Our People

Nathan Mullins, MD
Addiction Medicine Fellowship Director
Ob/Gyn Generalist, MAHEC Ob/Gyn Specialists

Dr. Nathan Mullins is a board-certified obstetrician and gynecologist and addictionologist with expertise in substance used disorders in pregnancy.  He works as the medical director for an opioid treatment program as well as part-time faculty for the Mountain Area Health Education Center (MAHEC) ob/gyn residency program. Dr. Mullins earned his medical degree from the University of Kentucky College of Medicine and completed his residency at MAHEC. 

Nathan obtained his DATA-2000 waiver in 2016 and began treating pregnant and postpartum patients with buprenorphine for opioid use disorder as part of multidisciplinary team at MAHEC where he supervises and educates MAHEC residents and serves as a consultant for community physicians on the treatment of opioid use disorder in pregnant patients. Dr. Mullins is also the medical director for a community-based opioid treatment program that uses both methadone and buprenorphine to treat opioid use disorder.


Blake Fagan, MD
Chief Education Officer, UNC Health Sciences at MAHEC
Faculty, Department of Family Medicine, UNC School of Medicine
CDC Foundation North Carolina Clinical Consultant for the Opioid Crisis

Blake Fagan, MD, is a family physician at MAHEC Family Health Center in Asheville, chief education officer at UNC Health Sciences at MAHEC, a faculty member of the Department of Family Medicine at the University of North Carolina at Chapel Hill, and the CDC Foundation North Carolina Clinical Consultant for the Opioid Crisis.

Dr. Fagan directs the office-based opioid treatment services provided at MAHEC’s family health centers and trains healthcare providers and medical residency programs across the state in medication-assisted treatment, safe pain management, and safe opioid prescribing practices. Dr. Fagan completed his undergraduate education at the University of Missouri–Columbia, medical school at Vanderbilt University School of Medicine, and his family medicine residency at MAHEC in Asheville.


Carriedelle Fusco, FNP-BC
Co-director, MAHEC Office-Based Opioid Treatment Services

Carriedelle Wilson Fusco, MSN, FNP-BC, holds a master’s degree in nursing from Vanderbilt University and is board certified as a family nurse practitioner. Carriedelle joined the MAHEC Family Medicine Residency program in Asheville in 2012 and works with an interdisciplinary team to care for patients with chronic pain on chronic opioid therapy and patients struggling with opioid addiction and other substance use disorders. She also teaches medical, nursing, and pharmacy students; medical residents; other learners; and community providers in the management of chronic pain and substance use disorders. Carriedelle is the co-medical director for office-based opioid treatment services at MAHEC Family Health Centers.