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Niels Andersen
NPI 1588996540 · Hematology & Oncology Physician · Seattle, WA
Niels Andersen is a Hematology & Oncology Physician provider in Seattle, WA (NPI 1588996540).
Provider details
- NPI number
- 1588996540
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- FE60122569 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
825 Eastlake Ave E
Seattle, WA 98109
Phone: (206) 288-6956
Street-level locationGet directions
Mailing address
4112, 2nd Ave Nw
Seattle, WA 98107
Registry dates
- Enumerated
- 2010-02-02
- Last updated
- 2010-02-02
Frequently asked questions
- What is Niels Andersen's NPI number?
- Niels Andersen's National Provider Identifier (NPI) is 1588996540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Niels Andersen's specialty?
- Niels Andersen is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Niels Andersen located?
- Niels Andersen's practice location on file with NPPES is 825 Eastlake Ave E, Seattle, WA 98109.
- What is Niels Andersen's phone number?
- The practice phone number listed in the NPPES registry for Niels Andersen is (206) 288-6956.
- Is Niels Andersen's NPI active?
- Yes — Niels Andersen's NPI (1588996540) is active in the NPPES registry as of the last update on 2010-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.