NPPES file of Aug 9, 2026

Hematology & Oncology Physician in Oregon

138 NPPES records list hematology & oncology physician with a practice address in Oregon, 3.3 per 100,000 residents, the 40th highest rate of 51. Portland and Medford 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 207RH0003X · 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, 58

  1. Portland58
  2. Medford19
  3. Bend11
  4. Eugene11
  5. Salem7

Hematology & Oncology Physician records in Oregon

  1. Richard Karchmer, MDMedford, OR 975041952355000
  2. Peter Kenyon, M.D.Corvallis, OR 973301083664338
  3. Tariq Khreis, MDMedford, OR 975041366966368
  4. Hidong Kim, MD, PHDMedford, OR 975041750727764
  5. Myung Sun KimPortland, OR 972131639457583
  6. Emre Koca, M.DMedford, OR 975041508271701
  7. Susan Kohler, MDMedford, OR 975041104866193
  8. Aimee Kohn, MDPortland, OR 972161093892648
  9. Peter Kovach, MDSpringfield, OR 974771023094299
  10. Tibor Kovacsovics, MDPortland, OR 972391396750899
  11. Rajeev Krishnan, M.DPortland, OR 972271487910451
  12. Jody Kujovich, MDPortland, OR 972271972562809
  13. Lucy Langer, MDPortland, OR 972251689705402
  14. Jae Lee, MDEugene, OR 974011154307080
  15. Adam Leikensohn, M.D.The Dalles, OR 970581720046097
  16. Russell Lewis, M.D.Bend, OR 977011104273382
  17. Emily Lin, MDPortland, OR 972251598149650
  18. Matthew Lonergan, MDEugene, OR 974011639122591
  19. Ashray Maniar, M.D.Portland, OR 972271750813101
  20. Jason Mann, MD,MPHPortland, OR 972271194837419
  21. Abdul Hai Mansoor, MDPortland, OR 972271790934149
  22. Kylee Martens, MDPortland, OR 972391649776113
  23. Sandeep Mashru, MDPortland, OR 972271629053855
  24. Sara MatarMedford, OR 975041376959494
  25. Richard Maziarz, MDPortland, OR 972391275548760
  26. Barry McKenzie, MDEugene, OR 974051942286216
  27. Jeffrey McWilliams, M.D.West Linn, OR 970681114920899
  28. Jeffrey Menashe, M.D.Portland, OR 972131871596551
  29. Janelle Meyer, MDSalem, OR 973011881720068
  30. Gabrielle Meyers, MDPortland, OR 972391881602308
  31. William Mooney, M.D.Portland, OR 972131467455014
  32. Phyo Thazin Myint, MDPortland, OR 972391538511894
  33. Sarah Nagle, MDPortland, OR 972391619269487
  34. Stephen Neville, MDCorvallis, OR 973301912955816
  35. Catherine O'Brien, M.D.McMinnville, OR 971281417994047
  36. Heidi OgletreeMedford, OR 975041952874448
  37. Ike Onwere, MDCorvallis, OR 973301467454025
  38. Edward Ottenheimer, MDRoseburg, OR 974711881787547
  39. William Pearse, MDPortland, OR 972131225423148
  40. Charles Petrunin, M.D.Salem, OR 973011881788099
  41. Anthony Pham, M.D.Tigard, OR 972231790913994
  42. William Pierce, M.D.Salem, OR 973011184718314
  43. Brett Poisson, MDMedford, OR 975041255383337
  44. Renee Prins, M.D.Salem, OR 973011639381346
  45. Jeyanthi Ramanarayanan, MDAstoria, OR 971031538269394
  46. Mark Rarick, M.D.Portland, OR 972271114019825
  47. Richard Reed, MDBend, OR 977011174508857
  48. David Regan, M.D.Portland, OR 972131255334926
  49. Mujahid Rizvi, MDMedford, OR 975041699727891
  50. Veronica Roa, MDEugene, OR 974011720064801

Source: CMS NPPES, primary taxonomy 207RH0003X: records by practice city and the list of records, file of Aug 9, 2026.

Oregon ranks 40 of 51 per resident

  1. South Carolina3.4
  2. Kentucky3.4
  3. Arkansas3.4
  4. Oregon3.3
  5. Oklahoma3.2
  6. New Mexico3.0
  7. 50 states and D.C.4.2

Source: CMS NPPES, primary taxonomy 207RH0003X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

78.3% of these records appear in a Medicare file, against 82.9% 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. Oregon78.3%
  2. United States82.9%

Hematology & Oncology Physician records in Oregon, measured

  • In a Medicare file108 of 138 · 78.3% here, 82.9% nationally
  • In the CMS Doctors and Clinicians file97 · 70.3% here, 71.3% nationally
  • Not updated in five years or more77 · 55.8% here, 54.3% nationally
  • Median graduation year2001 · the 97 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RH0003X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

138 NPPES records list hematology & oncology physician (207RH0003X) as their primary taxonomy with a practice address in Oregon: 3.3 per 100,000 residents against 4.2 nationally (50 states and D.C.). Portland has 58 of them (42%).

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. Puerto Rico134
  2. Oklahoma128
  3. Kentucky152
  4. Kansas113

States with a similar rate per 100,000

  1. Arkansas3.4
  2. South Carolina3.4
  3. South Dakota3.4
  4. Michigan3.4

The largest states

  1. California1,583
  2. New York1,163
  3. Texas922
  4. Florida818
  5. Pennsylvania784

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.