NPPES file of Aug 9, 2026

John S. Clayton, D.O.

Psychiatry Physician · West Chester, PA

John S. Clayton, D.O. is a psychiatry physician with a practice address in West Chester, Pennsylvania, and NPI 1881665065, issued on Jan 27, 2006. Check the license (Pennsylvania OS004553L, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1881665065
Name
John S. Clayton
Credential
D.O.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
OS004553L PA
Self-reported in NPPES; status is on the state search
Practice location
117 S New St, West Chester, PA 19382
Phone
(610) 687-3033
Enumerated
Jan 27, 2006
Record last updated
Feb 8, 2022
Fax
(610) 717-5810
Medicaid ID
94438101 PA
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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Verify John S. Clayton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license OS004553L
    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 Pennsylvania license search

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John S. Clayton among 2,662 psychiatry physician records in Pennsylvania

John S. Clayton, D.O. is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 61% newer
  • In a Medicare fileNo · 72% of these records are
  • In the CMS Doctors and Clinicians fileNo · 45% of these records are
  • Record last updated2022 · 60% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Pennsylvania

There are 2,662 psychiatry physician records in Pennsylvania. 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. Salman Alam, DOWest Chester, PA 193821245811413
  2. Terrence Boyadjis, MDWest Chester, PA 193821669699120
  3. Willie Earley, M.D.West Chester, PA 193821730451170
  4. Muhammad Anjum Irfan, M.D.West Chester, PA 193821902851983
  5. Stuart Levy, DOWest Chester, PA 193821881796688
  6. Suzanne Palekar, DOWest Chester, PA 193821235557653
  7. Carol Persons, M.D.West Chester, PA 193821568617678
  8. Regina Reed, MDWest Chester, PA 193821093871501

Common questions

What is John S. Clayton, D.O.'s NPI number?

John S. Clayton, D.O.'s National Provider Identifier (NPI) is 1881665065, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John S. Clayton, D.O. located?

The NPPES record lists a practice address at 117 S New St, West Chester, PA, 19382. Phone: (610) 687-3033. Providers update this record themselves, so call before visiting.

How can I verify John S. Clayton, D.O.'s license?

NPPES lists Pennsylvania license number OS004553L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. 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.