Cynthia Maria Leong Chan, P.A.
Physician Assistant · Alhambra, CA
Cynthia Maria Leong Chan, P.A. is a physician assistant with a practice address in Alhambra, California, and NPI 1285636787, issued on Aug 15, 2005. Check the license (California PA 15539, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cynthia Maria Leong Chan
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA 15539 CA
Self-reported in NPPES; status is on the state search - Practice location
- 333 S Garfield Ave, Alhambra, CA 91801
- Phone
- (626) 289-7333
- Enumerated
- Aug 15, 2005
- Record last updated
- Feb 24, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (626) 289-6599
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 333 S Garfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eddie Lam, M.D.Internal Medicine Physician1518969971
Verify Cynthia Maria Leong Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA 15539Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $58.57
3 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Cynthia Maria Leong Chan among 14,451 physician assistant records in California
Cynthia Maria Leong Chan, P.A. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 99% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2010 · 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).
75 physician assistant records list a practice address in Alhambra
They are 75 of the 1,802 NPPES records with a practice address in Alhambra, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Alhambra → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Cristina Aragon-Navarrete, PA-CAlhambra, CA 918011912159559
- Courtney Boucher, PA-CAlhambra, CA 918011033594536
- Tung Cheung, P.A.Alhambra, CA 918011992746010
- Eugene Delrosario, PAAlhambra, CA 918011720098874
- Sophia FongAlhambra, CA 918011578853180
- Huajun HeAlhambra, CA 918011437669397
- Jennifer Liu, PAAlhambra, CA 918011861913113
- Felicia Markham-Dickson, PA-CAlhambra, CA 918011164423422
Common questions
What is Cynthia Maria Leong Chan, P.A.'s NPI number?
Cynthia Maria Leong Chan, P.A.'s National Provider Identifier (NPI) is 1285636787, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Maria Leong Chan, P.A. located?
The NPPES record lists a practice address at 333 S Garfield Ave, Alhambra, CA, 91801. Phone: (626) 289-7333. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Maria Leong Chan, P.A.'s license?
NPPES lists California license number PA 15539, 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. 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.