Douglas Thierer, DO
NPI 1811075468 · Occupational Medicine Physician · South San Francisco, CA
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Thierer, DO is a Occupational Medicine Physician provider in South San Francisco, CA (NPI 1811075468).
Provider details
- NPI number
- 1811075468
- Entity type
- Individual
- Primary specialty
- Occupational Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A6998 (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
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
- 2006-11-01
- Last updated
- 2021-12-13
Frequently asked questions
- What is Douglas Thierer's NPI number?
- Douglas Thierer's National Provider Identifier (NPI) is 1811075468, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Thierer's specialty?
- Douglas Thierer is listed in the NPPES registry with a primary specialty of Occupational Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Thierer located?
- Douglas Thierer's practice location on file with NPPES is 1200 El Camino Real, South San Francisco, CA 94080-3208.
- What is Douglas Thierer's phone number?
- The practice phone number listed in the NPPES registry for Douglas Thierer is (650) 742-2000.
- Does Douglas Thierer accept Medicare?
- Douglas Thierer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Thierer's NPI active?
- Yes — Douglas Thierer's NPI (1811075468) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.