Lillian Peng, M.D.
NPI 1710636832 · Hospitalist Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lillian Peng, M.D. is a Hospitalist Physician provider in San Francisco, CA (NPI 1710636832).
Provider details
- NPI number
- 1710636832
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2022-03-23
- Last updated
- 2025-06-01
- Certified
- 2025-06-01
Frequently asked questions
- What is Lillian Peng's NPI number?
- Lillian Peng's National Provider Identifier (NPI) is 1710636832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lillian Peng's specialty?
- Lillian Peng is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Lillian Peng located?
- Lillian Peng's practice location on file with NPPES is 521 Parnassus Ave, San Francisco, CA 94143-2206.
- What is Lillian Peng's phone number?
- The practice phone number listed in the NPPES registry for Lillian Peng is (415) 476-1000.
- Does Lillian Peng accept Medicare?
- Lillian Peng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lillian Peng's NPI active?
- Yes — Lillian Peng's NPI (1710636832) is active in the NPPES registry as of the last update on 2025-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.