NPPES file of Aug 9, 2026

Oliver Alfred Williams, M.D.

Emergency Medicine Physician · Brownwood, TX

Oliver Alfred Williams, M.D. is an emergency medicine physician with a practice address in Brownwood, Texas, and NPI 1013975820, issued on May 2, 2006. Check the license (Texas D8112, 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
1013975820
Name
Oliver Alfred Williams
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
D8112 TX
Self-reported in NPPES; status is on the state search
Practice location
1501 Burnet RD, Brownwood, TX 76801
Phone
(830) 990-4133
Enumerated
May 2, 2006
Record last updated
Oct 30, 2013 (not updated in 13 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1501 Burnet RD

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

  1. Haley Day, CRNACertified Registered Nurse Anesthetist1457178030
  2. Anant Dhavale, MDMedical Oncology Physician1467416404
  3. Madeline Dorris, PA-CPhysician Assistant1982563680
  4. Ashley Gregory, PHARMDPharmacist1679745152
  5. John Gwin, MDEmergency Medicine Physician1417915489
  6. Donald Howard, MDDiagnostic Radiology Physician1609839455

Verify Oliver Alfred Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license D8112
    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

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85% more Medicare Part D claims than the average emergency medicine physician in 2024

418 Medicare Part D claims for 237 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 66 claims were for opioids.

  1. Oliver Williams418
  2. Specialty average226

Most prescribed

  1. Celecoxib51 claims
  2. Hydrocodone-Acetaminophen35 claims
  3. Cefdinir33 claims
  4. Ondansetron Odt28 claims
  5. Acetaminophen-Codeine27 claims
  6. Sulfamethoxazole-Trimethoprim19 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.

Oliver Alfred Williams among 4,885 emergency medicine physician records in Texas

Oliver Alfred Williams, M.D. is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 67% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2013 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 emergency medicine physician records list a practice address in Brownwood

They are 5 of the 361 NPPES records with a practice address in Brownwood, and 4,885 emergency medicine physician records in Texas.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. John Gwin, MDBrownwood, TX 768011417915489
  2. Stephen Nichols, M.D.Brownwood, TX 768011912955899
  3. Zachariah Patrick, DOBrownwood, TX 768011780841742
  4. Lathon Worthington, M.D.Brownwood, TX 768011235196502
  5. Daniel Heimbecker, MDBallinger, TX 768211255398061
  6. Jay Allport, D.O.Waco, TX 767121790030906
  7. John Bambeck, M.D.Waco, TX 767121306403563
  8. Brennon Barajas, MDWaco, TX 767121053801423

Common questions

What is Oliver Alfred Williams, M.D.'s NPI number?

Oliver Alfred Williams, M.D.'s National Provider Identifier (NPI) is 1013975820, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Oliver Alfred Williams, M.D. located?

The NPPES record lists a practice address at 1501 Burnet RD, Brownwood, TX, 76801. Phone: (830) 990-4133. Providers update this record themselves, so call before visiting.

How can I verify Oliver Alfred Williams, M.D.'s license?

NPPES lists Texas license number D8112, 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 Oliver Alfred Williams, M.D. prescribe under Medicare Part D?

In 2024, Oliver Alfred Williams, M.D. had 418 Medicare Part D claims for 237 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.