Stephen Tarnoff
NPI 1699810481 · Geriatric Medicine (Family Medicine) Physician · Seattle, WA
Stephen Tarnoff is a Geriatric Medicine (Family Medicine) Physician provider in Seattle, WA (NPI 1699810481).
Provider details
- NPI number
- 1699810481
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- MD00017546 (WA)
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
- 2007-02-20
- Last updated
- 2025-09-11
Frequently asked questions
- What is Stephen Tarnoff's NPI number?
- Stephen Tarnoff's National Provider Identifier (NPI) is 1699810481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Tarnoff's specialty?
- Stephen Tarnoff is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Tarnoff located?
- Stephen Tarnoff's practice location on file with NPPES is 521 Wall St, Seattle, WA 98121-1524.
- What is Stephen Tarnoff's phone number?
- The practice phone number listed in the NPPES registry for Stephen Tarnoff is (206) 448-2370.
- Is Stephen Tarnoff's NPI active?
- Yes — Stephen Tarnoff's NPI (1699810481) 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.