NPPES file of Aug 9, 2026

Gastroenterology Physician in Washington

533 NPPES records list gastroenterology physician with a practice address in Washington, 6.8 per 100,000 residents, the 12th highest rate of 51. Seattle and Tacoma have the most; each record links to the provider's NPI and the Washington license search. Page 11 of 11.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RG0100X · 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, 161

  1. Seattle161
  2. Tacoma44
  3. Spokane37
  4. Everett31
  5. Vancouver26

Gastroenterology Physician records in Washington

  1. Linda Wang, MDEverett, WA 982011730747601
  2. Paul Warfield, M.D.Moses Lake, WA 988371841206422
  3. Duane Webb, MDSequim, WA 983821881637742
  4. Nicholas Weber, MDOlympia, WA 985061164544953
  5. Steven Wegley, MDSeattle, WA 981331750352035
  6. Robert Williams, MDYakima, WA 989021013931914
  7. Richard Willson, MDSeattle, WA 981191881032423
  8. Jaime Wilson-Chiru, M.D.Vancouver, WA 986641417196833
  9. Remington Winter, MDWenatchee, WA 988011861310716
  10. Todd Witte, M.D.Bellingham, WA 982251093847949
  11. Colin Wolslegel, D.O.Port Angeles, WA 983621982990297
  12. Alina Wong, MDIssaquah, WA 980291023436938
  13. Banny Wong, MDVancouver, WA 986841972724227
  14. Siew Wong, M.D.Kennewick, WA 993361336387356
  15. Vaew Wongsurawat, M.D.Bellevue, WA 980041790836732
  16. Stephen Woods, M.D.Bellingham, WA 982251598722423
  17. Andrew Woolf, D.OSpokane, WA 992041346632643
  18. Meimin Xie, MDOlympia, WA 985061144379918
  19. Kazunori Yamamoto, M.D.Tacoma, WA 984931780788794
  20. Hoyeol Yang, M.D.Richland, WA 993521396720272
  21. Eric Yap, MDBellevue, WA 980041639254279
  22. Yuen Yee, MDSilverdale, WA 983831457488371
  23. Ronald Yeh, MDKirkland, WA 980341033162334
  24. Roy Yen, MDRenton, WA 980551073795597
  25. Lei Yu, MDSeattle, WA 981951215048509
  26. Qing Yu, MDVancouver, WA 986861871755322
  27. Tony Yusuf, M.D.Moses Lake, WA 988371366458309
  28. Lawrence Zawatzky, M.D.Walla Walla, WA 993621811961832
  29. Ningxin Zeng, MDKennewick, WA 993361376595637
  30. Kristine Zhang, MDOlympia, WA 985061841301090
  31. Qing Zhang, MD PHDSeattle, WA 981011477741759
  32. Jasmine Zia, MDSeattle, WA 981041093826257
  33. Timothy Zisman, MD, MPHSeattle, WA 981011427213461

Source: CMS NPPES, primary taxonomy 207RG0100X: records by practice city and the list of records, file of Aug 9, 2026.

Washington ranks 12 of 51 per resident

  1. New Jersey7.9
  2. New Hampshire7.8
  3. Illinois7.1
  4. Washington6.8
  5. Florida6.7
  6. Missouri6.7
  7. 50 states and D.C.6.2

Source: CMS NPPES, primary taxonomy 207RG0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

76.4% of these records appear in a Medicare file, against 84.4% 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. Washington76.4%
  2. United States84.4%

Gastroenterology Physician records in Washington, measured

  • In a Medicare file407 of 533 · 76.4% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file374 · 70.2% here, 73.7% nationally
  • Not updated in five years or more316 · 59.3% here, 55.6% nationally
  • Median graduation year2003 · the 373 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RG0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

533 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Washington: 6.8 per 100,000 residents against 6.2 nationally (50 states and D.C.). Seattle has 161 of them (30%).

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. Georgia530
  2. Virginia536
  3. Michigan550
  4. Maryland505

States with a similar rate per 100,000

  1. Florida6.7
  2. Missouri6.7
  3. Oregon6.6
  4. Illinois7.1

The largest states

  1. California2,140
  2. New York1,797
  3. Florida1,513
  4. Texas1,478
  5. Pennsylvania1,049

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.