Dr. Santiago Villarreal
- Gender: Male
- Experience: 44 years
- Graduation year: 1977
- Sole propriator: Yes
- NPI: 1225035199
Dr. Santiago Villarreal M.D.
Nephrologist
He is located at 4151 Callaghan Road Suite 103 in San Antonio, TX 78228. Can help patients with the following: Constipation, Fever, Headache, Heart Disease, Hemolytic Uremic Syndrome (HUS), Peptic Ulcer. His National Provider Identifier (NPI) number is 1225035199. Appointment can be made via the phone number (210) 647-1195. He is affiliated with 4 hospitals.
Conditions treated
Dr. Santiago Villarreal, being an nephrologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Santiago Villarreal.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Blood in Urine
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Gout
- Headache
- Heart Disease
- Hemolytic Uremic Syndrome (HUS)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hydronephrosis
- Hypercalcemia
- Hyperkalemia
- Hyperlipidemia
- Hyperparathyroidism
- Hyponatremia
- Influenza
- Inguinal Hernia
- Kidney Cancer
- Kidney Failure
- Kidney Infection
- Kidney Stones
- Low Blood Pressure
- Low Potassium
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Polycystic Kidney Disease (PKD)
- Prescription Refill
- Rhabdomyolysis
- Urethritis
- Urinary Tract Infection (UTI)
- Vitamin D Deficiency
Procedures Performed by Dr. Santiago Villarreal
Insurances Accepted by Dr. Santiago Villarreal
- Clover
- Medicare
- Oscar
Medicare Enrollment
Dr. Santiago Villarreal is enrolled to bill Medicare as a Practitioner - Nephrology (also registered under: Practitioner - Internal Medicine) .
Medicare practice location(s) (city/state/zip only, as reported to Medicare):
- PEARSALL, TX, 78061-6604
- SAN ANTONIO, TX, 78228-3419
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Payments received
Drug payment
| Amgen | $372 |
| Baxter Healthcare | $257 |
| Mallinckrodt | $122 |
Other
| Food and Beverage | $1065 |
Studies
Graduated in 1977Additional Specialities
- Internist
Affiliated hospitals
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Questions & Answers
What conditions does Dr. Santiago Villarreal treat?
Dr. Santiago Villarreal provides treatment for Constipation, Fever, Headache, Heart Disease, Hemolytic Uremic Syndrome (HUS), Peptic Ulcer. For the full list see this list.
Does Dr. Santiago Villarreal accept patients with Clover?
Yes, Dr. Santiago Villarreal accepts patients with Clover.
Has Dr. Santiago Villarreal affiliation with hospitals?
Dr. Santiago Villarreal is affiliated with METHODIST HOSPITAL. For the full list of hospitals see this list.
Where can you meet with Dr. Santiago Villarreal?
Dr. Santiago Villarreal's office is located at 4151 Callaghan Road Suite 103 in San Antonio, TX 78228.