NPPES file of Aug 9, 2026

William S. James, MD

Psychiatry Physician · Mesa, AZ

William S. James, MD is a psychiatry physician with a practice address in Mesa, Arizona, and NPI 1952340028, issued on Jun 5, 2006. Check the license (Arizona 23117, as entered in NPPES) on the Arizona Medical Board; 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
1952340028
Name
William S. James
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
23117 AZ
Self-reported in NPPES; status is on the state search
Practice location
570 W Brown RD, Mesa, AZ 85201
Phone
(480) 344-2002
Enumerated
Jun 5, 2006
Record last updated
Sep 16, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicaid ID
436841 AZ
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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8 nearest psychiatry physician records → All 942 in Arizona → Look up another NPI →

Also registered at 570 W Brown RD

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

  1. Ryan Adams, BEHAVIORIALISTClinical Social Worker1861611519
  2. Gretchen Alexander, MDPsychiatry Physician1851579783
  3. Erum Ali, MDChild & Adolescent Psychiatry Physician1982622072
  4. Maria-Jesus Bailon, MDPsychiatry Physician1326085358
  5. Nicholas Baldwin, D.O.Psychiatry Physician1598022063
  6. Vernon Barksdale, MD,MPHPsychiatry Physician1871547380

Verify William S. James in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 23117    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 Arizona 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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William S. James among 942 psychiatry physician records in Arizona

William S. James, MD is one of 942 psychiatry physician records with a practice address in Arizona. 67% 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 · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 41% of these records are
  • Record last updated2011 · 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 2084P0800X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Arizona

There are 942 psychiatry physician records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 942 in Arizona → Every provider in Mesa → Psychiatry Physician nationwide →

The 8 psychiatry physician records with the nearest ZIP codes

  1. Maria-Jesus Bailon, MDMesa, AZ 852011326085358
  2. Vernon Barksdale, MD,MPHMesa, AZ 852011871547380
  3. Esad Boskailo, MDMesa, AZ 852011245284660
  4. Laura Don, MDMesa, AZ 852011922052182
  5. Samuel Hand, MDMesa, AZ 852011780639161
  6. Dennis Hughes, MDMesa, AZ 852011073552527
  7. Carol Olson, MDMesa, AZ 852011639125313
  8. Kamala Premkumar, MDMesa, AZ 852011629025226

Common questions

What is William S. James, MD's NPI number?

William S. James, MD's National Provider Identifier (NPI) is 1952340028, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William S. James, MD located?

The NPPES record lists a practice address at 570 W Brown RD, Mesa, AZ, 85201. Phone: (480) 344-2002. Providers update this record themselves, so call before visiting.

How can I verify William S. James, MD's license?

NPPES lists Arizona license number 23117, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.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.

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.