NPPES file of Aug 9, 2026

Radiation Oncology Physician in Washington

198 NPPES records list radiation oncology physician with a practice address in Washington, 2.5 per 100,000 residents, the 10th highest rate of 51. Seattle and Tacoma have the most; each record links to the provider's NPI and the Washington license search. Page 3 of 4.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085R0001X · 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, 97

  1. Seattle97
  2. Tacoma10
  3. Kennewick8
  4. Spokane Valley8
  5. Vancouver8

Radiation Oncology Physician records in Washington

  1. Berit Madsen, MDPoulsbo, WA 983701164518841
  2. Lisa Maestas, D.O.Spokane Valley, WA 992161033114160
  3. Sue Mandell, MDKennewick, WA 993361578668406
  4. Dean Mastras, MDGig Harbor, WA 983321487625851
  5. Tim Mate, M.D.Seattle, WA 981041699798439
  6. Nina Mayr, MDSeattle, WA 981951952409773
  7. Annaliisa McGlinn, MDSeattle, WA 981091063506590
  8. Shauna McVorran, MDSeattle, WA 981951730564154
  9. Vivek Mehta, M.D.Seattle, WA 981041417970252
  10. Robert Meier, M.D.Seattle, WA 981331215950704
  11. Omar Mian, MD, PHDSeattle, WA 981091013209550
  12. Hiroki Mitsuyama, MDSeattle, WA 981011164488086
  13. Astrid Morris, M.D.Seattle, WA 981041194739755
  14. Lawrence MulkerinSeattle, WA 981951194800904
  15. Thomas Mullen, MD, PHDSilverdale, WA 983831053673202
  16. Thomas Neumann, M.D.Bellingham, WA 982251841271574
  17. Katarina Nguyen, MDSeattle, WA 981951740817964
  18. Lisa Ni, MDSeattle, WA 981951760944235
  19. Muneeb Niazi, DOSeattle, WA 981951144782210
  20. Zachary Oaks, MDPuyallup, WA 983731457841157
  21. Neil Panjwani, M.D.Seattle, WA 981951871026294
  22. Upendra Parvathaneni, MBBSSeattle, WA 981951588764781
  23. Shilpen Patel, MDSeattle, WA 981951073693685
  24. Arun Paul, MDSeattle, WA 981951376898411
  25. James PeltonBellingham, WA 982251558449918
  26. Anthony Pham, MDPoulsbo, WA 983701508251000
  27. Huong Pham, MDSeattle, WA 981011285727545
  28. Ann Pittier, MDTacoma, WA 984051306950894
  29. Alexei Polishchuk, M.D.Bellingham, WA 982261295021921
  30. Amber Post, M.D. PH.D.Seattle, WA 981011801053053
  31. Christopher Premo, MDTacoma, WA 984311912291782
  32. Jamiluddin Qazi, MDVancouver, WA 986841932786514
  33. Shushan Rana, MDVancouver, WA 986641487091260
  34. James Raymond, M.D.Lacey, WA 985031528045853
  35. William Reece, M.D.Tacoma, WA 984311679543789
  36. Sheila Rege, MDKennewick, WA 993361003890336
  37. John Register, MDWenatchee, WA 988011124048368
  38. Steven Register, M.D.Yakima, WA 989021245460252
  39. Ramesh Rengan, MD. PHDSeattle, WA 981331801981428
  40. Kristen Riegert, MDWalla Walla, WA 993621164658209
  41. John Rieke, M.D.Mercer Island, WA 980401811934425
  42. Paul Riviere, MDSeattle, WA 981951710514013
  43. Jason RockhillSeattle, WA 981951255416079
  44. Andrew Roehrig, MDKennewick, WA 993361225526890
  45. Kenneth RussellSeattle, WA 981091851477509
  46. Kevin Sanders, MDPuyallup, WA 983731376554154
  47. Reith Sarkar, MDSeattle, WA 981041679034060
  48. Stephanie Schaub, M.D.Seattle, WA 981951487035747
  49. Scott Schneider, M.D.Vancouver, WA 986841336142926
  50. Paula Schomberg, M.D.Spokane, WA 992041245218536

Source: CMS NPPES, primary taxonomy 2085R0001X: records by practice city and the list of records, file of Aug 9, 2026.

Washington ranks 10 of 51 per resident

  1. Oregon2.7
  2. Rhode Island2.6
  3. Wisconsin2.6
  4. Washington2.5
  5. Ohio2.5
  6. South Dakota2.4
  7. 50 states and D.C.2.1

Source: CMS NPPES, primary taxonomy 2085R0001X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.3% of these records appear in a Medicare file, against 82.3% 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. Washington80.3%
  2. United States82.3%

Radiation Oncology Physician records in Washington, measured

  • In a Medicare file159 of 198 · 80.3% here, 82.3% nationally
  • In the CMS Doctors and Clinicians file141 · 71.2% here, 74.0% nationally
  • Not updated in five years or more115 · 58.1% here, 54.6% nationally
  • Median graduation year2006 · the 141 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085R0001X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

198 NPPES records list radiation oncology physician (2085R0001X) as their primary taxonomy with a practice address in Washington: 2.5 per 100,000 residents against 2.1 nationally (50 states and D.C.). Seattle has 97 of them (49%).

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. Georgia180
  2. North Carolina230
  3. Minnesota160
  4. Michigan239

States with a similar rate per 100,000

  1. Ohio2.5
  2. Wisconsin2.6
  3. Rhode Island2.6
  4. South Dakota2.4

The largest states

  1. California735
  2. Florida520
  3. New York449
  4. Texas449
  5. Pennsylvania383

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.