NPPES file of Aug 9, 2026

Thomas C. Williams, M.D.

Anesthesiology Physician · Russellville, AR

Thomas C. Williams, M.D. is an anesthesiology physician with a practice address in Russellville, Arkansas, and NPI 1790786408, issued on Aug 3, 2005. Check the license (Arkansas C7989, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1790786408
Name
Thomas C. Williams
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
C7989 AR
Self-reported in NPPES; status is on the state search
Practice location
1808 W Main St, Russellville, AR 72801
Phone
(479) 968-2841
Enumerated
Aug 3, 2005
Record last updated
Jun 3, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
125265001 AR
Medicare enrollment
Enrolled (PECOS I20060328000503); accepts Medicare assignment
Medical or professional school
University Of Arkansas College Of Medicine, 1990
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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8 nearest anesthesiology physician records → All 390 in Arkansas → Look up another NPI →

Also registered at 1808 W Main St

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

  1. Ashley Bennett, APRNFamily Nurse Practitioner1073187126
  2. Clifford Breier, CRNACertified Registered Nurse Anesthetist1912999442
  3. Brittany Calvert, PA-CMedical Physician Assistant1356842710
  4. Mark Chronister, PDPharmacist1366514929
  5. Chantell Corkern, APRNFamily Nurse Practitioner1194321711
  6. James Crouch, MDHospitalist Physician1437115508

Verify Thomas C. Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license C7989    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 Arkansas 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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Bills Medicare through one group practice

  1. St Mary's Specialty LLCRussellville, AR

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

Thomas C. Williams among 390 anesthesiology physician records in Arkansas

Thomas C. Williams, M.D. is one of 390 anesthesiology physician records with a practice address in Arkansas. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1990 · median 2004 among the 250 with a school on file
  • Record last updated2008 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in Arkansas

There are 390 anesthesiology physician records in Arkansas.

All 390 in Arkansas → Every provider in Russellville → Anesthesiology Physician nationwide →

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Stanley Gately, M.D.Russellville, AR 728011497756407
  2. Virgil Massey, M.D.Russellville, AR 728011730180753
  3. Ahmad Rafi, M.D.Russellville, AR 728011285671487
  4. Reagan Baber, MDSpringdale, AR 727641609095934
  5. Rodger Dunigan, MDSpringdale, AR 727641689751349
  6. Dennis Floyd, MDSpringdale, AR 727641902983653
  7. Daniel Harris, MDSpringdale, AR 727641548347214
  8. Kristen Lienhart, M.D.Springdale, AR 727641932308277

Common questions

What is Thomas C. Williams, M.D.'s NPI number?

Thomas C. Williams, M.D.'s National Provider Identifier (NPI) is 1790786408, issued on Aug 3, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas C. Williams, M.D. located?

The NPPES record lists a practice address at 1808 W Main St, Russellville, AR, 72801. Phone: (479) 968-2841. Providers update this record themselves, so call before visiting.

How can I verify Thomas C. Williams, M.D.'s license?

NPPES lists Arkansas license number C7989, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.