NPPES file of Aug 9, 2026

Ivan West Greenspan, PSY.D.

Clinical Psychologist · Sherman Oaks, CA

Ivan West Greenspan, PSY.D. is a clinical psychologist with a practice address in Sherman Oaks, California, and NPI 1013154301, issued on Jan 8, 2009. Check the license (California PSY18686, 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
1013154301
Name
Ivan West Greenspan
Credential
PSY.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
PSY18686 CA
Self-reported in NPPES; status is on the state search
Practice location
4849 Van Nuys Blvd, Sherman Oaks, CA 91403
Phone
(818) 970-3172
Enumerated
Jan 8, 2009
Record last updated
Jan 8, 2009 (not updated in 17 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 4849 Van Nuys Blvd

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

  1. Sean Aldridge, M.D.Internal Medicine Physician1891177481
  2. Neila Berton, PH.D.Clinical Psychologist1851300016
  3. Gina Chuang, L.A.CAcupuncturist1831170786
  4. Patrick Le, PA-CPhysician Assistant1225494644
  5. Joshua Rosenberg, MDFamily Medicine Physician1770226680
  6. Ali Sheybani, M.D.Internal Medicine Physician1427006824

Verify Ivan West Greenspan 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 PSY18686
    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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70 clinical psychologist records list a practice address in Sherman Oaks

They are 70 of the 2,691 NPPES records with a practice address in Sherman Oaks, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other clinical psychologist records in California

  1. Tanya Aaen, PH.D.Martinez, CA1477518561
  2. Jack Aamot, PSY.D.Napa, CA1770711210
  3. Brian Abary, PSY.DLos Angeles, CA1538354832
  4. Tatevik Abaryan, PH.D.Pacoima, CA1952682619
  5. Liana Abascal, PH.D.San Diego, CA1073740569
  6. Jessica Abdalla, PHDWalnut Creek, CA1558069211
  7. Mohamed Abdallah, PSY.DEl Centro, CA1912430851
  8. Megan Abdolrashidi, PSYDGilroy, CA1093293094
  9. Keri Abdullah, PH.D.San Diego, CA1699840587
  10. Qutayba Abdullatif, PH.D.Pasadena, CA1134667751

Common questions

What is Ivan West Greenspan, PSY.D.'s NPI number?

Ivan West Greenspan, PSY.D.'s National Provider Identifier (NPI) is 1013154301, issued on Jan 8, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Ivan West Greenspan, PSY.D. located?

The NPPES record lists a practice address at 4849 Van Nuys Blvd, Sherman Oaks, CA, 91403. Phone: (818) 970-3172. Providers update this record themselves, so call before visiting.

How can I verify Ivan West Greenspan, PSY.D.'s license?

NPPES lists California license number PSY18686, 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.