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Compare the published Medicare service mix of Colin Reid Gilligan, AA with clinicians in the same registry specialty: Anesthesiology Assistant (CMS).

SAVANNAH, GA · Exact areaEdit location

2024 published service data · 71 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Darcie B Wood

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for extensive surgery on spine (00670)
71%Service-mix similarityView profile →

Tatsiana Shakhmuts

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for procedure for total knee joint replacement (01402)
62%Service-mix similarityView profile →

Ryan Mitchell Goelz, PAA

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for extensive surgery on spine (00670)
62%Service-mix similarityView profile →

Jonathan Hester

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for extensive surgery on spine (00670)
59%Service-mix similarityView profile →

Sydney Lauren Snow, AA

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for extensive surgery on spine (00670)
55%Service-mix similarityView profile →

Kristine W Tindol, PAA

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
54%Service-mix similarityView profile →

Steve Gonto, PAA

Specialty details in registry · Savannah, GA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
52%Service-mix similarityView profile →

Matthew Shannon, CAA

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
52%Service-mix similarityView profile →

Emma Helmken, AA

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
52%Service-mix similarityView profile →

James Lovelace Conner

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
52%Service-mix similarityView profile →

Karl B King, AAC

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for extensive surgery on spine (00670)
49%Service-mix similarityView profile →

Andrew Walser Nonni, AA

Anesthesiology Assistant (CMS) · Savannah, GA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for procedure for total knee joint replacement (01402)
49%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.