Colleen Annesley, M.D.
NPI 1164661427 · Pediatric Hematology & Oncology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Annesley, M.D. is a Pediatric Hematology & Oncology Physician provider in Seattle, WA (NPI 1164661427).
Provider details
- NPI number
- 1164661427
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- TRN10518 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
17 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
- 2009-02-10
- Last updated
- 2019-01-16
Frequently asked questions
- What is Colleen Annesley's NPI number?
- Colleen Annesley's National Provider Identifier (NPI) is 1164661427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Annesley's specialty?
- Colleen Annesley is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Colleen Annesley located?
- Colleen Annesley's practice location on file with NPPES is Seattle Children'S Hospital, Seattle, WA 98105.
- What is Colleen Annesley's phone number?
- The practice phone number listed in the NPPES registry for Colleen Annesley is (062) 987-2000.
- Does Colleen Annesley accept Medicare?
- Colleen Annesley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Annesley's NPI active?
- Yes — Colleen Annesley's NPI (1164661427) is active in the NPPES registry as of the last update on 2019-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.