A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Nathaniel Mark Birgenheier, M.D. 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.

David Edwin Morgan, M.D.

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
72%Service-mix similarityView profile →

Jen Chang, M.D.

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
61%Service-mix similarityView profile →

Natalie Anne Silverton, MD

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
61%Service-mix similarityView profile →

Amber Dawn Bledsoe, M.D.

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
51%Service-mix similarityView profile →

David Warner Smith, MD

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
49%Service-mix similarityView profile →

Jason P Harig, M.D.

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
40%Service-mix similarityView profile →

Matthew J Griffee, MD

Anesthesiology · Salt Lake City, UT

Shared published services
1 shared services · view billing descriptions
  • Ultrasound of heart blood flow, valves and chambers, follow-up (93321)
36%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.