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 / TX

RALPH EUGENE GRINNELL

NURSE PRACTITIONER

Medical school: UNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO

Graduated: 2010

NPI: 1457666109

Practice Locations (1)

TMC PROVIDER GROUP PLLC

23611W INTERSTATE 10

SAN ANTONIO, TX 782571694

2106986617

Source: CMS National Downloadable File, September 2026.

RALPH GRINNELL | HealthCareAtlasUSA