HealthCareAtlasUSA

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 / OK

JOHN GEMMA, DO

INTERNAL MEDICINE

Graduated: 2014

NPI: 1750791760

Practice Locations (2)

TULSA HOSPITAL MEDICINE PHYSICIANS GROUP, LLC

10502 N 110TH E AVE, BAILEY MEDICAL CENTER

OWASSO, OK 740556655

9185792300

TULSA HOSPITAL MEDICINE PHYSICIANS GROUP, LLC

1120 S UTICA AVE, HILLCREST MEDICAL CENTER

TULSA, OK 741044012

9185791000

Source: CMS National Downloadable File, September 2026.

JOHN GEMMA, DO | HealthCareAtlasUSA