Jan Casimir Hofmann, M.D.
NPI 1083765747 · Internal Medicine Physician · San Francisco, CA
Jan Casimir Hofmann, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1083765747).
Provider details
- NPI number
- 1083765747
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 80401 (MA)
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
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
- 2007-01-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jan Casimir Hofmann's NPI number?
- Jan Casimir Hofmann's National Provider Identifier (NPI) is 1083765747, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jan Casimir Hofmann's specialty?
- Jan Casimir Hofmann is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jan Casimir Hofmann located?
- Jan Casimir Hofmann's practice location on file with NPPES is 2100 Webster St, San Francisco, CA 94115-2373.
- What is Jan Casimir Hofmann's phone number?
- The practice phone number listed in the NPPES registry for Jan Casimir Hofmann is (415) 923-3646.
- Is Jan Casimir Hofmann's NPI active?
- Yes — Jan Casimir Hofmann's NPI (1083765747) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.