NPPES file of Aug 9, 2026

James David Guy, PH.D.

Clinical Psychologist · Pasadena, CA

James David Guy, PH.D. is a clinical psychologist with a practice address in Pasadena, California, and NPI 1144371410, issued on Jan 15, 2007. Check the license (California PSY7717, 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
1144371410
Name
James David Guy
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PSY7717 CA
Self-reported in NPPES; status is on the state search
Practice location
200 E Del Mar Blvd, Pasadena, CA 91105
Phone
(626) 229-9336
Enumerated
Jan 15, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
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 clinical psychologist records → All 12,647 in California → Look up another NPI →

Also registered at 200 E Del Mar Blvd

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

  1. Duane Alleman, PH.D.Psychologist1013031228
  2. Jack Anderson, PH.D.Clinical Psychologist1134330947
  3. Daniel Asimus, M.D., M.S.ED.Psychiatry Physician1205936242
  4. Elizabeth Ballance, PT, DPTPhysical Therapist1891164299
  5. Kathleen Barbaro, M.A. OTR/LOccupational Therapist1083961361
  6. Catherine Barker, PH.D.Clinical Psychologist1376774943

Verify James David Guy 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 PSY7717    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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James David Guy among 12,647 clinical psychologist records in California

James David Guy, 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 2007, is newer than 20% of them.

  • NPI issued2007 · 20% of these records are older, 57% newer
  • In a Medicare fileNo · 9% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2007 · 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).

293 clinical psychologist records list a practice address in Pasadena

They are 293 of the 10,525 NPPES records with a practice address in Pasadena, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 12,647 in California → Every provider in Pasadena → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Sandra Arroyo, PSY.D.Pasadena, CA 911051487608550
  2. Leine Delker, PH.D.Pasadena, CA 911051609978477
  3. Antonia Hoel, PSYPasadena, CA 911051184766271
  4. Barbara Janetzke, PH.D.Pasadena, CA 911051881725653
  5. Ricardo Martinez, PSY.D.Pasadena, CA 911051710027347
  6. Evelyn Novello, PH.D.Pasadena, CA 911051750416483
  7. Susan Sabo, PH.D.Pasadena, CA 911051316086176
  8. Joan Scott, PH.D.Pasadena, CA 911051457377392

Common questions

What is James David Guy, PH.D.'s NPI number?

James David Guy, PH.D.'s National Provider Identifier (NPI) is 1144371410, issued on Jan 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is James David Guy, PH.D. located?

The NPPES record lists a practice address at 200 E Del Mar Blvd, Pasadena, CA, 91105. Phone: (626) 229-9336. Providers update this record themselves, so call before visiting.

How can I verify James David Guy, PH.D.'s license?

NPPES lists California license number PSY7717, 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.

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.