A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Marcus K. Chen, MD with clinicians in the same registry specialty: Anesthesiology.

SALT LAKE CITY, UT · Exact areaEdit location

2024 published service data · 108 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ben Shader Chortkoff, MD

Anesthesiology · Salt Lake City, UT

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for retinal surgery (00145)
79%Service-mix similarityView profile →

Harriet W Hopf, MD

Anesthesiology · Salt Lake City, UT

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
  • Anesthesia for retinal surgery (00145)
76%Service-mix similarityView profile →

Christopher Mark Campbell, MD

Anesthesiology · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for retinal surgery (00145)
73%Service-mix similarityView profile →

Ruth Ann Zimmer, MD

Anesthesiology · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
64%Service-mix similarityView profile →

Kyle R Enslin

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
61%Service-mix similarityView profile →

Tyler T Borg, MD

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
61%Service-mix similarityView profile →

Timothy Robert Dance, MD

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
61%Service-mix similarityView profile →

Peggy B Petersen

Anesthesiology · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for retinal surgery (00145)
61%Service-mix similarityView profile →

Katherine Leigh Koniuch, M.D.

Anesthesiology · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
60%Service-mix similarityView profile →

Jacob Brandenburg, M.D.

Anesthesiology · Salt Lake City, UT

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
  • Anesthesia for other procedure on eye (00140)
55%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.