Quick answers
- Where does Robert W. Chang see patients?
- Medicare's clinician data lists 4 practice locations, including Redwood City, CA and South San Francisco, CA. Call before your visit to confirm the address.
- What is Robert W. Chang's specialty?
- Medicare lists Vascular Surgery as the primary specialty, and also Interventional Radiology and Peripheral Vascular Disease.
- Does Robert W. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Robert W. Chang 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 Robert W. Chang?
- (650) 299-2000, as listed in official Medicare / NPI Registry data.
- What is Robert W. Chang's NPI number?
- 1316059058. 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 Robert W. Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 1100 Veterans BlvdRedwood City, CA 94063 (650) 299‑2000
- 1150 Veterans BlvdRedwood City, CA 94063 (650) 299‑2000
- 1190 Veterans BlvdRedwood City, CA 94063 (650) 299‑2000
- 1200 El Camino RealSouth San Francisco, CA 94080 (650) 742‑2000
Group practices
Medicare enrollment lists Robert W. Chang as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
Other vascular surgeons in Redwood City
Clinicians with the same Medicare primary specialty in Redwood City, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316059058 |
| 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