NPPES file of Aug 9, 2026

Leonardo Perez, PA

Physician Assistant · Santa Ana, CA

Leonardo Perez, PA is a physician assistant with a practice address in Santa Ana, California, and NPI 1457459547, issued on Sep 20, 2006. Check the license (California PA14221, as entered in NPPES) with the California board that licenses this profession; 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
1457459547
Name
Leonardo Perez
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
PA14221 CA
Self-reported in NPPES; status is on the state search
Practice location
1226 E Mcfadden Ave, Santa Ana, CA 92705
Phone
(714) 542-1331
Enumerated
Sep 20, 2006
Record last updated
Dec 4, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(714) 542-4758
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 1226 E Mcfadden Ave

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

  1. Sawitri Werasophon, M.D.General Practice Physician1447361209
  2. Somchai Werasophon, M.D.Obstetrics & Gynecology Physician1093881849

Verify Leonardo Perez 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 PA14221
    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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2.6 times the Medicare Part D claims of the average physician assistant in 2024

2,162 Medicare Part D claims for 203 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 13 claims were for opioids.

  1. Leonardo Perez2,162
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium134 claims
  2. Metformin Hcl98 claims
  3. Ozempic98 claims
  4. Losartan Potassium90 claims
  5. Rosuvastatin Calcium89 claims
  6. Amlodipine Besylate83 claims

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.

Leonardo Perez among 14,451 physician assistant records in California

Leonardo Perez, PA is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 87% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2007 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

124 physician assistant records list a practice address in Santa Ana

They are 124 of the 8,904 NPPES records with a practice address in Santa Ana, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Anne Castle, P.A.Santa Ana, CA 927051669424206
  2. Robert Cha, PASanta Ana, CA 927051710098165
  3. Tracy Dau, PASanta Ana, CA 927051104855105
  4. Jennifer Desby, PA-CSanta Ana, CA 927051740392026
  5. Carie Ellison, PA-CSanta Ana, CA 927051447496906
  6. Theresa Henry, P.A-CSanta Ana, CA 927051942316757
  7. Alysha Henry-Johnson, PA-CSanta Ana, CA 927051659519601
  8. Bonnie Huckaby, MPAS, PA-CSanta Ana, CA 927051932109204

Common questions

What is Leonardo Perez, PA's NPI number?

Leonardo Perez, PA's National Provider Identifier (NPI) is 1457459547, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Leonardo Perez, PA located?

The NPPES record lists a practice address at 1226 E Mcfadden Ave, Santa Ana, CA, 92705. Phone: (714) 542-1331. Providers update this record themselves, so call before visiting.

How can I verify Leonardo Perez, PA's license?

NPPES lists California license number PA14221, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Leonardo Perez, PA prescribe under Medicare Part D?

In 2024, Leonardo Perez, PA had 2,162 Medicare Part D claims for 203 beneficiaries; the average among physician assistant prescribers was 830. 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.