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

GREGG VALENZUELA, MD

GASTROENTEROLOGY

Medical school: UNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE

Graduated: 1978

NPI: 1942250188

Practice Locations (1)

STILLWATER MEDICAL CENTER AUTHORITY

1301 W 6TH AVE, SUITE 108 ADULT GASTRO OF SW

STILLWATER, OK 740744377

4055331695

Source: CMS National Downloadable File, September 2026.

GREGG VALENZUELA, MD | HealthCareAtlasUSA