NPPES file of Aug 9, 2026

Jean John Powers, PSY.D.

Clinical Child & Adolescent Psychologist · Martinez, CA

Jean John Powers, PSY.D. is a clinical child & adolescent psychologist with a practice address in Martinez, California, and NPI 1811122260, issued on May 28, 2009. Check the license 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
1811122260
Name
Jean John Powers
Credential
PSY.D.
Primary taxonomy
Clinical Child & Adolescent Psychologist 103TC2200X
Practice location
202 Glacier Dr, Martinez, CA 94553
Phone
(650) 740-4191
Enumerated
May 28, 2009
Record last updated
Nov 5, 2012 (not updated in 14 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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Also registered at 202 Glacier Dr

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

  1. Nafeesa Ahmad-Bey, MAMental Health Counselor1811190119
  2. Steven BlumMarriage & Family Therapist1104011212
  3. Catherine CahillMental Health Counselor1124454731
  4. Jessica CarterClinical Social Worker1285065987
  5. Nadine DonaldsonStudent in an Organized Health Care Education/Training Program1902467301
  6. Serena DotyMarriage & Family Therapist1730682147

Verify Jean John Powers in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
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Jean John Powers among 670 clinical child & adolescent psychologist records in California

Jean John Powers, PSY.D. is one of 670 clinical child & adolescent psychologist records with a practice address in California. 3% 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 2009, is newer than 45% of them.

  • NPI issued2009 · 45% of these records are older, 50% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • Record last updated2012 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Child & Adolescent Psychologist providers in California

There are 670 clinical child & adolescent psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical child & adolescent psychologist records with the nearest ZIP codes

  1. Heidi Perryman, PH.D.Lafayette, CA 945491619090172
  2. Steven Weintrob, PHDLafayette, CA 945491285787069
  3. Courtney LockNapa, CA 945581972254654
  4. Heather ChamberlainNapa, CA 945591518192483
  5. Shoshana Taubman, PSY.D.Orinda, CA 945631922211937
  6. Kristine FlemingPittsburg, CA 945651073148938
  7. Brandi Marcaletti, PH.D.Pleasanton, CA 945661700953825
  8. Eesha MarriPleasanton, CA 945661992626162

Common questions

What is Jean John Powers, PSY.D.'s NPI number?

Jean John Powers, PSY.D.'s National Provider Identifier (NPI) is 1811122260, issued on May 28, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Jean John Powers, PSY.D. located?

The NPPES record lists a practice address at 202 Glacier Dr, Martinez, CA, 94553. Phone: (650) 740-4191. Providers update this record themselves, so call before visiting.

How can I verify Jean John Powers, PSY.D.'s license?

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.