Amarillo Medical Specialists
9092 Westgate Pkwy W, Amarillo, TX, 79124
What we can verify
Each claim below is backed by a source we checked. Claims we couldn’t evidence are simply absent, which does not mean the clinic doesn’t offer them.
GLP-1 care
confidence 0.90“Dr. Biggs provides comprehensive care for patients with diabetes, including dietary education, oral medications, GLP-1 therapy, insulin, insulin pumps, artificial pancreas systems, and continuous glucose sensors.”
Clinic website — www.amarillomed.com/physician-william-c-biggs • checked 2026-09-20
Accepting new patients
confidence 0.80“New patients are always welcomed.”
Clinic website — www.amarillomed.com/physician-estelle-archer • checked 2026-09-20
Clinicians
| Name | Specialty | Panel | NPI |
|---|---|---|---|
| Ako D. Bradford, MD, FACP | Internal Medicine | — | 1891738712NPI record verified |
| Alan Keister, MD | Internal Medicine | — | 1255373635NPI record verified |
| Christi Baker, MD | Dermatology | — | 1275858433NPI record verified |
| Christopher Gulley, MD | Internal Medicine | — | 1265790612NPI record verified |
| Estelle Archer, MD, FACOG | Obstetrics & Gynecology | — | 1134179492NPI record verified |
| Kathleen Clark, MD | Internal Medicine | — | 1518103886NPI record verified |
| Kenny M. Brantley, MD, PhD | Internal Medicine, Endocrinology, Diabetes & Metabolism | — | 1255408936NPI record verified |
| Maria Caga-Anan, MD | — | — | 1992002778NPI record verified |
| Miles Grant, MD | Psychiatry & Neurology, Psychiatry | — | 1649709023NPI record verified |
| Nicole Davey, MD | Internal Medicine, Rheumatology | — | 1740440502NPI record verified |
| Ruth Grant, MD | Psychiatry & Neurology, Psychiatry | — | 1174052658NPI record verified |
| Sarah Biggs, MD | Allergy & Immunology | — | 1376079202NPI record verified |
| William C. Biggs, MD, FACE | — | — | 1033280862NPI record verified |
An NPI is a registry identifier. Per NPPES, holding one does not establish that a provider is licensed or credentialed. Verify licensure with the relevant state medical or nursing board.
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Listing checked September 20, 2026. How we verify listings
GLP-1 Care Map lists providers and patient-reported information. It is not medical advice and does not recommend any provider or treatment. We do not verify licensure, and services and prices change: confirm details with the provider before you book.