Eric Kwok, M.D.
NPI 1447231618 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Kwok, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1447231618).
Provider details
- NPI number
- 1447231618
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A24444 (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
20 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
- 2005-11-07
- Last updated
- 2010-07-07
Frequently asked questions
- What is Eric Kwok's NPI number?
- Eric Kwok's National Provider Identifier (NPI) is 1447231618, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Kwok's specialty?
- Eric Kwok is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Kwok located?
- Eric Kwok's practice location on file with NPPES is 3838 California St, San Francisco, CA 94118-1522.
- What is Eric Kwok's phone number?
- The practice phone number listed in the NPPES registry for Eric Kwok is (415) 387-1534.
- Does Eric Kwok accept Medicare?
- Eric Kwok is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Kwok's NPI active?
- Yes — Eric Kwok's NPI (1447231618) is active in the NPPES registry as of the last update on 2010-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.