NPPES file of Aug 9, 2026

Stephen G. Meyer, PH.D.

Clinical Psychologist · Diamond Bar, CA

Stephen G. Meyer, PH.D. is a clinical psychologist with a practice address in Diamond Bar, California, and NPI 1225051006, issued on Jul 25, 2006. Check the license (California PSY 5149, as entered in NPPES) with the California board that licenses this profession; 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
1225051006
Name
Stephen G. Meyer
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PSY 5149 CA
Self-reported in NPPES; status is on the state search
Practice location
732 N Diamond Bar Blvd, Diamond Bar, CA 91765
Phone
(909) 861-7150
Enumerated
Jul 25, 2006
Record last updated
Mar 21, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(909) 860-1907
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 Stephen G. Meyer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PSY 5149
    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
Find the California license search

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Stephen G. Meyer among 12,647 clinical psychologist records in California

Stephen G. Meyer, PH.D. is one of 12,647 clinical psychologist records with a practice address in California. 9% 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 1% of them.

  • NPI issued2006 · 1% of these records are older, 80% newer
  • In a Medicare fileNo · 9% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2009 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 clinical psychologist records list a practice address in Diamond Bar

They are 11 of the 598 NPPES records with a practice address in Diamond Bar, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical psychologist records with the nearest ZIP codes

  1. Barbara Ammon, PH.D.Diamond Bar, CA 917651588749915
  2. Melissa Campitelli-Smith, PSY.D.Diamond Bar, CA 917651891809786
  3. Ronda Hampton, PH.D.Diamond Bar, CA 917651891820718
  4. Stephen Hill, PH.D.Diamond Bar, CA 917651952424699
  5. Allegra Klacsmann, PH.D.Diamond Bar, CA 917651871788414
  6. Justin Leiter-McBeth, PHDDiamond Bar, CA 917651679395701
  7. Saadia McLeod, PH.D.Diamond Bar, CA 917651407938129
  8. Richard Ortigo, PSYDDiamond Bar, CA 917651154551158

Common questions

What is Stephen G. Meyer, PH.D.'s NPI number?

Stephen G. Meyer, PH.D.'s National Provider Identifier (NPI) is 1225051006, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen G. Meyer, PH.D. located?

The NPPES record lists a practice address at 732 N Diamond Bar Blvd, Diamond Bar, CA, 91765. Phone: (909) 861-7150. Providers update this record themselves, so call before visiting.

How can I verify Stephen G. Meyer, PH.D.'s license?

NPPES lists California license number PSY 5149, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

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.