NPPES file of Aug 9, 2026

Ian Thomas Johansen, PH.D.

Clinical Psychologist · Cerritos, CA

Ian Thomas Johansen, PH.D. is a clinical psychologist with a practice address in Cerritos, California, and NPI 1558695718, issued on Sep 21, 2009. Check the license (California PSY22833, 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
1558695718
Name
Ian Thomas Johansen
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PSY22833 CA
Self-reported in NPPES; status is on the state search
Practice location
17215 Studebaker RD, Cerritos, CA 90703
Phone
(562) 860-2210
Enumerated
Sep 21, 2009
Record last updated
Sep 21, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(562) 860-1154
Medicare enrollment
Enrolled (PECOS I20110225000163); 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 17215 Studebaker RD

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

  1. Jean Bradshaw, MFT, M.S., M.A., CHTMarriage & Family Therapist1699927939
  2. Christine Desandre, PSY.D.Clinical Psychologist1013108547
  3. Kandi DudleyMarriage & Family Therapist1194845453
  4. Johnny Edrozo, M.D.Child & Adolescent Psychiatry Physician1134149024
  5. Michael Franc, PSYDClinical Psychologist1184915779
  6. Balasubramaniam Gulasekaram, M.D.Behavioral Neurology & Neuropsychiatry Physician1396709994

Verify Ian Thomas Johansen 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 PSY22833    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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Ian Thomas Johansen among 12,647 clinical psychologist records in California

Ian Thomas Johansen, 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 2009, is newer than 49% of them.

  • NPI issued2009 · 49% of these records are older, 46% newer
  • In a Medicare fileNo · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated2004 · median 2006 among the 2,424 with a school on file
  • 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).

17 clinical psychologist records list a practice address in Cerritos

They are 17 of the 1,842 NPPES records with a practice address in Cerritos, 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 Cerritos → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. J Burns, PHDCerritos, CA 907031164592788
  2. Christine Desandre, PSY.D.Cerritos, CA 907031013108547
  3. Gilberto Figueroa, PSB94025462Cerritos, CA 907031578683819
  4. Michael Franc, PSYDCerritos, CA 907031184915779
  5. David Hirohama, PH.D.Cerritos, CA 907031881912871
  6. Hsiang Ling Hsu, PSY. D.Cerritos, CA 907031528195047
  7. Tekesia Jackson, PSYDCerritos, CA 907031457418055
  8. William Johnson, PHDCerritos, CA 907031760810345

Common questions

What is Ian Thomas Johansen, PH.D.'s NPI number?

Ian Thomas Johansen, PH.D.'s National Provider Identifier (NPI) is 1558695718, issued on Sep 21, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Ian Thomas Johansen, PH.D. located?

The NPPES record lists a practice address at 17215 Studebaker RD, Cerritos, CA, 90703. Phone: (562) 860-2210. Providers update this record themselves, so call before visiting.

How can I verify Ian Thomas Johansen, PH.D.'s license?

NPPES lists California license number PSY22833, 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.