NPPES file of Aug 9, 2026

Gil J. Grattan, PSY.D.

Clinical Psychologist · Pasadena, CA

Gil J. Grattan, PSY.D. is a clinical psychologist with a practice address in Pasadena, California, and NPI 1578996872, issued on Aug 10, 2013. Check the license (California PSY25878, 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
1578996872
Name
Gil J. Grattan
Credential
PSY.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PSY25878 CA
Self-reported in NPPES; status is on the state search
Practice location
446 S Marengo Ave, Pasadena, CA 91101
Phone
(818) 317-8866
Enumerated
Aug 10, 2013
Record last updated
Dec 26, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130930000506); accepts Medicare assignment
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 clinical psychologist records → All 12,647 in California → Look up another NPI →

Also registered at 446 S Marengo Ave

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

  1. Kristina BartekMarriage & Family Therapist1689965907
  2. Stephen Baughman, PSYD.Clinical Psychologist1548416191
  3. Roxanne Cooperstone, CADC LLL BOO1771124Addiction (Substance Use Disorder) Counselor1154146140
  4. Elisabeth Eilers, MFTMarriage & Family Therapist1003091638
  5. Fariba Mansouri, PH.D.Clinical Psychologist1073995452
  6. Elizabeth Sloan, LMFTMarriage & Family Therapist1477685766

Verify Gil J. Grattan 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 PSY25878    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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Gil J. Grattan among 12,647 clinical psychologist records in California

Gil J. Grattan, PSY.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 2013, is newer than 67% of them.

  • NPI issued2013 · 67% of these records are older, 29% newer
  • In a Medicare fileNo · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated2006 · median 2006 among the 2,424 with a school on file
  • Record last updated2015 · 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. Charles Barr, PHDPasadena, CA 911011467469353
  2. Gail Blesi, PH.D.Pasadena, CA 911011417031626
  3. Deborah Buckwalter, PH.D.Pasadena, CA 911011154428241
  4. Barbara Eurichrascoe, PHDPasadena, CA 911011558314443
  5. Mary Hayden, PH.D.Pasadena, CA 911011669542585
  6. Bruce Hirsch, PH.D.Pasadena, CA 911011104805852
  7. Cynthia Jackson, PHDPasadena, CA 911011235185653
  8. Robin Kietzman, PHDPasadena, CA 911011508972753

Common questions

What is Gil J. Grattan, PSY.D.'s NPI number?

Gil J. Grattan, PSY.D.'s National Provider Identifier (NPI) is 1578996872, issued on Aug 10, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Gil J. Grattan, PSY.D. located?

The NPPES record lists a practice address at 446 S Marengo Ave, Pasadena, CA, 91101. Phone: (818) 317-8866. Providers update this record themselves, so call before visiting.

How can I verify Gil J. Grattan, PSY.D.'s license?

NPPES lists California license number PSY25878, 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.