Thomas Allems, MD
NPI 1669562930 · Occupational Medicine Physician · San Francisco, CA
Thomas Allems, MD is a Occupational Medicine Physician provider in San Francisco, CA (NPI 1669562930).
Provider details
- NPI number
- 1669562930
- Entity type
- Individual
- Primary specialty
- Occupational Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A43491 (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
- 2006-10-14
- Last updated
- 2025-09-11
Frequently asked questions
- What is Thomas Allems's NPI number?
- Thomas Allems's National Provider Identifier (NPI) is 1669562930, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Allems's specialty?
- Thomas Allems is listed in the NPPES registry with a primary specialty of Occupational Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Allems located?
- Thomas Allems's practice location on file with NPPES is 311 California St, San Francisco, CA 94104-2602.
- What is Thomas Allems's phone number?
- The practice phone number listed in the NPPES registry for Thomas Allems is (415) 989-5339.
- Is Thomas Allems's NPI active?
- Yes — Thomas Allems's NPI (1669562930) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.