Pei Chen, MD
NPI 1295054948 · Geriatric Medicine (Internal Medicine) Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Pei Chen, MD is a Geriatric Medicine (Internal Medicine) Physician provider in San Francisco, CA (NPI 1295054948).
Provider details
- NPI number
- 1295054948
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 269237 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2010-05-20
- Last updated
- 2015-07-03
Frequently asked questions
- What is Pei Chen's NPI number?
- Pei Chen's National Provider Identifier (NPI) is 1295054948, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Pei Chen's specialty?
- Pei Chen is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Pei Chen located?
- Pei Chen's practice location on file with NPPES is 3575 Geary Blvd, San Francisco, CA 94118-3212.
- What is Pei Chen's phone number?
- The practice phone number listed in the NPPES registry for Pei Chen is (415) 353-4900.
- Does Pei Chen accept Medicare?
- Pei Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Pei Chen's NPI active?
- Yes — Pei Chen's NPI (1295054948) is active in the NPPES registry as of the last update on 2015-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.