Siyuan Liu, MD, PHD
NPI 1316406317 · Radiation Oncology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siyuan Liu, MD, PHD is a Radiation Oncology Physician provider in San Francisco, CA (NPI 1316406317).
Provider details
- NPI number
- 1316406317
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- A180710 (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
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 (1)
- 2425 Geary Blvd # M115San Francisco, CA 94115-3358Phone: (415) 833-9182
Registry dates
- Enumerated
- 2019-03-19
- Last updated
- 2025-04-07
- Certified
- 2025-04-07
Frequently asked questions
- What is Siyuan Liu's NPI number?
- Siyuan Liu's National Provider Identifier (NPI) is 1316406317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siyuan Liu's specialty?
- Siyuan Liu is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Siyuan Liu located?
- Siyuan Liu's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.
- What is Siyuan Liu's phone number?
- The practice phone number listed in the NPPES registry for Siyuan Liu is (415) 353-7175.
- Does Siyuan Liu accept Medicare?
- Siyuan Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siyuan Liu's NPI active?
- Yes — Siyuan Liu's NPI (1316406317) is active in the NPPES registry as of the last update on 2025-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.