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Amarillo Medical Specialists

Endocrinology • Amarillo, TX • Since 1994 • 2 (Main Office at 9092 Westgate Pkwy W; Coulter Office at 1900 Coulter St) locations

About

Amarillo Medical Specialists LLP is a privately held medical practice based in Amarillo, Texas, founded in 1994. It operates as a comprehensive adult primary care group with access to a broad range of subspecialists, including gynecology, pulmonary disease, rheumatology, endocrinology, diabetes, kidney disease, infectious diseases, and neurology. The practice employs about 41 people and generates roughly $12.9 million in annual revenue. It has five offices in Amarillo, with the headquarters at 1215 S Coulter St, Ste 400, Amarillo, TX 79106, and additional locations on Coulter Street. Contact: (806) 350-7520 or +1 806-358-8331. Website: amarillomed.com.

Clinic Type

Endocrinology

Address

9092 Westgate Pkwy W, Amarillo, TX 79124; Coulter Office: 1900 Coulter St, Amarillo, TX 79106

Phone

(806) 350-7311

Email

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Opening Hours

Open Monday–Friday 8:00 a.m. to 6:00 p.m.; Saturday 9:00 a.m. to 3:00 p.m. (Urgent Care Clinic hours; main clinic hours may differ)

Emergency Care

Call 911 for emergencies

Services Offered

  • Endocrinology/Diabetes
  • Endocrinology
  • Diabetes care

Team

  • William C. Biggs, MD, FACE, MD, FACE — Endocrinologist

Insurance & Payment

  • Blue Cross Blue Shield of Texas (out of network for some plans as of May 1, 2026)

Out of network with certain BCBS Texas plans effective May 1, 2026; patients should review insurance benefits and options; continuity of care may apply for chronic conditions (form available: https://www.bcbstx.com/docs/forms/provider/tx/transitional-care-request-tx.pdf)

Languages Spoken

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FAQs

What are the hours for after-hours urgent, non-emergency care?

On-site Urgent Care Clinic is open Monday through Friday from 8:00 a.m. to 6:00 p.m and on Saturday from 9:00 a.m. to 3:00 p.m.

How can I contact the clinic for questions or medical guidance?

Contact your provider directly through the Patient Portal.

What should I do if AISD closes due to weather?

AMS follows AISD closures; if AISD closes, AMS will also be closed.

Is AMS in-network with BCBS Texas?

AMS contracts status with BCBS Texas is changing; some plans are out-of-network effective May 1, 2026; review benefits and options.

Where are AMS locations?

Main Office: 9092 Westgate Pkwy W, Amarillo, TX 79124; Coulter Office: 1900 Coulter St, Amarillo, TX 79106.

Awards & Accreditations

  • Texas Super Doctors 2025 (Endocrinology)
  • Texas Super Doctors 2025 (Endocrinology – William C. Biggs, MD)
  • Texas Super Doctors 2025 (Christopher Gulley, MD)
  • Texas Super Doctors 2025 (Alan Keister, MD)
  • Medicine Texas Super Doctors 2025 (Susan Neese, MD)
  • Texas Super Doctors 2025 (Steven Norris, MD)
  • Texas Super Doctors 2025 (Lawrence Schaeffer, MD)
  • Texas Rising Stars 2025 (Joanna Wilson, DO)
  • Texas Rising Stars 2025 (Ryan Batson Smithee, MD)

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • LocateHub (specific office): 5.0 out of 5 stars (25 reviews)

Patients praise

  • Physicians described as great or compassionate
  • Attentive care from specific providers

Common complaints

  • Difficulty reaching staff via phone or getting return calls
  • Administrative staff perceived as incompetent or unfriendly

"Amarillo Medical Specialists is really trying to incorporate a Mayo Clinic model, but they are hindered by incompetent, unfriendly, and even [staff]."

— Reddit

"My husband has been calling for over a week and leaving voicemails without a call or any form of communication back. They do not answer, or make attempts to ..."

— Yelp

"...physicians who are “great,” “literally the best Doctor to work with,” and “a blessing to the whole office.”"

— Nextdoor

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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