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Nassim Assefi, MD
NPI 1558441055 · Internal Medicine Physician · Seattle, WA
Nassim Assefi, MD is a Internal Medicine Physician provider in Seattle, WA (NPI 1558441055).
Provider details
- NPI number
- 1558441055
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD00038668 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 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
2101 E Yesler Way
Suite 210
Seattle, WA 98122-5959
Phone: (206) 299-1937
Fax: (206) 299-1920
Street-level locationGet directions
Mailing address
2101 E Yesler Way
Seattle, WA 98122-5959
Registry dates
- Enumerated
- 2006-10-17
- Last updated
- 2011-10-04
Frequently asked questions
- What is Nassim Assefi's NPI number?
- Nassim Assefi's National Provider Identifier (NPI) is 1558441055, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nassim Assefi's specialty?
- Nassim Assefi is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nassim Assefi located?
- Nassim Assefi's practice location on file with NPPES is 2101 E Yesler Way, Seattle, WA 98122-5959.
- What is Nassim Assefi's phone number?
- The practice phone number listed in the NPPES registry for Nassim Assefi is (206) 299-1937.
- Is Nassim Assefi's NPI active?
- Yes — Nassim Assefi's NPI (1558441055) is active in the NPPES registry as of the last update on 2011-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.