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Compare the published Medicare service mix of Manfred Peter Ritter, M.D. with clinicians in the same registry specialty: Surgery.

OR · Exact areaEdit location

2024 published service data · 250 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jennifer Agnes Serfin, M.D

Surgery · Corvallis, OR

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
80%Service-mix similarityView profile →

Robert M Cahn, M.D.

Surgery · Hillsboro, OR

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
77%Service-mix similarityView profile →

Charles Ralph Mueller, M.D.

Surgery · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
77%Service-mix similarityView profile →

Mariko Aili Ferronato, D.O.

Surgery · Salem, OR

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
74%Service-mix similarityView profile →

Ashley Hennessey Mcmann, M.D.

Surgery · Corvallis, OR

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
67%Service-mix similarityView profile →

Ryland Samuel Stucke, M.D.

Surgery · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
64%Service-mix similarityView profile →

Avishai Meyer, MD

Surgery · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
59%Service-mix similarityView profile →

Jennifer G Rodgers, M.D.

Surgery · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
59%Service-mix similarityView profile →

James H Kurtz, D.O.

Surgery · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
58%Service-mix similarityView profile →

Sean Arthur Crowe, MD

Surgery · Beaverton, OR

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
58%Service-mix similarityView profile →

Mark Thomas, MD

Surgery · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
48%Service-mix similarityView profile →

Edward J Bieniek, MD

Surgery · Portland, OR

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
46%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.