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Compare the published Medicare service mix of Bart A. Chess, M.D. with clinicians in the same registry specialty: Vascular Surgery (CMS).

PITTSBURGH, PA · Exact areaEdit location

2024 published service data · 19 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Georges Al-Khoury

General Surgery · Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
81%Service-mix similarityView profile →

Vei Shaun Siow

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
80%Service-mix similarityView profile →

Amanda Phillips, M.D.

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
78%Service-mix similarityView profile →

Michel Makaroun, MD

General Surgery · Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
78%Service-mix similarityView profile →

Steven Leers

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
75%Service-mix similarityView profile →

Michael Charles Madigan, M.D.

General Surgery · Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
74%Service-mix similarityView profile →

Samuel Thomas Simone, M.D.

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
73%Service-mix similarityView profile →

Nathan Liang

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
70%Service-mix similarityView profile →

Catherine C Go, M.D.

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
69%Service-mix similarityView profile →

Samuel T. A. Simone, M.D.

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
68%Service-mix similarityView profile →

Othman Mohamed-Asem Abdul-Malak

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
68%Service-mix similarityView profile →

Natalie Sridharan

Vascular Surgery (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of arm and leg arteries (93922)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
68%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.