NPPES file of Aug 9, 2026

Internal Medicine Physician in Oregon

2,116 NPPES records list internal medicine physician with a practice address in Oregon, 50 per 100,000 residents, the 13th highest rate of 51. Portland and Corvallis have the most; each record links to the provider's NPI and the Oregon license search. Page 25 of 43.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 889

  1. Portland889
  2. Corvallis129
  3. Clackamas101
  4. Bend97
  5. Salem86

Internal Medicine Physician records in Oregon

  1. Andrea Matsumura, MDPortland, OR 972121487761136
  2. Kathryn Maxwell, D.O.Eugene, OR 974011972827913
  3. Dennis Mayer, MDMilwaukie, OR 972221235112723
  4. Sara Mayo, M.D.Portland, OR 972391407241037
  5. Ellen Mayock, MDLake Oswego, OR 970351619930237
  6. Dennis Mazur, M.D.Portland, OR 972391962518134
  7. Michael Mazzotta, M.D.Portland, OR 972131841427572
  8. Malcolm McAninch, MDPortland, OR 972251508830621
  9. Jarred McAteer, MDPortland, OR 972391225471014
  10. Carmen McCallum, M.D.Tualatin, OR 970621295810265
  11. Michele McCallum, M.D.Clackamas, OR 970151922103092
  12. Elizabeth McCaskey, DOPortland, OR 972251174084925
  13. Nathaniel McCoy, M.D.Newberg, OR 971321689973182
  14. Zoe McCracken-Schroeder, MDEugene, OR 974011356965222
  15. Marin McCutcheon, MDKlamath Falls, OR 976011477934446
  16. Philip McDaniel, M.D.Portland, OR 972161851327753
  17. Colin McDonough, M.DWest Linn, OR 970681063507788
  18. Craig McDougall, M.D.Beaverton, OR 970061679716716
  19. William McDougall, DOBrookings, OR 974151598763302
  20. Brian McGarry, MDPortland, OR 972391598260218
  21. Margo McGehee-Kelly, M.D.Portland, OR 972061437247343
  22. Patrick McGowan, MDGresham, OR 970301912916990
  23. Gabrielle McGrew, MDPortland, OR 972021104020726
  24. John McGuire, M.D.Portland, OR 972251346354487
  25. Louise McHarris, D.O.Portland, OR 972191518928563
  26. Robin McKelvey, MDCorvallis, OR 973301730228727
  27. Lindsey McKinley, DOPortland, OR 972131265845754
  28. Mark McKinstry, MDTualatin, OR 970621073582383
  29. Collin McLaughlin, DOKeizer, OR 973031215220306
  30. Diana McLaurin, M.D.Clackamas, OR 970151306924352
  31. Mischelle McMillan, MDGresham, OR 970301851461990
  32. Lori McMullan, M.D.Portland, OR 972391013938141
  33. John McMullan Jr, M.D.Portland, OR 972071437373271
  34. Steven McNally, MDTigard, OR 972231376635532
  35. Travis McNeal, M.D.Medford, OR 975041356437230
  36. Theodore McNitt, MDCoos Bay, OR 974201447235668
  37. Evelyn Medrano, MDTigard, OR 972231528151313
  38. Huey Meeker, M.D.West Linn, OR 970681437242997
  39. Dawn Mehlhaff, M.D.Springfield, OR 974771720149677
  40. Erich Meihoff, MDPortland, OR 972101144295916
  41. Carmelo Mejia, MDSalem, OR 973061346468451
  42. Gerald Melchor, M.D.West Linn, OR 970681942408612
  43. Natalie Melrose, M.S., M.D.Salem, OR 973011427282409
  44. Kenneth Melvin, MDLake Oswego, OR 970351013971837
  45. Jacob MenchacaCorvallis, OR 973301720971435
  46. Brittney Mensen, DOGresham, OR 970301073951208
  47. Chandni Merchant, M.D.McMinnville, OR 971281366857724
  48. Mary Meyer, MDPortland, OR 972101598725004
  49. Shelby Meyer, MDPortland, OR 972131467101022
  50. Ellen Meyers, MDBend, OR 977011417063843

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Oregon ranks 13 of 51 per resident

  1. Michigan57
  2. Pennsylvania56
  3. Vermont50
  4. Oregon50
  5. New Jersey50
  6. New Hampshire48
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

72.8% of these records appear in a Medicare file, against 78.7% 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. Oregon72.8%
  2. United States78.7%

Internal Medicine Physician records in Oregon, measured

  • In a Medicare file1,540 of 2,116 · 72.8% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file1,232 · 58.2% here, 61.4% nationally
  • Not updated in five years or more1,234 · 58.3% here, 55.4% nationally
  • Median graduation year2008 · the 1,232 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,116 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Oregon: 50 per 100,000 residents against 44 nationally (50 states and D.C.). Portland has 889 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. Indiana2,109
  2. Wisconsin2,078
  3. Colorado2,046
  4. South Carolina1,881

States with a similar rate per 100,000

  1. American Samoa50.1
  2. New Jersey49.9
  3. Vermont50.4
  4. New Hampshire48.0

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.