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Compare the published Medicare service mix of Joanna Grudziak, MD, MPH with clinicians in the same registry specialty: Surgery.

SALT LAKE CITY, UT · Exact areaEdit location

2024 published service data · 34 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Alexander Lorenzo Colonna, M.D.

Surgery · Salt Lake City, UT

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
94%Service-mix similarityView profile →

Jennifer Rehbein, MD

Surgery · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
56%Service-mix similarityView profile →

Aubrey Lynn Place, MD

Surgery · Salt Lake City, UT

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
51%Service-mix similarityView profile →

Emma Catherine Hamilton, M.D.

Surgery · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
50%Service-mix similarityView profile →

Todd Justin Robinson, D.O.

Surgery · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
42%Service-mix similarityView profile →

Mark Ford Wilkinson, D.O.

Surgery · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
42%Service-mix similarityView profile →

Megan Zak, MD

Surgery · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
42%Service-mix similarityView profile →

Christopher Roy Lachapelle, MD

Surgery · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
37%Service-mix similarityView profile →

Jorge Eduardo De Amorim Filho, MD

Surgery · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
33%Service-mix similarityView profile →

Brian Cook, MD

Surgery · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
24%Service-mix similarityView profile →

Jivatesh Singh Tung, MD

Surgery · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
18%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.