NPPES file of Aug 9, 2026

William C. Hamilton, M.D.

Psychiatry Physician · Ponca City, OK

William C. Hamilton, M.D. is a psychiatry physician with a practice address in Ponca City, Oklahoma, and NPI 1235152265, issued on Jul 25, 2006. Check the license (Oklahoma 9934, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1235152265
Name
William C. Hamilton
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
9934 OK
Self-reported in NPPES; status is on the state search
Practice location
425 Fairview Ave Ste 3, Ponca City, OK 74601
Phone
(580) 765-3900
Enumerated
Jul 25, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(580) 765-7256
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 425 Fairview Ave Ste 3

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

  1. Janice Brewer-Bell, LPCProfessional Counselor1508889502
  2. Ruth Riley, LPCProfessional Counselor1629092416

Verify William C. Hamilton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 9934
    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 Oklahoma license search

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William C. Hamilton among 463 psychiatry physician records in Oklahoma

William C. Hamilton, M.D. is one of 463 psychiatry physician records with a practice address in Oklahoma. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 56% newer
  • In a Medicare fileNo · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · 46% of these records are
  • Record last updated2007 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Oklahoma

There are 463 psychiatry physician records in Oklahoma. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Robert McIntyre, M.D.Ponca City, OK 746011871503110
  2. James Howard, M.D.Talihina, OK 745711275506834
  3. Jean Helmbright, MDFairfax, OK 746371689628711
  4. Kelly Andrzejczyk-Beatty, DOMcAlester, OK 745011598083172
  5. Richard Bowden, MDMcAlester, OK 745011174586374
  6. Theresa Farrow, MDMcAlester, OK 745011659324291
  7. Cheryl Feigal, M.D.McAlester, OK 745011831301977
  8. Donald Quiver, M.D.McAlester, OK 745011467546176

Common questions

What is William C. Hamilton, M.D.'s NPI number?

William C. Hamilton, M.D.'s National Provider Identifier (NPI) is 1235152265, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William C. Hamilton, M.D. located?

The NPPES record lists a practice address at 425 Fairview Ave Ste 3, Ponca City, OK, 74601. Phone: (580) 765-3900. Providers update this record themselves, so call before visiting.

How can I verify William C. Hamilton, M.D.'s license?

NPPES lists Oklahoma license number 9934, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. 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. 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.