NPPES file of Aug 9, 2026

Oregon Medicare prescriber rankings

19,553 Oregon prescribers billed $3.0 billion in Medicare Part D drugs in 2024, the 30th largest of 56 states and territories. Opioids were 4.68 of every 100 of those claims (CMS), above the national 3.52.

CMS Medicare Part D Prescribers, 2024; CMS NPPES · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).
  • Prescribers19,553
  • Part D drug cost$3.0 billion
  • Average per prescriber$155,243
  • Wrote an opioid (CMS)12,742 (65.15%)
  • Opioid claims per 100 claims (CMS)4.68

Reading the Oregon tables

Oregon's 19,553 prescribers wrote 19,299,409 Part D claims in 2024, about $155,243 in drug cost per prescriber. A high total usually reflects specialty practice, such as cancer, rheumatology or HIV care. These are billing tables, not quality ratings. PlainDoctor does not rank named prescribers by opioid share; the state's opioid figures above come from CMS's own totals.

The 50 highest Part D drug-cost totals

Prescriber (NPPES taxonomy)Drug costClaims
1Ahmad MasriCardiovascular Disease Physician$19.6 million2,681
2Bryan MehlhaffUrology Physician$12.3 million2,378
3William PierceHematology & Oncology Physician$12.0 million5,167
4Jeff SharmanMedical Oncology Physician$9.5 million1,567
5William MartinMedical Oncology Physician$9.1 million1,546
6Jeffrey RobinsonPulmonary Disease Physician$8.3 million1,760
7Justin SovichHematology & Oncology Physician$8.3 million3,370
8Jenna KayAdvanced Heart Failure and Transplant Cardiology Physician$7.9 million4,594
9John StrotherHematology & Oncology Physician$6.9 million2,589
10Eva MedvedovaHematology (Internal Medicine) Physician$6.9 million1,320
11Rui LiHematology (Internal Medicine) Physician$6.8 million2,366
12Nizar ChahinNeurology Physician$6.8 million1,174
13Andrew ChenHematology & Oncology Physician$6.8 million1,263
14Abdul Hai MansoorHematology & Oncology Physician$6.7 million2,175
15Todd CloverHematology & Oncology Physician$6.7 million2,410
16Shawn MacalesterRheumatology Physician$6.4 million3,821
17Jennifer BrowHematology & Oncology Physician$6.3 million1,471
18Christina FitzmauriceHematology & Oncology Physician$6.2 million1,462
19Catherine MarkinPulmonary Disease Physician$5.9 million979
20Christine BarnettHematology & Oncology Physician$5.9 million1,237
21Eric LuInternal Medicine Physician$5.9 million1,542
22Stephen SpurgeonInternal Medicine Physician$5.8 million1,422
23Sandeep MashruHematology & Oncology Physician$5.8 million1,816
24Natasha TiffanyHematology & Oncology Physician$5.7 million2,984
25Rebecca SilbermannHematology (Internal Medicine) Physician$5.5 million1,134
26Virginia SatcherAdult Health Nurse Practitioner$5.5 million1,082
27Ashray ManiarHematology & Oncology Physician$5.5 million2,401
28Bryden ConsidineHematology & Oncology Physician$5.4 million1,775
29Aimee KohnHematology & Oncology Physician$5.4 million2,061
30Robert LufkinMedical Oncology Physician$5.4 million1,496
31Matthew TippingHematology & Oncology Physician$5.3 million2,400
32Joshua WeeseHematology & Oncology Physician$5.2 million1,549
33Tony HoHematology & Oncology Physician$4.9 million1,284
34Joshua GulvinMedical Oncology Physician$4.9 million1,208
35Richard ReedHematology & Oncology Physician$4.9 million1,247
36Wayne StraussPulmonary Disease Physician$4.8 million1,300
37Catherine O'BrienHematology & Oncology Physician$4.8 million1,668
38Charles PetruninHematology & Oncology Physician$4.8 million1,321
39Alison SavageHematology & Oncology Physician$4.7 million1,999
40Lianne LinPulmonary Disease Physician$4.7 million2,285
41Douglas BeersInternal Medicine Physician$4.7 million8,851
42Christie MooreMedical Oncology Physician$4.7 million894
43Christopher YasenchakHematology & Oncology Physician$4.7 million1,454
44Luke FletcherHematology & Oncology Physician$4.7 million1,686
45Thomas DelougheryHematology (Internal Medicine) Physician$4.7 million1,012
46Steven SearsPulmonary Disease Physician$4.6 million1,464
47David DrylandRheumatology Physician$4.6 million6,676
48Mark SofiaGastroenterology Physician$4.6 million750
49Kristine LethertInternal Medicine Physician$4.5 million1,723
50Ian SchnadigHematology & Oncology Physician$4.5 million1,895

Source: CMS Medicare Part D Prescribers by Provider, 2024 (data.cms.gov), matched to CMS NPPES by NPI; vaccine share from the prescriber's top drugs in the CMS by-provider-and-drug file. Specialty is the taxonomy the clinician reported to NPPES.

Common questions

How many Medicare prescribers are in Oregon?

Oregon has 19,553 Medicare Part D prescribers who filed 19,299,409 claims totaling $3.0 billion in drug costs.

What is the opioid prescribing rate in Oregon?

Opioids were 4.68 of every 100 Medicare Part D claims written by Oregon prescribers in 2024, against 3.52 nationally (CMS). 12,742 of the state's 19,558 Part D prescribers in CMS's geography file (65.15%) wrote at least one opioid.

Checking a prescriber

Open the prescriber's record for the full NPI entry and prescribing detail, then confirm the license on the state board search. The Part D file covers Medicare Part D only; commercial, Medicaid, VA and cash prescriptions are not in it.

Prescriber rankings in other states

  1. Alabama
  2. Alaska
  3. American Samoa
  4. Arizona
  5. Arkansas
  6. California
  7. Colorado
  8. Connecticut
  9. Delaware
  10. District of Columbia
  11. Florida
  12. Georgia
  13. Guam
  14. Hawaii
  15. Idaho
  16. Illinois
  17. Indiana
  18. Iowa
  19. Kansas
  20. Kentucky
  21. Louisiana
  22. Maine
  23. Maryland
  24. Massachusetts
  25. Michigan
  26. Minnesota
  27. Mississippi
  28. Missouri
  29. Montana
  30. Nebraska
  31. Nevada
  32. New Hampshire
  33. New Jersey
  34. New Mexico
  35. New York
  36. North Carolina
  37. North Dakota
  38. Northern Mariana Islands
  39. Ohio
  40. Oklahoma
  41. Oregon
  42. Pennsylvania
  43. Puerto Rico
  44. Rhode Island
  45. South Carolina
  46. South Dakota
  47. Tennessee
  48. Texas
  49. Utah
  50. Vermont
  51. Virgin Islands
  52. Virginia
  53. Washington
  54. West Virginia
  55. Wisconsin
  56. Wyoming

National prescriber rankings · All rankings

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 Medicare Part D data year 2024 (CMS).