This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / CA

GREGG P HARTMAN, MD

SPORTS MEDICINE

Medical school: TULANE UNIVERSITY SCHOOL OF MEDICINE

Graduated: 1992

Also: ORTHOPEDIC SURGERY

NPI: 1336105238

Practice Locations (1)

VENTURA ORTHOPEDICS MEDICAL GROUP INC

2525 ERRINGER RD

SIMI VALLEY, CA 930652352

8055271404

Source: CMS National Downloadable File, September 2026.

GREGG HARTMAN, MD | HealthCareAtlasUSA