Wellstar Service Line Leadership
Our team of Service Line Chiefs is comprised of industry-leading healthcare experts across over 300 locations who support over 100 medical specialties.
Service Line Leadership

Val Akopov, MD, MBA, MHA, SFHM
Service Line Chief | Hospital Medicine
Alan Muster, MD, MBA, MHA, FCCP
Service Line Chief | Pulmonary

Arif Aziz, MD
Service Line Chief | Digestive Health

Carrie Stinson, MD
Service Line Chief | Pediatrics
Barry Mangel, MD
Service Line Chief | Cardiovascular

Jay Singh, MD, FACS, FASCRS
Service Line Chief | Surgery
Jeff L. Tharp, MD, MPH
Service Line Chief | Medicine/Primary Care
Joseph Burns, MD, FAAOS
Service Line Chief | Musculoskeletal

Michael Andrews, MD
Service Line Chief | Oncology

Paula Greaves, MD, FACOG
Service Line Chief | Women's Health
Gupta Rishi, MD
Service Line Co-Chief | Neuro Care

Ryan Breshears, PhD, ABPP
Service Line Chief | Behavioral Health
William Benedict, MD
Service Line Co-Chief | Neuro Care