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 10 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. Gideon SteinbachSeattle, WA 981091760568497
  2. Dana Stiner, M.D.Bellingham, WA 982261235135674
  3. Lee Stone, MDSpokane, WA 992041073584314
  4. Robert Sudduth, M.D.Silverdale, WA 983831184651192
  5. Jason Sugar, MDTacoma, WA 984051558572651
  6. Haozhe Sun, MDEnumclaw, WA 980221750802666
  7. John Sun, MDTacoma, WA 984051972681500
  8. Nicholas Sun, D.O.Puyallup, WA 983711336357433
  9. Christina SurawiczSeattle, WA 981041629158522
  10. Sophia Swanson, M.D.Seattle, WA 981221831498203
  11. Katya Swarts, MDBellevue, WA 980041588291587
  12. Rinad Tabbalat, MDBellingham, WA 982261609392059
  13. Wataru Tamura, MDSeattle, WA 981331073658365
  14. Christopher Bryan Tan, M.D.Yakima, WA 989021275765810
  15. Dengda Tang, MDVancouver, WA 986641467447821
  16. Darik Taniguchi, M.D.Seattle, WA 981331750359105
  17. Gary Taubman, M.D.Tacoma, WA 984051639144264
  18. Justin Taylor, M.D.Renton, WA 980551518288083
  19. Harry Teicher, MDSeattle, WA 981221821086174
  20. Adam Templeton, M.D.Seattle, WA 981951285868802
  21. Brandon Teng, MDRenton, WA 980551336589282
  22. Frank Thomas, MDRenton, WA 980551952483943
  23. Ashley Thompson, MDSeattle, WA 981091265926646
  24. Michelle Thompson, D.O.Olympia, WA 985021851684765
  25. Nundhini Thukkani, MDVancouver, WA 986641619185527
  26. Supisara Tintara, MDSpokane, WA 992081790344893
  27. Richard Tobin, MDSeattle, WA 981331700857547
  28. Jane Todaro, MDSeattle, WA 981041295722783
  29. Jeffrey Tokar, M.D.Tacoma, WA 984051578537841
  30. Yutaka Tomizawa, M.D.Seattle, WA 981041386962900
  31. Stacy Tong, M.D.Moses Lake, WA 988371578729349
  32. Peter Torelli, MDSeattle, WA 981071992846422
  33. Ziga Tretjak, MDRichland, WA 993521033186325
  34. Sittilerk Trikalsaransukh, M.D.Kennewick, WA 993361649301961
  35. Catherine Tsai, MDSpokane, WA 992081356337935
  36. Amy Tsuchida, MDTacoma, WA 984051821075011
  37. Bruce Tung, MDSeattle, WA 981221396820114
  38. Craig Tuohy, MDEnumclaw, WA 980221225043086
  39. Shie-Pon Tzung, MD PHDBellevue, WA 980041023096252
  40. Alan Urbina Alvarez, M.D.Lakewood, WA 984991316389711
  41. Amar Vedamurthy, M.B.B.S M.S.Seattle, WA 981011114272283
  42. Nanda Venu, M.D.Seattle, WA 981011013135912
  43. Nicolas Villa Guillen, M.D.Spokane, WA 992041265696553
  44. Kalyan Wadwa, MDMount Vernon, WA 982741730260761
  45. Kathryne Wagner, MDOlympia, WA 985061740261817
  46. James Wagonfeld, M.D.Tacoma, WA 984051861467458
  47. Donald Wakelin, MDAnacortes, WA 982211790820546
  48. Jerome Waldbaum, MDEverett, WA 982031689610602
  49. James Wang, M.D.Everett, WA 982011376606194
  50. Lillian Wang, MDTacoma, WA 984061124523014

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.