Sivan Marcus, MD
NPI 1184251720 · Anesthesiology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sivan Marcus, MD is a Anesthesiology Physician provider in San Francisco, CA (NPI 1184251720).
Provider details
- NPI number
- 1184251720
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A188040 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 513 Parnassus Ave Ste S221San Francisco, CA 94143-2205Phone: (415) 264-9316
- 300 Pasteur DrStanford, CA 94305-2200Phone: (650) 723-4000
Registry dates
- Enumerated
- 2020-03-24
- Last updated
- 2026-06-01
- Certified
- 2026-06-01
Frequently asked questions
- What is Sivan Marcus's NPI number?
- Sivan Marcus's National Provider Identifier (NPI) is 1184251720, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sivan Marcus's specialty?
- Sivan Marcus is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Sivan Marcus located?
- Sivan Marcus's practice location on file with NPPES is 521 Parnassus Ave Fl 4, San Francisco, CA 94143-2206.
- What is Sivan Marcus's phone number?
- The practice phone number listed in the NPPES registry for Sivan Marcus is (415) 514-7952.
- Does Sivan Marcus accept Medicare?
- Sivan Marcus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sivan Marcus's NPI active?
- Yes — Sivan Marcus's NPI (1184251720) is active in the NPPES registry as of the last update on 2026-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.