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Compare the published Medicare service mix of George A Visvikis with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

STATEN ISLAND, NY · Exact areaEdit location

2024 published service data · 49 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Matthew J Stern

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
93%Service-mix similarityView profile →

Michael T. Mantello

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
91%Service-mix similarityView profile →

Janice Hwang, MD

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
82%Service-mix similarityView profile →

Mark J Raden, M.D.

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
74%Service-mix similarityView profile →

Vikram M Shaker, M.D.

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
58%Service-mix similarityView profile →

Raven Devincenzo, M.D.

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
31%Service-mix similarityView profile →

Sudha Challa, MD

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of brain without contrast (70551)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of lower spine without contrast (72131)
30%Service-mix similarityView profile →

Sasan Yasharpour, MD

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of brain without contrast (70551)
  • Mri scan of brain before and after contrast (70553)
29%Service-mix similarityView profile →

Joseph Platnick, MD

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of lower spine without contrast (72131)
  • Ct scan of upper spine without contrast (72125)
28%Service-mix similarityView profile →

Salvatore Farruggia, M.D.

Diagnostic Radiology · Pediatric Medicine (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
  • Ct scan of face without contrast (70486)
21%Service-mix similarityView profile →

Janani Kamesan, M.D.

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
  • Ct scan of upper spine without contrast (72125)
16%Service-mix similarityView profile →

Suraj Vijay Parekh, M.D.

Diagnostic Radiology (CMS) · Staten Island, NY

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
  • Ct scan of face without contrast (70486)
16%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.