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Thomas Factor, DDS
NPI 1891815510 · Endodontics · San Francisco, CA
Thomas Factor, DDS is a Endodontics provider in San Francisco, CA (NPI 1891815510).
Provider details
- NPI number
- 1891815510
- Entity type
- Individual
- Primary specialty
- EndodonticsDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 263408 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(89/100 index)
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
3100 19th Ave
San Francisco, CA 94132-2006
Phone: (415) 584-2537
Street-level locationGet directions
Mailing address
366 Dolan Ave
Mill Valley, CA 94941-3824
Registry dates
- Enumerated
- 2007-03-29
- Last updated
- 2021-10-15
- Certified
- 2021-10-15
Frequently asked questions
- What is Thomas Factor's NPI number?
- Thomas Factor's National Provider Identifier (NPI) is 1891815510, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Factor's specialty?
- Thomas Factor is listed in the NPPES registry with a primary specialty of Endodontics (Dental Providers).
- Where is Thomas Factor located?
- Thomas Factor's practice location on file with NPPES is 3100 19th Ave, San Francisco, CA 94132-2006.
- What is Thomas Factor's phone number?
- The practice phone number listed in the NPPES registry for Thomas Factor is (415) 584-2537.
- Is Thomas Factor's NPI active?
- Yes — Thomas Factor's NPI (1891815510) is active in the NPPES registry as of the last update on 2021-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.