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Compare the published Medicare service mix of Barbara S Terpstra, MD with clinicians in the same registry specialty: Vascular Surgery (CMS).

IL · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Vera Boutros, M.D.

Family Practice (CMS) · Arlington Heights, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
94%Service-mix similarityView profile →

Thomas A. Lutz, MD

Internal Medicine (CMS) · Lake Zurich, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
85%Service-mix similarityView profile →

Sean David Mcwilliams, MD

General Practice · Peripheral Vascular Disease (CMS) · Wheaton, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasonic guidance for needle placement (76942)
83%Service-mix similarityView profile →

Stephen Carl Sorenson, MD

Emergency Medicine · Peripheral Vascular Disease (CMS) · Lake Zurich, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
83%Service-mix similarityView profile →

Kathryn Sue Bohn, M.D.

Emergency Medicine (CMS) · Bloomington, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
82%Service-mix similarityView profile →

Richard Castillo, M.D.

Emergency Medicine (CMS) · Bloomington, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
78%Service-mix similarityView profile →

Thomas Edwin Nielsen, M.D.

Emergency Medicine · Family Practice (CMS) · Bloomington, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
75%Service-mix similarityView profile →

Kevin Patrick Kern, DO

Emergency Medicine (CMS) · Geneva, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasonic guidance for needle placement (76942)
70%Service-mix similarityView profile →

Mensur O. Sunje, M.D. M.SC.

Colorectal Surgery (Proctology) · Internal Medicine · Peripheral Vascular Disease (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasonic guidance for needle placement (76942)
69%Service-mix similarityView profile →

Peter Brukasz, M.D.

Internal Medicine (CMS) · Palos Hills, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasonic guidance for needle placement (76942)
68%Service-mix similarityView profile →

David I. Rosen, M.D.

Dermatology (CMS) · Northbrook, IL

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
54%Service-mix similarityView profile →

Tracy C Brito, M.D.

Internal Medicine (CMS) · Rockford, IL

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
29%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.