Registry data as of Aug 27, 2026

Leon Altamirano, PSY.D.

Psychologist · San Marcos, CA

Leon Altamirano, PSY.D. is a psychologist with a practice address in San Marcos, California, and NPI 1619271517, issued on Jan 6, 2011. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1619271517
Name
Leon Altamirano
Credential
PSY.D.
Primary taxonomy
Psychologist 103T00000X
Practice location
150 Valpreda RD, San Marcos, CA 92069
Phone
(619) 890-3262
Enumerated
Jan 6, 2011
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 150 Valpreda RD

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

  1. Jannah Alaoui, CNM, RNAdvanced Practice Midwife1689908113
  2. Wais Alemi, MDFamily Medicine Physician1427305242
  3. Blanca Arias, LCSWClinical Social Worker1033223649
  4. Lynda Ariella, PHDClinical Psychologist1073518965
  5. Maria BanuelosCase Manager/Care Coordinator1720280589
  6. Robert Beavers, DMDDentist1982722930

Verify Leon Altamirano 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
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

One hospital or facility affiliation

  1. North County Health Project, Inc.San Marcos, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Psychologist providers in California

There are 7,178 psychologist records in California.

Other psychologist records in California

  1. Toni AbadFountain Valley, CA1518633106
  2. Alice Abarbanel, PH.D.Albany, CA1598095002
  3. Michael Abbott, PSYDModesto, CA1346498151
  4. Jenna Abell, PSYDLos Angeles, CA1073743969
  5. Tseday Aberra, PSY.D.Corona, CA1104026517
  6. Elham Abouhamzeh, PSY.DIrvine, CA1386092880
  7. Carine AbouseifSalinas, CA1760832224
  8. Mackenzie Abraham, PHDRedondo Beach, CA1881053833
  9. Twylla Abrahamson, PH.D.Auburn, CA1700815875
  10. Samantha Abram, BASan Francisco, CA1326540436

Common questions

What is Leon Altamirano, PSY.D.'s NPI number?

Leon Altamirano, PSY.D.'s National Provider Identifier (NPI) is 1619271517, issued on Jan 6, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Leon Altamirano, PSY.D. located?

The NPPES record lists a practice address at 150 Valpreda RD, San Marcos, CA, 92069. Phone: (619) 890-3262. Providers update this record themselves, so call before visiting.

How can I verify Leon Altamirano, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.