NPPES file of Aug 9, 2026

Brock Walker, MD

Family Medicine Physician · Amarillo, TX

Brock Walker, MD is a family medicine physician with a practice address in Amarillo, Texas, and NPI 1073257911, issued on Apr 26, 2022. Check the license (Texas V9737, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1073257911
Name
Brock Walker
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
V9737 TX
Self-reported in NPPES; status is on the state search
Practice location
9092 Westgate Pkwy W, Amarillo, TX 79124
Phone
(806) 677-2039
Enumerated
Apr 26, 2022
Record last updated
Sep 25, 2025
Fax
(806) 356-0045
Medicare enrollment
Enrolled (PECOS I20250819002527); accepts Medicare assignment
Medical or professional school
Texas Tech University Health Science Center School Of Medicine, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9092 Westgate Pkwy W

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christi Baker, M.D.Dermatology Physician1275858433
  2. Janet Barraza, FNP-CFamily Nurse Practitioner1306546932
  3. Mary Benard, FNPFamily Nurse Practitioner1962861864
  4. Tiffani BethelFamily Nurse Practitioner1598413825
  5. Sarah Biggs, MDAllergy & Immunology Physician1376079202
  6. William Biggs, M.D.Endocrinology, Diabetes & Metabolism Physician1033280862

Verify Brock Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license V9737
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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74% fewer Medicare Part D claims than the average family medicine physician in 2024

930 Medicare Part D claims for 107 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Brock Walker930
  2. Specialty average3,544

Most prescribed

  1. Carvedilol44 claims
  2. Atorvastatin Calcium37 claims
  3. Ozempic36 claims
  4. Levothyroxine Sodium35 claims
  5. Bupropion Xl34 claims
  6. Duloxetine Hcl29 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Amarillo Medical Specialists,llpAmarillo, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brock Walker among 11,119 family medicine physician records in Texas

Brock Walker, MD is one of 11,119 family medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.

  • NPI issued2022 · 94% of these records are older, 4% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2022 · median 2004 among the 7,095 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

119 family medicine physician records list a practice address in Amarillo

They are 119 of the 3,934 NPPES records with a practice address in Amarillo, and 11,119 family medicine physician records in Texas.

The 8 family medicine physician records with the nearest ZIP codes

  1. Crystal Stewart, MDAmarillo, TX 791241255838785
  2. Amy Cosgrove, M.D.Amarillo, TX 791211275844425
  3. James Hale, M.D.Amarillo, TX 791211548207566
  4. Hassan Imam, M.DAmarillo, TX 791211376614487
  5. Richard Bechtol, MDAmarillo, TX 791191780620757
  6. Cristiane Ennis, M.D.Amarillo, TX 791191861689572
  7. Debra Hammond, MDAmarillo, TX 791191194789420
  8. Donald Hubbard, MDAmarillo, TX 791191841262474

Common questions

What is Brock Walker, MD's NPI number?

Brock Walker, MD's National Provider Identifier (NPI) is 1073257911, issued on Apr 26, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Brock Walker, MD located?

The NPPES record lists a practice address at 9092 Westgate Pkwy W, Amarillo, TX, 79124. Phone: (806) 677-2039. Providers update this record themselves, so call before visiting.

How can I verify Brock Walker, MD's license?

NPPES lists Texas license number V9737, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brock Walker, MD prescribe under Medicare Part D?

In 2024, Brock Walker, MD had 930 Medicare Part D claims for 107 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.