memorial Hospital in 1997 as the Director of Rural Health Clinics. In 2000 he was promoted to Chief Financial Officer, a position he held for five years before his promotion in 2005 to President of Page Memorial Hospital. In 2016, Travis was promoted to vice president of operations for Valley Health Southern Region, and president of Page Memorial Hospital and Shenandoah Memorial Hospital.

Clark has a bachelor’s degree in Business Administration and a Master’s in Organizational Leadership. He is a member of the Virginia Hospital & Healthcare Association’s HosPAC Board of Directors and a board member of the Page County Broadband Authority.

A Page County native, Travis enjoys spending time with family and promoting conservation efforts on his family’s beef cattle farm.

Jennifer Coello, MHA
Vice President, Operations and Administrator, Warren Memorial Hospital

Photo of Jennifer CoelloJennifer Coello, MHA, is vice president, Operations and Administrator for Warren Memorial Hospital, and brings rich healthcare experience, including work at a national health quality association, a regional health planning agency, and in the management of hospitals in Virginia, Georgia, and Ohio. She most recently served as Administrator for East Ohio Regional Hospital where during her tenure, the hospital grew it's clinical service lines, achieved a significant decrease in its overall readmission rate, and attained the 2019 Patient Safety Excellence Award by Healthgrades.

As WMH Vice President Operations & Administrator, Coello will be a key member of the Valley Health System Acute Care executive and senior leadership teams, and will work to positively impact employee and provider engagement, patient experience, and clinical program growth and outcomes at Valley Health’s newest hospital.

Coello is a graduate of the University of Virginia with a BA in psychology, and earned a Master of Health Administration from Virginia Commonwealth University. She is board certified in healthcare management by the American College of Healthcare Executives (ACHE) and was the recipient of the 2013 ACHE Regent's Award. Coello is community-minded, having served on the boards of Chambers of Commerce, Kiwanis, and other local health and arts organizations.

Carla Dallmann, BSN, MBA, MJ, CPHRM, CPCO
Vice President, Risk Management, Valley Health

Carla DallmanCarla Dallmann, BSN, MBA, MJ, CPHRM, CPCO, is the Valley Health vice president of Risk Management, using her rich background in nursing and risk management, patient safety, and health law. In addition to supporting system-wide performance improvement and patient safety initiatives, she facilitates the system-wide Patient and Family Advisory Council to ensure we benefit from patient and family perspectives in all of our initiatives.

Dallman received her Bachelors of Science in Nursing at University of Wisconsin and her Masters of Business Administration at Averett University. She also earned her Masters in Healthcare Law at Loyola School of Law and Certificate in Healthcare Corporate Compliance at George Washington University.

Jeffrey Feit, MD, MS
Valley Health Population Health and Community Health Officer

Jeffrey Feit, MDJeffrey M. Feit, MD, MS, serves as Valley Health population health and community health officer. He collaborates with community partners to advance region-wide health and wellness efforts. Dr. Feit joined the System administrative team in 2012, following six years as vice president of Medical Affairs at Page Memorial Hospital (PMH), where he championed initiatives in performance improvement, Lean engineering and the electronic medical record.

He previously practiced family medicine in Luray and Fairfax, Va., and has held appointments on the faculty of VCU and UVA departments of Family Medicine.

Dr. Feit earned his medical degree and completed a residency in family medicine at the UVA School of Medicine. He has a bachelor’s degree in International Affairs and Public Policy from Princeton University and a Master’s of Science in Health Care Administration from Virginia Commonwealth University.

Tammy Gasper
Vice President, Shenandoah Memorial Hospital; Southern Region Medical Staff Services & Clinical Program Development

Tammy GasperTammy L. Gasper is vice president of Shenandoah Memorial Hospital, and Southern Region Medical Staff Services & Clinic Program Development. She has been with Valley Health for 22 years in various positions, including Corporate Director of Laboratory, Respiratory, Sleep Medicine and Imaging and, most recent, Vice President of Medical Staff Affairs and Clinical Program Development for Valley Health, Southern Region.

Gasper is responsible for providing administrative leadership, support and oversight for the medical staffs at Page Memorial Hospital, Shenandoah Memorial Hospital and Warren Memorial Hospital. She is also responsible for the assessment, planning, implementation and evaluation of clinical services and programs in the southern region.

A native of Page County, Gasper holds a Bachelor of Science in Medical Technology and a Masters in Healthcare Administration. She is a member of the American College of Healthcare Executives and the American Society for Clinical Pathology.

Phillip Graybeal
Vice President and Chief Financial Officer, Valley Health Southern Region

Phillip GraybealPhillip Graybeal is the vice president and chief financial officer of Valley Health Southern Region, with responsibility for the overall financial operations.

Phillip has over 15 years of experience with the majority being healthcare related. Phillip was an Accounting Manager for Smith/Packett Med-Com of Roanoke VA. He also worked in public accounting for Goodman & Company in Roanoke, VA where he worked with several rural hospitals in Virginia and West Virginia. The scope of the services he provided included reimbursement consulting, auditing, tax, accounting and review services. He has a BBA from Radford University, and is a Certified Public Accountant. Phillip is currently working on his Masters of Business Administration with a concentration in Health Services Administration at Eastern Mennonite University.

Phillip is married with three boys and enjoys spending time with his family. He is an avid sports fan who coaches little league baseball, midget football, and plays the occasional round of golf.

Christine Lowman, CPA, CHFP
Vice President Finance and Corporate Controller, Valley Health

Photo of Christine LowmanChristine Lowman is vice president of finance and corporate controller for Valley Health. She joined Valley Health in 1998 in the Internal Audit Department. She has served in her current role since January 2015. Prior to her current role, Christine was the Vice President and CFO for the West Region for seven years, which includes both Hampshire and War Memorial Hospitals. She has 24 years of financial accounting and auditing experience with 22 of those years spent in the healthcare industry.

Christine earned a Master of Business Administration and Bachelor of Science in Accounting from Frostburg State University, in Maryland. She is also a Certified Public Accountant and maintains active licensure in both Virginia and Maryland, and is an alumnus of the Advisory Board Fellowship Program. She is a member of several associations, including the American Institute of Certified Public Accountants (AICPA), and the Healthcare Financial Management (HFMA) organization, where she has earned the Certified Healthcare Finance Professional Certification, and is an active member of the HFMA Large System Controller Council.

In addition to her interest in the healthcare industry and finance, she enjoys traveling, and spending time with family at the beach.

Terri MayesTerri Mayes
Vice President, Warren Memorial Hospital

Terri Mayes is the vice president of Warren Memorial Hospital.

Terri is a member of the American Nurses Association, the Virginia Nurses Association and the Healthcare Roundtable for Patient Care Executives. She is also a member of the Premier CNO Network Executive Leadership Council.

Terri earned a Master of Business Administration from James Madison University, a Bachelor of Science in Nursing from James Madison University and an Associate of Science in Nursing from Shenandoah University. She is certified by the American Nurses Association as a Nurse Executive, Advanced – Board Certified (NEA-BC).

Robert Meltvedt, MD
Vice President, Medical Affairs, Warren Memorial Hospital

Robert Meltvedt, MDRobert C. Meltvedt, Jr., MD is the vice president of medical affairs for Warren Memorial Hospital and is board certified in surgery.

Dr. Meltvedt has been with Warren Memorial Hospital for nearly 20 years, and prior to this position served at Grande Ronde Hospital in La Grande, Oregon.

He is a Fellow in the American College of Surgeons.

Dr. Meltvedt received his medical degree from University of California San Diego. He completed his residency in General Surgery at the University of Washington, where he also served as chief resident.

Nicolas C. Restrepo, MD
Valley Health Quality and Patient Safety Officer

Nicolas C. Restrepo, MDNicolas C. Restrepo, MD, serves as the quality and patient safety officer of Valley Health. A board-certified urologist, prior to assuming his current role as vice president of Medical Affairs, Dr. Restrepo had been in private practice with Urology Clinic of Winchester and a member of the Winchester Medical Center attending medical staff since 1995. He has served as chairman of Winchester Medical Center’s Division of Urology, chair of the Department of Surgery, and a member of the Medical Staff Executive Committee. Dr. Restrepo has provided leadership to the Medical Staff Affairs department on a variety of technology and communication initiatives, quality reviews, and new physician orientation.

Dr. Restrepo earned his undergraduate degree from Catholic University of America, and his medical degree from the University of Virginia. He completed his internship and residency at Pennsylvania State University College of Medicine in Hershey, PA.

Brad Rogers, MHA

Chief Operating Officer, Valley Health Medical Group, and Vice President, Valley Physician Enterprise

Brad RogersBrad Rogers, MHA, is chief operating officer of Valley Health Medical Group and vice president of Valley Physician Enterprise. He joined the hospital system in August 2021. Rogers has over 10 years of senior healthcare management experience with a focus on physician practice management. Prior to joining Valley Health, Rogers was vice president of operations at Lexington Medical Center in South Carolina. He was also the chief administrative officer of UCLA Health’s Department of Orthopaedic Surgery in Los Angeles, California. Rogers began his healthcare career at Palmetto GBA, a Blue Cross Blue Shield of South Carolina subsidiary, where he created training programs used by Medicare contractors throughout the U.S.

During his 25-year healthcare career, Rogers has built high-performing teams to assist physician practices in maximizing patient experience and optimizing physician efficiency and productivity. Rogers has also created successful healthcare administrative and nurse practitioner fellowship programs to prepare others for healthcare service. Rogers received his Bachelor of Arts from Emmanuel College and his Master of Health Administration from Saint Louis University.

Mary Sas
Vice President, Hampshire Memorial Hospital

Mary SasMary Sas is vice president of Hampshire Memorial Hospital. She has been with Valley Health since 2014, and has more than 29 years of clinical leadership experience.

Prior to joining Hampshire Memorial Hospital as the director of Clinical Services, she served as the chief nursing officer for Fairfield Memorial Hospital in South Carolina and as an emergency department nurse manager at Lexington Medical Center and night administrator at Palmetto Health in South Carolina.

She is on the West Virginia University School of Nursing Advisory Board, is a member of the Rotary in Romney, WV and is a Board Certified Emergency Nurse.

Sas has a Bachelor of Science in Education and a Bachelor of Science in Nursing from the University of South Carolina. She received her Master of Science in Health Care Management and MBA from the University of Phoenix.

Heather SigelHeather Sigel
Vice President, War Memorial Hospital

Heather Sigel is the vice president of War Memorial Hospital and has been with Valley Health since 2014.

Heather has been involved in healthcare for over 20 years and has served in numerous clinical and leadership roles. She is a member of the American College of Healthcare Executives, Board of Directors for United Way of Eastern Panhandle, Board of Directors for WVONE (West Virginia Organization of Nurse Executives) and also serves as Rotary Member in Morgan County, WV.

Sigel received a Bachelor’s Degree in Nursing from The Pennsylvania State University and a Master’s in Business Administration from Mount St. Mary’s University.

Tonia Suber

Vice President of Human Resource Business Partnerships, Valley Health Photo of Tonia Suber

Tonia joined Valley Health in 2020 with a diverse background in healthcare and human resources. Prior to Valley Health, she served in an executive leadership role as the AVP of Human Resources for Inova Mount Vernon Hospital. Her previous employment also includes Inova Alexandria Hospital, Lorton Healthplex and Springfield Healthplex. Her leadership roles in human resources included New College of Florida and University of South Florida.

She earned her B.S. in Business Administration from the University of Pittsburgh and a M.S. in Organization & Management from Capella University. She has completed all course work and passed the comprehensive examination towards a PhD in Organizational Leadership, also with Capella University. Tonia is trained in mediation and conflict resolution, courageous conversations, critical conversations, and has a certification as a Just Culture Champion. She also has a Strategic HR Business Partner (sHRBP) certification.

Matthew Toomey, JD
Vice President, Patient Financial Services

Matthew Toomey, JDMatthew T. Toomey, JD, joined Valley Health in 2015 as vice president, Patient Financial Services, focused on optimizing technology and creating opportunities for service excellence.

Toomey was previously director of Patient Financial Services at Johns Hopkins Health System and a senior consultant with O’Boyle, Inc., in Baltimore, providing healthcare clients with revenue cycle review, project management and accounts collections.

Toomey earned a Juris Doctor degree from The Columbus School of Law at The Catholic University of America, where he also completed his bachelor’s degree.

Barbara Walter, MD
Vice President, Medical Affairs, Page Memorial Hospital and Shenandoah Memorial Hospital

Barbara Walters, MD

Barbara Walter, MD, is the vice president of Medical Affairs for Page Memorial Hospital in Luray, Virginia, and Shenandoah Memorial Hospital in Woodstock, Virginia, and is board certified in surgery. Dr. Walter received her medical degree from the Medical College of Philadelphia. She completed her residency at Walter Reed National Medical Center in Washington, DC.

Anne Whiteside
Vice President, Nursing, Winchester Medical Center

Anne WhitesideAnne Whiteside is vice president of Nursing for Winchester Medical Center, and joined Valley Health in 2013.

She began her career as a staff nurse at Columbia Presbyterian Medical Center in New York City and worked at the Rusk Institute of Rehabilitation Medicine, an affiliate of New York University Medical Center.

During her career, Whiteside has served as a clinical coordinator, educator, consultant and administrator for rehabilitation services, long-term care and acute care facilities in New York, Connecticut and Texas.

Whiteside earned a Bachelor of Science in Nursing from Columbia University, and Master of Business Administration from Ellis College at the New York Institute of Technology. She holds additional certifications in rehabilitation nursing (CRRN), healthcare quality (CPHQ), Nursing Executive (NEA-BC).

Valley Health System Board of Trustees

  • Joseph F. Silek, Jr. – Chair
  • Harry S. Smith – Vice Chair
  • Thomas T. Gilpin – Secretary
  • Steven E. Cluss
  • James G. Dale, DO
  • Chad Dansie, MD
  • Melody Eaton, PhD, MBA, RN, CNE, FAAN
  • Marie Imoh
  • Patrick D. Ireland, MD
  • Katherine Johnson, MD
  • Mark Nantz, MHA, President and CEO
  • Mary Beth Price
  • Clifton L. “Kip” Rutherford

West Region Hospitals Board of Trustees

  • Brad Close - Chairman
  • Steve Slonaker - Vice Chairman
  • Rebecca Stotler - Secretary
  • Joseph Hashem, MD
  • Anthony Haywood, DO
  • Thomas Kluge, President, West Region Hospitals
  • Tom Leslie, DDS
  • Mark Nantz, MHA, President and CEO
  • Cynthia Price
  • Kevin McLaughlin, DO
  • Andrew Wilcox, MD