Gastroenterology
Mark Lazarev, M.D.
Baltimore, MD
Mark Lazarev, M.D., is a board-certified gastroenterologist affiliated with The Johns Hopkins Hospital in Lutherville, Maryland, with 24 years of clinical experience. Dr. Lazarev specializes in inflammatory bowel disease, including Crohn's disease and ulcerative colitis, as well as gender-affirming care. He earned his medical degree from the University of Pittsburgh School of Medicine and completed his gastroenterology training at leading institutions including Beth Israel Deaconess Medical Cent
18+
Years in Practice
Peer Recognition
- Baltimore Magazine — Top Doctor
2025
- Castle Connolly — Top Doctor
2025-2026 (2 years)
Clinical Focus
Subspecialties
Inflammatory Bowel Disease
Conditions & Treatments
Inflammatory Bowel DiseaseCrohn's DiseaseUlcerative Colitis
Practice Details
Hospital Affiliations
- Johns Hopkins Bayview Medical Center
Experience
18+ years in practice