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 / TX

ANA MYRIAM BALLESTER FIALLO, MD

RHEUMATOLOGY

Medical school: UNIVERSITY OF PUERTO RICO SCHOOL OF MEDICINE

Graduated: 1982

NPI: 1811007412

Practice Locations (1)

GMG HEALTH SYSTEMS ASSOCIATES PA

1130 GOLIAD RD, GONZABA MEDICAL GROUP

SAN ANTONIO, TX 782231846

2109213800

Source: CMS National Downloadable File, September 2026.