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Compare the published Medicare service mix of Petro Magdy Ayad Kostandy, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

ROCHESTER, MN · Exact areaEdit location

2024 published service data · 253 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Katrin Vetter, DO

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
85%Service-mix similarityView profile →

Jason E Lally, MD

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
83%Service-mix similarityView profile →

Vance T Lehman, MD

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
79%Service-mix similarityView profile →

Julie Berry Wibskov Guerin, M.D.

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
77%Service-mix similarityView profile →

Edward P Lindell, M.D.

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
75%Service-mix similarityView profile →

Ian T Mark, MD

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
75%Service-mix similarityView profile →

Patrick H Luetmer, M.D.

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
74%Service-mix similarityView profile →

Greta Beth Liebo, MD

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
73%Service-mix similarityView profile →

Girish Bathla, MD

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
73%Service-mix similarityView profile →

Steven Anthony Messina, MD

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
72%Service-mix similarityView profile →

Kara M Schwartz, M.D.

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
72%Service-mix similarityView profile →

Asra Nayab, MD

Diagnostic Radiology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
72%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.