HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Brenda Brown Katz, M.D. with clinicians in the same registry specialty: Pathology (CMS).

MINNEAPOLIS, MN · Exact areaEdit location

2024 published service data · 63 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Andrea Beth Conway, M.D.

Pathology (CMS) · Minneapolis, MN

Shared published services
3 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
  • Immunologic analysis technique on body fluid, other fluids with concentration (86335)
63%Service-mix similarityView profile →

Tracy Michele Lundberg, M.D.

Pathology (CMS) · Minneapolis, MN

Shared published services
3 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
  • Immunologic analysis technique on body fluid, other fluids with concentration (86335)
54%Service-mix similarityView profile →

Jack Barnett Shelton, MD

Pathology (CMS) · Minneapolis, MN

Shared published services
3 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
  • Immunologic analysis technique on body fluid, other fluids with concentration (86335)
51%Service-mix similarityView profile →

Sarah M Drawz, MD

Pathology (CMS) · Minneapolis, MN

Shared published services
2 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
51%Service-mix similarityView profile →

Katharine Sippel Park, MD

Pathology (CMS) · Minneapolis, MN

Shared published services
2 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
49%Service-mix similarityView profile →

Lori Jean Ryan, MD

Pathology (CMS) · Minneapolis, MN

Shared published services
3 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
  • Immunologic analysis technique on body fluid, other fluids with concentration (86335)
44%Service-mix similarityView profile →

Margaret L Menezes-Ruocco, MD

Pathology (CMS) · Minneapolis, MN

Shared published services
3 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
  • Immunologic analysis technique on body fluid, other fluids with concentration (86335)
41%Service-mix similarityView profile →

Jena Catherine Martin, M.D.

Pathology (CMS) · Minneapolis, MN

Shared published services
2 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
28%Service-mix similarityView profile →

Chad P Soupir, MD

Pathology (CMS) · Minneapolis, MN

Shared published services
2 shared services · view billing descriptions
  • Protein measurement, serum (84165)
  • Immunologic analysis technique on serum (immunofixation) (86334)
22%Service-mix similarityView profile →

Eric N Kehrberg, MD

Pathology (CMS) · Minneapolis, MN

Shared published services
1 shared services · view billing descriptions
  • Protein measurement, serum (84165)
20%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.