Quick answers
- Where does Sivan G. Marcus see patients?
- Medicare's clinician data lists 4 practice locations, including San Francisco, CA and Palo Alto, CA. Call before your visit to confirm the address.
- What is Sivan G. Marcus's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Sivan G. Marcus accept Medicare assignment?
- Medicare's clinician data says Sivan G. Marcus may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Sivan G. Marcus's NPI number?
- 1184251720. 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 Sivan G. Marcus is enrolled with Medicare (CMS data updated 2026-10-02).
- 2001 the Emarcadero, Suite 1500San Francisco, CA 94143
- 2001 the Embarcadero, Suite 1500San Francisco, CA 94143
- 2001 the Embarcadero St, Suite 1500San Francisco, CA 94133
- 500 Pasteur DrPalo Alto, CA 94304
Specialties
- Anesthesiologyprimary
Other anesthesiologists in San Francisco
Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1184251720 |
| 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