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Jack Singer, MD
NPI 1750448940 · Hematology & Oncology Physician · Seattle, WA
Jack Singer, MD is a Hematology & Oncology Physician provider in Seattle, WA (NPI 1750448940).
Provider details
- NPI number
- 1750448940
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00012718 (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
Harborview Medical Center
325 9th Ave
Seattle, WA 98104
Phone: (206) 731-3000
Approximate (ZIP-level) locationGet directions
Mailing address
Po Box 50095
Seattle, WA 98145-5095
Registry dates
- Enumerated
- 2007-01-03
- Last updated
- 2009-03-10
Frequently asked questions
- What is Jack Singer's NPI number?
- Jack Singer's National Provider Identifier (NPI) is 1750448940, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Singer's specialty?
- Jack Singer is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Singer located?
- Jack Singer's practice location on file with NPPES is Harborview Medical Center, Seattle, WA 98104.
- What is Jack Singer's phone number?
- The practice phone number listed in the NPPES registry for Jack Singer is (206) 731-3000.
- Is Jack Singer's NPI active?
- Yes — Jack Singer's NPI (1750448940) is active in the NPPES registry as of the last update on 2009-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.