Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Cynthia Maria Leong Chan, P.A.
Physician Assistant in Alhambra, CA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285636787
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Registry record
Entity type Individual (Type 1)
Name Ms. Cynthia Maria Leong Chan
Credential P.A.
Sex Female
Practice address 333 S Garfield Ave, Suite A, Alhambra, CA, 91801
Phone (626) 289-7333
Fax (626) 289-6599
Enumeration date Aug 15, 2005
Last updated in NPPES Feb 24, 2010
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA 15539 (CA) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is NPI 1285636787 active?
Yes, as of the latest NPPES snapshot, NPI 1285636787 is active (record last updated 2010-02-24).
How do I verify Cynthia Chan's NPI record?
Cross-check NPI 1285636787 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Garfield Comprehensive Care Medical Corp Internal Medicine Physician · Alhambra, CA NPI 1851393862 Eddie Lam Internal Medicine Physician · Alhambra, CA NPI 1518969971 Max Pharmacy Inc Community/Retail Pharmacy · Alhambra, CA NPI 1699786194 Yanyou Li Primary Care Nurse Practitioner · Alhambra, CA NPI 1700130705
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-24.