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Compare the published Medicare service mix of Alyson J Mcgregor, MD with clinicians in the same registry specialty: Emergency Medicine.

GREENVILLE, SC · Exact areaEdit location

2024 published service data · 212 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Eric William Ossmann, MD

Emergency Medicine · Greenville, SC

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)
100%Service-mix similarityView profile →

Halee Bryant Vaughn

Emergency Medicine · Greenville, SC

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)
100%Service-mix similarityView profile →

Brandford Kojo Otabil Adobaw, MD

Emergency Medicine · Greenville, SC

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)
100%Service-mix similarityView profile →

Kelsey Mitchell Johnson

Emergency Medicine · Greenville, SC

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)
100%Service-mix similarityView profile →

Amanda Brady Hall, DO

Emergency Medicine · Greenville, SC

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)
100%Service-mix similarityView profile →

Lindsay Reed Tjiattas-Saleski, D.O., M.B.A.

Emergency Medicine · Greenville, SC

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)
100%Service-mix similarityView profile →

Samantha Cuffe Shelhoss

Emergency Medicine · Greenville, SC

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)
100%Service-mix similarityView profile →

Gustavo Carmen Lopez, MD

Emergency Medicine · Greenville, SC

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)
99%Service-mix similarityView profile →

John D Gaskins, MD

Emergency Medicine · Greenville, SC

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)
97%Service-mix similarityView profile →

Caitlin Alexandria Blackwell, MD STUDENT

Emergency Medicine · Greenville, SC

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)
93%Service-mix similarityView profile →

Quinten Dashawn Meadors, MD

Emergency Medicine · Greenville, SC

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)
91%Service-mix similarityView profile →

William Henry Jackson, M.D., M.B.A

Emergency Medicine · Greenville, SC

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)
91%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.