NPPES file of Aug 9, 2026

Pediatric Hematology & Oncology Physician in Washington

103 NPPES records list pediatric hematology & oncology physician with a practice address in Washington, 1.3 per 100,000 residents, the 13th highest rate of 50. Seattle and Spokane have the most; each record links to the provider's NPI and the Washington license search. Page 3 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2080P0207X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Seattle has the most, 87

  1. Seattle87
  2. Spokane7
  3. Tacoma7
  4. Oak Harbor1
  5. Shoreline1

Pediatric Hematology & Oncology Physician records in Washington

  1. Jennifer Wilkes, M.D.Seattle, WA 981051467659425
  2. Olatundun Williams, M.D.Seattle, WA 981091598082174
  3. Ann Woolfrey, M.D.Seattle, WA 981091821171489

Source: CMS NPPES, primary taxonomy 2080P0207X: records by practice city and the list of records, file of Aug 9, 2026.

Washington ranks 13 of 50 per resident

  1. New York1.5
  2. Rhode Island1.5
  3. Minnesota1.3
  4. Washington1.3
  5. Indiana1.2
  6. Wisconsin1.1
  7. 50 states and D.C.1.1

Source: CMS NPPES, primary taxonomy 2080P0207X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

35.9% of these records appear in a Medicare file, against 50.9% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Washington35.9%
  2. United States50.9%

Pediatric Hematology & Oncology Physician records in Washington, measured

  • In a Medicare file37 of 103 · 35.9% here, 50.9% nationally
  • In the CMS Doctors and Clinicians file20 · 19.4% here, 31.2% nationally
  • Not updated in five years or more67 · 65.0% here, 54.5% nationally
  • Median graduation year2012 · the 20 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080P0207X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

103 NPPES records list pediatric hematology & oncology physician (2080P0207X) as their primary taxonomy with a practice address in Washington: 1.3 per 100,000 residents against 1.1 nationally (50 states and D.C.). Seattle has 87 of them (84%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Michigan102
  2. Georgia101
  3. Missouri99
  4. Maryland93

States with a similar rate per 100,000

  1. Minnesota1.3
  2. Rhode Island1.5
  3. New York1.5
  4. Indiana1.2

The largest states

  1. California417
  2. Texas319
  3. New York289
  4. Pennsylvania218
  5. Massachusetts197

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.