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Compare the published Medicare service mix of Tracy A Maceachern, MD with clinicians in the same registry specialty: Emergency Medicine.

FORT CARSON, CO · Exact areaEdit location

2024 published service data · 9 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David Bruce Baumgartner, M.D.

Emergency Medicine · Fort Carson, CO

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with low level of medical decision making (99283)
  • Emergency department visit with moderate level of medical decision making (99284)
87%Service-mix similarityView profile →

Dallin Mitchell, D.O.

Emergency Medicine · Fort Carson, CO

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with low level of medical decision making (99283)
  • Emergency department visit with moderate level of medical decision making (99284)
79%Service-mix similarityView profile →

Matthew Nilan, D.O.

Emergency Medicine · Fort Carson, CO

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with low level of medical decision making (99283)
  • Emergency department visit with moderate level of medical decision making (99284)
73%Service-mix similarityView profile →

David Holland, MD

Emergency Medicine · Fort Carson, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
59%Service-mix similarityView profile →

Shelah Naarah Hayes, MD

Emergency Medicine · Fort Carson, CO

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
56%Service-mix similarityView profile →

Ryan Gifford-Hollingsworth, DO

Emergency Medicine · Fort Carson, CO

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
43%Service-mix similarityView profile →

Sam Blair, MD

Emergency Medicine · Fort Carson, CO

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
39%Service-mix similarityView profile →

Alicia Cox, DO

Emergency Medicine · Fort Carson, CO

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
38%Service-mix similarityView profile →

Joshua Krieger, MD

Emergency Medicine · Fort Carson, CO

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
26%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.