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Similar work.
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Compare the published Medicare service mix of Brian Paul Sullivan, MD with clinicians in the same registry specialty: Anesthesiology.

STAMFORD, CT · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kaili Temple Dilts, M.D.

Anesthesiology · Stamford, CT

Shared published services
3 shared services · view billing descriptions
  • Ultrasonic guidance for needle placement (76942)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Other procedure on nervous system (64999)
70%Service-mix similarityView profile →

Ryan M Lippell, M.D.

Anesthesiology · Stamford, CT

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for exam of colon using an endoscope (00812)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
54%Service-mix similarityView profile →

Steven Adam Finkel, M.D.

Anesthesiology · Stamford, CT

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for exam of colon using an endoscope (00812)
48%Service-mix similarityView profile →

Mohammad Hadi Gharedaghi, MD-MPH

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
41%Service-mix similarityView profile →

Shiry Weisberg, M.D

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for exam of colon using an endoscope (00812)
39%Service-mix similarityView profile →

Eric Jankelovits, M.D.

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for exam of colon using an endoscope (00812)
39%Service-mix similarityView profile →

Ayse F. Genc, MD

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for exam of colon using an endoscope (00812)
30%Service-mix similarityView profile →

Shahid Rafiq, M.D.

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for exam of colon using an endoscope (00812)
25%Service-mix similarityView profile →

Richard Morgulis, M.D.

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for exam of colon using an endoscope (00812)
23%Service-mix similarityView profile →

Teresa K W Ning, M.D.

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for exam of colon using an endoscope (00812)
20%Service-mix similarityView profile →

Ronald Giannotto, M.D.

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
16%Service-mix similarityView profile →

Alla Roman Koorn, M.D.

Anesthesiology · Stamford, CT

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for exam of colon using an endoscope (00812)
15%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.