Gonzaba Medical Group

Specialty Care

Gonzaba Medical Group


Rheumatology Specialists – Dr. Ana Ballester-Fiallo and Dr. Aaron Garza

The role of the Rheumatologist is to diagnose (detect), treat, and medically manage patients with arthritis and other rheumatic diseases.

Dr. Ana Ballester-Fiallo is Board Certified in Rheumatology and Internal Medicine.

Dr. Ballester-Fiallo’s Schedule Monday, Wednesday, Thursday morning and Friday at the Downtown Clinic. Thursday afternoons at the Main Medical Center, and Tuesday at the Northwest Medical Center.

Dr. Aaron Garza is Board Certified in Rheumatology and Internal Medicine including certification in Musculoskeletal Ultrasound.

Dr. Garza’s Schedule:  Monday through Friday at our Main Medical Center.


Rheumatology offers services such as:
  • Ankylosing Spondylitis
  • Antiphospholipid Syndrome
  • Carpal tunnel Syndrome
  • Dermatomyositis
  • Gout
  • Inflammatory muscle disease
  • Lupus Anticoagulant
  • Lupus Nephritis
  • MCTD and overlap syndromes
  • Microscopic Polyangiitis
  • Osteoporosis
  • Polymyalgia Rheumatica
  • Polymyositis
  • Psoriatic Arthritis
  • Reactive Arthritis
  • Relapsing Polychondritis
  • Rheumatoid Arthritis
  • Scleroderma
  • Sjogren Syndrome
  • Systemic Lupus Erythematosus
  • Temporal Arteritis
  • Treatment of Arthritis
  • Vasculitis
  • Wegener’s granulomatosis
In office procedures:
  • Injections of the:
    • Knee
    • Hip (Dr. Garza only)
    • Shoulder
    • Trochanteric Hip
    • Elbow
    • Wrists
    • Ankle
    • Finger Joints
  • Aspiration of the above joints
  • Carpal tunnel Injection
  • DeQuervain’s Injections (Dr. Garza only)
  • Trigger finger injections
  • Trigger point injections on trapezius muscle
  • Ultrasound Guided and Blind intra-articular/soft tissue injections (Dr. Garza Only)