A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Gregory Allen Kass, M.D. with clinicians in the same registry specialty: Specialty details in registry.

WAUKESHA, WI · Exact areaEdit location

2024 published service data · 32 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Gregory Allen Francken, M.D.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
87%Service-mix similarityView profile →

Kathleen Kay Klaas, M.D.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
81%Service-mix similarityView profile →

David Morgan Roelke, M.D.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
81%Service-mix similarityView profile →

Gary Anthony Beyer, M.D.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
78%Service-mix similarityView profile →

Brian Thomas Lipman, M.D.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
76%Service-mix similarityView profile →

Patrick Raymond Keller, M.D.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
74%Service-mix similarityView profile →

Erik W. Olson, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
74%Service-mix similarityView profile →

Jeffrey Thomas Vanbeek, M.D.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
73%Service-mix similarityView profile →

Jennifer T Bergin, M.D.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
71%Service-mix similarityView profile →

Kenneth Alan Lahrman, D.O.

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
71%Service-mix similarityView profile →

Benjamin C Gillen, MD

Diagnostic Radiology (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
70%Service-mix similarityView profile →

Eric Michael Jakubowski, M.D.

Diagnostic Radiology · Nuclear Medicine (CMS) · Waukesha, WI

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
68%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.