NPPES file of Aug 9, 2026

Alejandro Leonides Yambing Perez, M.D.

Forensic Psychiatry Physician · Atascadero, CA

Alejandro Leonides Yambing Perez, M.D. is a forensic psychiatry physician with a practice address in Atascadero, California, and NPI 1275951832, issued on Apr 1, 2014. Check the license (California A137765, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275951832
Name
Alejandro Leonides Yambing Perez
Credential
M.D.
Primary taxonomy
Forensic Psychiatry Physician 2084F0202X
License number
A137765 CA
Self-reported in NPPES; status is on the state search
Practice location
10333 EL Camino Real, Atascadero, CA 93422
Phone
(805) 468-2000
Enumerated
Apr 1, 2014
Record last updated
Jan 11, 2022
Medicare enrollment
Enrolled (PECOS I20171121002754); may accept Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 10333 EL Camino Real

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

  1. Joseph Abrahamson, MDForensic Psychiatry Physician1750309423
  2. Ajibade Adeladan, MDPsychiatry Physician1013178763
  3. Henry Ahlstrom, PH.D.Clinical Psychologist1619945870
  4. Moghees AhmedPsychiatry Physician1124333125
  5. Hossein Akhavan, M.D.Internal Medicine Physician1871779942
  6. Paula Aloi, PSYDClinical Psychologist1306134630

Verify Alejandro Leonides Yambing Perez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A137765
    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
Open the California license search

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94% fewer Medicare Part D claims than the average forensic psychiatry physician in 2024

52 Medicare Part D claims for 15 beneficiaries, against an average of 803 among the 199 providers of this specialty who prescribed in Part D.

  1. Alejandro Perez52
  2. Specialty average803

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $116.78

1 payment: food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 80 providers of this specialty with any payment received $832.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alejandro Perez$116.78
  2. Specialty average$832.36

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Department OF State HospitalsAtascadero, CA
  2. Evolve Psychiatry MD, Inc.Frisco, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alejandro Leonides Yambing Perez among 109 forensic psychiatry physician records in California

Alejandro Leonides Yambing Perez, M.D. is one of 109 forensic psychiatry physician records with a practice address in California. 41% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 88% of them.

  • NPI issued2014 · 88% of these records are older, 10% newer
  • In a Medicare fileYes · 41% of these records are
  • In the CMS Doctors and Clinicians fileYes · 14% of these records are
  • Graduated2014 · median 1997 among the 15 with a school on file
  • Record last updated2022 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084F0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 forensic psychiatry physician records list a practice address in Atascadero

They are 20 of the 992 NPPES records with a practice address in Atascadero, and 109 forensic psychiatry physician records in California.

The 8 forensic psychiatry physician records with the nearest ZIP codes

  1. Joseph Abrahamson, MDAtascadero, CA 934221750309423
  2. Michael Arcuri, M.D.Atascadero, CA 934221861564296
  3. Jeffrey Billett, M.D.Atascadero, CA 934221790889749
  4. Seth Cohen, M.D.Atascadero, CA 934221386748762
  5. David Henderson, M.D.Atascadero, CA 934221346400249
  6. Justin Jones, M.D.Atascadero, CA 934221760772164
  7. Steven Lazrove, MDAtascadero, CA 934221225164262
  8. Lynn MaskelAtascadero, CA 934221134350549

Common questions

What is Alejandro Leonides Yambing Perez, M.D.'s NPI number?

Alejandro Leonides Yambing Perez, M.D.'s National Provider Identifier (NPI) is 1275951832, issued on Apr 1, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Alejandro Leonides Yambing Perez, M.D. located?

The NPPES record lists a practice address at 10333 EL Camino Real, Atascadero, CA, 93422. Phone: (805) 468-2000. Providers update this record themselves, so call before visiting.

How can I verify Alejandro Leonides Yambing Perez, M.D.'s license?

NPPES lists California license number A137765, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alejandro Leonides Yambing Perez, M.D. prescribe under Medicare Part D?

In 2024, Alejandro Leonides Yambing Perez, M.D. had 52 Medicare Part D claims for 15 beneficiaries; the average among forensic psychiatry physician prescribers was 803. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.