Patient Portal Patient Portal
open enrollment oct 15th - dec 7th The Gonzaba Story

Find A Doctor

Ana Ballester Fiallo, MD

Board Certified Rheumatology and Internal Medicine

Location(s): Downtown Clinic
test-120x160

Dr. Ballester-Fiallo, a native of Puerto Rico, moved to San Antonio in 1987. She earned her medical degree from the University of Puerto Rico School of Medicine and went on to continue her residency at the University District Hospital in San Juan, Puerto Rico. Dr. Ballester served in the Armed Forces (Army) during Desert Storm 1989-1993. Dr. Ballester-Fiallo completed a Fellowship in Rheumatology at the University of Puerto Rico and University District Hospital. She also received a Fellowship in Clinical Immunology from the UT Health Science Center in San Antonio.

Dr. Ballester-Fiallo is Board Certified in Rheumatology and Internal Medicine. She was also an Instructor of Medicine at the University of Puerto Rico and UT Health Science Center in San Antonio. She joined Gonzaba Medical Group as a Rheumatology Specialist in 2014.

Dr. Ballester-Fiallo is fluent in English and Spanish.

Our Locations

Occupational Medicine & Therapy Center

730 Pleasanton Road
San Antonio, TX 78214
Main telephone: 210-921-3800

South East Clinic

3520 S. New Braunfels
San Antonio, TX 78223
Main telephone: 210-921-3800

North Central Clinic

6487 Blanco Rd.
San Antonio, TX 78216
Main telephone: 210-921-3800

Main Clinic

720 Pleasanton Road
San Antonio, TX 78214
Main telephone: 210-921-3800

Northwest Clinic

7616 Culebra Road
San Antonio, TX 78251
Main telephone: 210-921-3800

Woodlawn Clinic

902 Bandera Road
San Antonio, TX 78228
Main telephone: 210-921-3800

Downtown Clinic

1303 McCullough Ave.
San Antonio, TX 78212
Main telephone: 210-921-3800

Guadalupe Clinic

1423 Guadalupe Street
San Antonio, TX 78207
Main telephone: 210-921-3800