Crystal Chan
Physician Assistant · Oakley, CA
Crystal Chan is a physician assistant with a practice address in Oakley, California, and NPI 1629781703, issued on Jan 3, 2023. Check the license (California PA66621, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Crystal Chan
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA66621 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2021 Main St, Oakley, CA 94561
- Phone
- (925) 363-2000
- Enumerated
- Jan 3, 2023
- Record last updated
- Jul 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20250807002809); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2025
- Entity
- Type 1 · individual
Also registered at 2021 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Broome, PAPhysician Assistant1174962054
- Shuinn Chang, NPNurse Practitioner1003249244
- Yue FengFamily Medicine Physician1114902285
- Josephine Githua, NPFamily Medicine Physician1033589486
- Edward Kim, MDFamily Medicine Physician1124342977
- Christina Loeliger, FNPNurse Practitioner1356614762
Verify Crystal 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 PA66621Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Bills Medicare through one group practice
- LA Clinica DE LA Raza IncConcord, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
3 physician assistant records list a practice address in Oakley
They are 3 of the 197 NPPES records with a practice address in Oakley, and 14,451 physician assistant records in California.
All 3 in Oakley → All 14,451 in California → Every provider in Oakley →
Other physician assistant records in California
- Marcia -Galbraith, PAStockton, CA1407143274
- Danny Abad, PAOrange, CA1477158673
- Lea Dominique Abadies, PATustin, CA1124754254
- Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
- Ramina Abbasi, PA-CSignal Hill, CA1093448300
- Ariel Abbott, PA-CStockton, CA1780334342
- Barrie Abbott, PA-CAnza, CA1861602575
- Elizabeth Abbott, PA-CSan Diego, CA1437540762
- Terri Abbott, P.A.La Jolla, CA1811165566
- Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
Common questions
What is Crystal Chan's NPI number?
Crystal Chan's National Provider Identifier (NPI) is 1629781703, issued on Jan 3, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Crystal Chan located?
The NPPES record lists a practice address at 2021 Main St, Oakley, CA, 94561. Phone: (925) 363-2000. Providers update this record themselves, so call before visiting.
How can I verify Crystal Chan's license?
NPPES lists California license number PA66621, 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.