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Similar work.
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Compare the published Medicare service mix of Brett Bartz, M.D. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

ENGLEWOOD, CO · Exact areaEdit location

2024 published service data · 92 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Daniel Eric Wingard, D.O.

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 1 view (71045)
70%Service-mix similarityView profile →

Simeon D. Abramson, MD

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
69%Service-mix similarityView profile →

Kimberly Hawn Wright, MD

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 1 view (71045)
69%Service-mix similarityView profile →

Elizabeth B Maddox, MD

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
69%Service-mix similarityView profile →

Lora Barke, DO

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 1 view (71045)
68%Service-mix similarityView profile →

Luke Frank Morris Hoagland, M.D.

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
66%Service-mix similarityView profile →

Daniel James Gillespie, MD

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
63%Service-mix similarityView profile →

Benjamin Mathew Sacks, MD

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan behind abdominal cavity (76770)
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
63%Service-mix similarityView profile →

Aria Bagheri, MD

Diagnostic Radiology · Interventional Radiology · Nuclear Medicine (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening 3d breast mammography (77063)
  • Screening mammography (77067)
62%Service-mix similarityView profile →

Jeffrey Friedland, M.D.

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
62%Service-mix similarityView profile →

Farrel K Vanwagenen, MD

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
62%Service-mix similarityView profile →

Sharmila Lingam-Nattamai, M.D.

Diagnostic Radiology (CMS) · Englewood, CO

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 1 view (71045)
55%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.