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Compare the published Medicare service mix of Joseph Frederick Lemker with clinicians in the same registry specialty: Orthopedic Surgery.

MN · Exact areaEdit location

2024 published service data · 327 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Todd Christopher Johnson, M.D.

Orthopedic Surgery · Saint Paul, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
99%Service-mix similarityView profile →

James C Lorge, D.O.

Orthopedic Surgery · Monticello, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
99%Service-mix similarityView profile →

Paul Ryan Johnson, D.O.

Orthopedic Surgery · Little Falls, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
91%Service-mix similarityView profile →

Neil R Olmscheid, DO

Orthopedic Surgery · Red Wing, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
91%Service-mix similarityView profile →

David W Ivance, MD

Orthopedic Surgery · Owatonna, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
86%Service-mix similarityView profile →

Taylor R Beahrs, MD

Orthopedic Surgery · Mankato, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
85%Service-mix similarityView profile →

Denis Regis Clohisy, M.D.

Orthopedic Surgery · Minneapolis, MN

Shared published services
2 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
84%Service-mix similarityView profile →

John Brittan Rogers, M.D.

Orthopedic Surgery · Fridley, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
83%Service-mix similarityView profile →

Robert Freed

Orthopedic Surgery · Mankato, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
81%Service-mix similarityView profile →

William R Lundberg, M.D.

Orthopedic Surgery · Duluth, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
81%Service-mix similarityView profile →

David Earl Edgerton, D.O.

Orthopedic Surgery · Little Falls, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
80%Service-mix similarityView profile →

Robert Russell Doohen, M.D.

Orthopedic Surgery · Cambridge, MN

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Aspiration and/or injection of fluid from large joint (20610)
79%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.