NPPES file of Aug 9, 2026

Jeff E. Oostyen, PSY.D.

Psychologist · Calipatria, CA

Jeff E. Oostyen, PSY.D. is a psychologist with a practice address in Calipatria, California, and NPI 1861821878, issued on Nov 11, 2013. Check the license (California PSY26998, 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
1861821878
Name
Jeff E. Oostyen
Credential
PSY.D.
Primary taxonomy
Psychologist 103T00000X
License number
PSY26998 CA
Self-reported in NPPES; status is on the state search
Practice location
7018 Blair RD, Calipatria, CA 92233
Phone
(760) 348-7000
Enumerated
Nov 11, 2013
Record last updated
Aug 24, 2023
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 7018 Blair RD

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

  1. Lisa Capobianco-Naranjoflores, ACSWStudent in an Organized Health Care Education/Training Program1376179887
  2. Catherine Carreon, PHARMDPharmacist1023489721
  3. Ashley Codding, PSY.D., LMFTMarriage & Family Therapist1609390657
  4. Cynthia Galaviz-Olivas, PSYDClinical Psychologist1750083697
  5. Mark Gannon, RPHPharmacist1023368784
  6. Vanessa GarciaMarriage & Family Therapist1760847495

Verify Jeff E. Oostyen 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 PSY26998
    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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2 psychologist records list a practice address in Calipatria

They are 2 of the 35 NPPES records with a practice address in Calipatria, and 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other psychologist records in California

  1. Alice Abarbanel, PH.D.Albany, CA1598095002
  2. Michael Abbott, PSYDModesto, CA1346498151
  3. Riley AbelesLos Angeles, CA1841861945
  4. Jenna Abell, PSYDLos Angeles, CA1073743969
  5. Sheri Abercrombie, PSY.D.San Diego, CA1932292422
  6. Tseday Aberra, PSY.D.Corona, CA1104026517
  7. Elham Abouhamzeh, PSY.DIrvine, CA1386092880
  8. Lilit Abraamyan-ChaidezBurbank, CA1710433289
  9. Mackenzie Abraham, PHDRedondo Beach, CA1881053833
  10. Sandra Abraham, PSYDSanta Fe Springs, CA1427467851

Common questions

What is Jeff E. Oostyen, PSY.D.'s NPI number?

Jeff E. Oostyen, PSY.D.'s National Provider Identifier (NPI) is 1861821878, issued on Nov 11, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Jeff E. Oostyen, PSY.D. located?

The NPPES record lists a practice address at 7018 Blair RD, Calipatria, CA, 92233. Phone: (760) 348-7000. Providers update this record themselves, so call before visiting.

How can I verify Jeff E. Oostyen, PSY.D.'s license?

NPPES lists California license number PSY26998, 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.