NPPES file of Aug 9, 2026

Clayton W. James, D.O.

Anesthesiology Physician · Thornton, CO

Clayton W. James, D.O. is an anesthesiology physician with a practice address in Thornton, Colorado, and NPI 1205222916, issued on Apr 9, 2015. Check the license (Colorado DR.0062329, as entered in NPPES) on the Colorado 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
1205222916
Name
Clayton W. James
Credential
D.O.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
DR.0062329 CO
009353 AZ
Self-reported in NPPES; status is on the state search
Practice location
9191 Grant St, Thornton, CO 80229
Phone
(303) 451-7800
Enumerated
Apr 9, 2015
Record last updated
May 12, 2023
Medicare enrollment
Enrolled (PECOS I20211222002220); accepts Medicare assignment
Medical or professional school
Edward Via Col Of Osteo Medicine-Virginia Campus, 2015
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 1,202 in Colorado → Look up another NPI →

Also registered at 9191 Grant St

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

  1. Christopher BanniganEmergency Medicine Physician1871616722
  2. Milena Beer, PA-CMedical Physician Assistant1457464950
  3. Leigh BelcherFamily Nurse Practitioner1881460186
  4. Jonathan Berman, MDAnesthesiology Physician1992747984
  5. Gerard Bernales, RN, MSN, FNP-CNurse Practitioner1639597909
  6. Matthew Bickelhaupt, PA-CPhysician Assistant1912559618

Verify Clayton W. James in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0062329    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 Colorado 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. Anesthesia Partners OF Arizona LLCPhoenix, AZ

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

Clayton W. James among 1,202 anesthesiology physician records in Colorado

Clayton W. James, D.O. is one of 1,202 anesthesiology physician records with a practice address in Colorado. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 80% of them.

  • NPI issued2015 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2015 · median 2006 among the 824 with a school on file
  • Record last updated2023 · 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 Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in Colorado

There are 1,202 anesthesiology physician records in Colorado.

All 1,202 in Colorado → Every provider in Thornton → Anesthesiology Physician nationwide →

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Jonathan Berman, MDThornton, CO 802291992747984
  2. Morgan Howland, M.D.Thornton, CO 802291750471033
  3. Richard Jacoby, M.D.Thornton, CO 802291124064704
  4. Tam Nguyen, M.D.Thornton, CO 802291497010573
  5. Frank BonifacioLakewood, CO 802281013949585
  6. Anthony BrocatoLakewood, CO 802281396789020
  7. Ben Chang, MDLakewood, CO 802281891909545
  8. Jose De Leon, M. D.Lakewood, CO 802281033273248

Common questions

What is Clayton W. James, D.O.'s NPI number?

Clayton W. James, D.O.'s National Provider Identifier (NPI) is 1205222916, issued on Apr 9, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Clayton W. James, D.O. located?

The NPPES record lists a practice address at 9191 Grant St, Thornton, CO, 80229. Phone: (303) 451-7800. Providers update this record themselves, so call before visiting.

How can I verify Clayton W. James, D.O.'s license?

NPPES lists Colorado license number DR.0062329, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. 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.