Tomas Zillmann
NPI 1295888253 · Pediatrics Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tomas Zillmann is a Pediatrics Physician provider in San Francisco, CA (NPI 1295888253).
Provider details
- NPI number
- 1295888253
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- G86306 (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
- 2007-01-20
- Last updated
- 2025-10-07
- Certified
- 2025-10-07
Frequently asked questions
- What is Tomas Zillmann's NPI number?
- Tomas Zillmann's National Provider Identifier (NPI) is 1295888253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tomas Zillmann's specialty?
- Tomas Zillmann is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Tomas Zillmann located?
- Tomas Zillmann's practice location on file with NPPES is 350 Rhode Island St Ste 200, San Francisco, CA 94103-5188.
- What is Tomas Zillmann's phone number?
- The practice phone number listed in the NPPES registry for Tomas Zillmann is (415) 600-6240.
- Does Tomas Zillmann accept Medicare?
- Tomas Zillmann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tomas Zillmann's NPI active?
- Yes — Tomas Zillmann's NPI (1295888253) is active in the NPPES registry as of the last update on 2025-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.