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Compare the published Medicare service mix of Timothy Gerald Zelenak, M.D. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

WASHINGTON, PA · Exact areaEdit location

2024 published service data · 9 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

William Castro, MD

Diagnostic Radiology · Nuclear Medicine (CMS) · Washington, PA

Shared published services
3 shared services · view billing descriptions
  • Nuclear medicine study from skull base to mid-thigh with ct scan (78815)
  • X-ray of chest, 1 view (71045)
  • Nuclear medicine study of bone and/or joint whole body (78306)
30%Service-mix similarityView profile →

William Downer, MD

Diagnostic Radiology (CMS) · Washington, PA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound scan of head and neck soft tissue (76536)
  • X-ray of chest, 1 view (71045)
  • Complete ultrasound scan of abdomen (76700)
25%Service-mix similarityView profile →

Giovanna Aracri, DO

Diagnostic Radiology · Radiation Oncology (CMS) · Washington, PA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound scan of head and neck soft tissue (76536)
  • X-ray of chest, 1 view (71045)
  • Complete ultrasound scan of abdomen (76700)
23%Service-mix similarityView profile →

Jeffrey Hilger, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, PA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ct scan of chest without contrast (71250)
18%Service-mix similarityView profile →

Carl Digiorgio, DO

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, PA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Ct scan of chest without contrast (71250)
17%Service-mix similarityView profile →

Philip Wildenhain, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, PA

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound of both sides of head and neck blood flow (93880)
16%Service-mix similarityView profile →

David Leukhardt, MD

Specialty details in registry · Washington, PA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
  • X-ray of abdomen, 1 view (74018)
16%Service-mix similarityView profile →

William Conroy, MD

Specialty details in registry · Washington, PA

Shared published services
1 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
12%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.