NPPES file of Aug 9, 2026

Rosalyne Leong, PA-C

Medical Physician Assistant · Covina, CA

Rosalyne Leong, PA-C is a medical physician assistant with a practice address in Covina, California, and NPI 1306186101, issued on Feb 15, 2013. Check the license (California PA22789, 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
1306186101
Name
Rosalyne Leong
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA22789 CA
Self-reported in NPPES; status is on the state search
Practice location
236 W College St, Covina, CA 91723
Phone
(626) 938-1080
Enumerated
Feb 15, 2013
Record last updated
Feb 15, 2013 (not updated in 13 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 236 W College St

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

  1. Joanna AcostaPhysician Assistant1437620283
  2. Austin ChangPhysician Assistant1710526983
  3. James Kim, M.D.Interventional Pain Medicine Physician1649698481
  4. Jessica Kuo, MDPain Medicine (Anesthesiology) Physician1205465085
  5. Dharmesh Mehta, MDInterventional Pain Medicine Physician1114980760

Verify Rosalyne Leong 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 PA22789
    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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46% more Medicare Part D claims than the average medical physician assistant in 2024

1,671 Medicare Part D claims for 255 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 80 claims were for opioids.

  1. Rosalyne Leong1,671
  2. Specialty average1,148

Most prescribed

  1. Atorvastatin Calcium105 claims
  2. Levothyroxine Sodium87 claims
  3. Amlodipine Besylate63 claims
  4. Losartan Potassium58 claims
  5. Hydrocodone-Acetaminophen51 claims
  6. Lisinopril39 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.

Rosalyne Leong among 3,376 medical physician assistant records in California

Rosalyne Leong, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 54% of them.

  • NPI issued2013 · 54% of these records are older, 42% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2013 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Antonious Abraham, PA-CCovina, CA 917231003434275
  2. Sachi Ezaki, PA-CCovina, CA 917231821177254
  3. Catherine Harris, PA-CCovina, CA 917231447360979
  4. Blair Johnson, PACovina, CA 917231124082292
  5. Arturo Martinez, PACovina, CA 917231235154568
  6. Erin Prieto, PA-CCovina, CA 917231225410129
  7. Michael Ross, PACovina, CA 917231508820648
  8. Lauren Tatum, P.ACovina, CA 917231740601509

Common questions

What is Rosalyne Leong, PA-C's NPI number?

Rosalyne Leong, PA-C's National Provider Identifier (NPI) is 1306186101, issued on Feb 15, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Rosalyne Leong, PA-C located?

The NPPES record lists a practice address at 236 W College St, Covina, CA, 91723. Phone: (626) 938-1080. Providers update this record themselves, so call before visiting.

How can I verify Rosalyne Leong, PA-C's license?

NPPES lists California license number PA22789, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Rosalyne Leong, PA-C prescribe under Medicare Part D?

In 2024, Rosalyne Leong, PA-C had 1,671 Medicare Part D claims for 255 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.