NPPES file of Aug 9, 2026

Medical Oncology Physician in Oregon

107 NPPES records list medical oncology physician with a practice address in Oregon, 2.5 per 100,000 residents, the 7th highest rate of 51. Portland and Bend have the most; each record links to the provider's NPI and the Oregon license search. Page 2 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RX0202X · method

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

Portland has the most, 66

  1. Portland66
  2. Bend7
  3. Eugene6
  4. Corvallis5
  5. Tualatin4

Medical Oncology Physician records in Oregon

  1. Keith Lanier, M.D.Portland, OR 972251295738821
  2. Rom Leidner, MDPortland, OR 972131801908702
  3. Dawn Lemanne, MDAshland, OR 975201871550822
  4. Stacy Lewis, MDPortland, OR 972251124021753
  5. Elizabeth Loggers, M.D., PH.D.Portland, OR 972391477523637
  6. Regan Look, M.D.Portland, OR 972271821091604
  7. Charles Lopez, M.D.Portland, OR 972391851473060
  8. Robert Lufkin, D.O.Portland, OR 972131013932854
  9. Alice Luknic, MDNewport, OR 973651598798191
  10. Shiuh-Wen Luoh, MDPortland, OR 972391619982113
  11. Jennifer Lycette, MDSeaside, OR 971381801847355
  12. Rosemarie Mannino, MDPortland, OR 972391649392135
  13. Gurusidda Manu, MBBSPortland, OR 972391083058374
  14. William Martin, MDBend, OR 977011356329106
  15. Aleksandra McLeod, M.D.Portland, OR 972161457564833
  16. Zahi Mitri, M.D.Portland, OR 972391942514476
  17. Christie Moore, D.O.Portland, OR 972251891727608
  18. Erin Nelli, D.O.Medford, OR 975041487869129
  19. Laura Newell, M.D.Portland, OR 972391477539203
  20. Ronald Ng, MDPortland, OR 972391164957544
  21. Onyekachi Ogbonna, M.D.Portland, OR 972101992090112
  22. Michael Oneil, MDRoseburg, OR 974711134103252
  23. David Page, M.D.Portland, OR 972131922241140
  24. Apurva Pandey, M.DPortland, OR 972101023351137
  25. Ravindra Patil, M.D., PHDSeaside, OR 971381386647923
  26. Guillaume Pegna, M.D.Portland, OR 972391841670361
  27. Kelly Perlewitz, MDNewberg, OR 971321508086067
  28. Naga Praneeth Raja, M.D.,Beaverton, OR 970061043508757
  29. Aruna Reddy, MDPortland, OR 972391679722607
  30. Shane Rogosin, MDOregon City, OR 970451447451794
  31. Janet Ruzich, DOClackamas, OR 970151508869140
  32. Christopher Ryan, MDPortland, OR 972391033127584
  33. Rachel Sanborn, MDPortland, OR 972131275548794
  34. Michael Savin, MDPortland, OR 972391558308114
  35. Karl Schultheiss, MDBend, OR 977011265478325
  36. Spencer Shao, M.D.Portland, OR 972271841293420
  37. Jeff Sharman, M.D.Eugene, OR 974011659596179
  38. Tanaya Shree, M.D., PH.D.Portland, OR 972391861768269
  39. John Smith, M.D.Portland, OR 972131427051077
  40. Edward Soo, M.D.Portland, OR 972131053314633
  41. Jessica Stempel, M.D.Portland, OR 972391386025815
  42. Margaret Sunderland, MDCorvallis, OR 973301154360584
  43. Matthew Taylor, MDPortland, OR 972131134239197
  44. Samuel Taylor, M.D.The Dalles, OR 970581619945219
  45. Rajat Thawani, MDPortland, OR 972391386176394
  46. Nagendra Tirumali, M.D.Portland, OR 972271669565230
  47. Zheng Topp, M.D.Portland, OR 972251023212784
  48. Thomas Trezona, MDSpringfield, OR 974771295826014
  49. Walter Urba, MD, PHDPortland, OR 972131548253602
  50. Chetan Vakkalagadda, M.D.Portland, OR 972391447781497

Source: CMS NPPES, primary taxonomy 207RX0202X: records by practice city and the list of records, file of Aug 9, 2026.

Oregon ranks 7 of 51 per resident

  1. New York2.8
  2. Minnesota2.8
  3. Connecticut2.7
  4. Oregon2.5
  5. Missouri2.5
  6. Florida2.5
  7. 50 states and D.C.1.7

Source: CMS NPPES, primary taxonomy 207RX0202X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.4% of these records appear in a Medicare file, against 81.8% 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. Oregon79.4%
  2. United States81.8%

Medical Oncology Physician records in Oregon, measured

  • In a Medicare file85 of 107 · 79.4% here, 81.8% nationally
  • In the CMS Doctors and Clinicians file76 · 71.0% here, 72.5% nationally
  • Not updated in five years or more63 · 58.9% here, 49.3% nationally
  • Median graduation year2003 · the 76 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RX0202X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

107 NPPES records list medical oncology physician (207RX0202X) as their primary taxonomy with a practice address in Oregon: 2.5 per 100,000 residents against 1.7 nationally (50 states and D.C.). Portland has 66 of them (62%).

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. Virginia107
  2. Colorado108
  3. Tennessee114
  4. Connecticut99

States with a similar rate per 100,000

  1. Missouri2.5
  2. Florida2.5
  3. Vermont2.5
  4. Washington2.3

The largest states

  1. Florida561
  2. New York548
  3. Texas547
  4. California447
  5. Massachusetts421

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.