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

Arif Aziz, MD
Service Line Chief | Digestive Health

Carrie Stinson, MD
Service Line Chief | Pediatrics

Barry Mangel, MD
Service Line Chief | Cardiovascular

Alan Muster, MD, MBA, MHA, FCCP
Service Line Chief | Pulmonary

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

Steve McCune, MD
Service Line Chief | Oncology

Paula Greaves, MD, FACOG
Service Line Chief | Women's Health

Rishi Gupta, 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