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Thomas Armbruster, M.D.
NPI 1720204209 · Anesthesiology Physician · Oakland, CA
Thomas Armbruster, M.D. is a Anesthesiology Physician provider in Oakland, CA (NPI 1720204209).
Provider details
- NPI number
- 1720204209
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G62516 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3875 Telegraph Ave
Oakland, CA 94609-2428
Phone: (510) 547-2244
Fax: (415) 383-7142
Street-level locationGet directions
Mailing address
Po Box 398398
San Francisco, CA 94139-8398
Registry dates
- Enumerated
- 2007-04-17
- Last updated
- 2019-09-26
Frequently asked questions
- What is Thomas Armbruster's NPI number?
- Thomas Armbruster's National Provider Identifier (NPI) is 1720204209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Armbruster's specialty?
- Thomas Armbruster is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Armbruster located?
- Thomas Armbruster's practice location on file with NPPES is 3875 Telegraph Ave, Oakland, CA 94609-2428.
- What is Thomas Armbruster's phone number?
- The practice phone number listed in the NPPES registry for Thomas Armbruster is (510) 547-2244.
- Is Thomas Armbruster's NPI active?
- Yes — Thomas Armbruster's NPI (1720204209) is active in the NPPES registry as of the last update on 2019-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.