Kenneth Chan, MD
NPI 1912091919 · Internal Medicine Physician · San Francisco, CA
Kenneth Chan, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1912091919).
Provider details
- NPI number
- 1912091919
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G42953 (CA)
Specialties & taxonomies
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
19 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
- 2006-10-03
- Last updated
- 2012-01-27
Frequently asked questions
- What is Kenneth Chan's NPI number?
- Kenneth Chan's National Provider Identifier (NPI) is 1912091919, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kenneth Chan's specialty?
- Kenneth Chan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kenneth Chan located?
- Kenneth Chan's practice location on file with NPPES is 789 Vallejo St, San Francisco, CA 94133-3834.
- What is Kenneth Chan's phone number?
- The practice phone number listed in the NPPES registry for Kenneth Chan is (415) 982-6691.
- Is Kenneth Chan's NPI active?
- Yes — Kenneth Chan's NPI (1912091919) is active in the NPPES registry as of the last update on 2012-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.