Neil Josephson, MD
NPI 1164508966 · Hematology & Oncology Physician · Seattle, WA
Neil Josephson, MD is a Hematology & Oncology Physician provider in Seattle, WA (NPI 1164508966).
Provider details
- NPI number
- 1164508966
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00031755 (WA)
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
- 2006-10-27
- Last updated
- 2008-12-12
Frequently asked questions
- What is Neil Josephson's NPI number?
- Neil Josephson's National Provider Identifier (NPI) is 1164508966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Neil Josephson's specialty?
- Neil Josephson is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Neil Josephson located?
- Neil Josephson's practice location on file with NPPES is 921 Terry Ave, Seattle, WA 98104-1239.
- What is Neil Josephson's phone number?
- The practice phone number listed in the NPPES registry for Neil Josephson is (206) 292-6570.
- Is Neil Josephson's NPI active?
- Yes — Neil Josephson's NPI (1164508966) is active in the NPPES registry as of the last update on 2008-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.