Charissa C. Carfrey, AGPCNP NPI Number: 1043849938 Primary Specialty: Wound Care About Charissa Carfrey, RN, CWCN, AGPCNP-BC, is a certified Wound Care Nurse and certified Adult Gerontology Primary Care Nurse Practitioner. Return to WCVM Home Affiliations Winchester Medical Center Center for Advanced Wound Care & Hyperbaric Medicine