Quick answers
- Where does Crystal Chan see patients?
- Medicare's clinician data lists 1 practice location in Oakley, CA. Call before your visit to confirm the address.
- What is Crystal Chan's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Crystal Chan accept Medicare assignment?
- Yes. Medicare's clinician data says Crystal Chan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Crystal Chan?
- (925) 776-8200, as listed in official Medicare / NPI Registry data.
- What is Crystal Chan's NPI number?
- 1629781703. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Crystal Chan is enrolled with Medicare (CMS data updated 2026-10-02).
- 2021 Main StOakley, CA 94561 (925) 776‑8200
Group practices
Medicare enrollment lists Crystal Chan as a member of this group (CMS data updated 2026-10-02).
- La Clinica de la Raza Inc130 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Medical school | Touro Un College Of Osteopathic Medicine, Vallejo |
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629781703 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians