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Compare the published Medicare service mix of Thomas M Derrig, MD with clinicians in the same registry specialty: Surgery.

HARTLAND, WI · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Peter Anthony Garza, MD

Surgery · Summit, WI

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
71%Service-mix similarity~7.2 milesView profile →

Dennis Frederick Zagrodnik, M.D.

Surgery · Summit, WI

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
50%Service-mix similarity~7.2 milesView profile →

Joel David Harris, MD

Surgery · Summit, WI

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
  • Hospital discharge day management, more than 30 minutes (99239)
46%Service-mix similarity~7.2 milesView profile →

Emily E Stoddard, MD

Surgery · Oconomowoc, WI

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)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
41%Service-mix similarity~7.2 milesView profile →

Kathryn M Haberman, MD

Surgery · Summit, WI

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Critical care, first 30-74 minutes (99291)
  • Hospital discharge day management, more than 30 minutes (99239)
39%Service-mix similarity~7.2 milesView profile →

Edward Lloyd Kreimier Iii, M.D.

Surgery · Waukesha, WI

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 straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
38%Service-mix similarity~8.1 milesView profile →

Cynthia A Pangallo, MD

Surgery · Oconomowoc, WI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
38%Service-mix similarity~7.2 milesView profile →

Christopher B Davies, MD

Surgery · Waukesha, WI

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 straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
30%Service-mix similarity~8.1 milesView profile →

Thomas John Wade, M.D.

Surgery · Waukesha, WI

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 straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
29%Service-mix similarity~8.1 milesView profile →

David D Schmitt, MD

Surgery · Waukesha, WI

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
28%Service-mix similarity~8.1 milesView profile →

Stephen R Bartos, MD

Surgery · Waukesha, WI

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 straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
28%Service-mix similarity~8.1 milesView profile →

Stan L Markus, MD

Surgery · Oconomowoc, WI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
27%Service-mix similarity~7.2 milesView 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 approximate distance 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.