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Compare the published Medicare service mix of Fengyi Shen, M.D. with clinicians in the same registry specialty: Internal Medicine.

AMITYVILLE, NY · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 257 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Raymond Xu, M.D.

Internal Medicine · Freeport, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
40%Service-mix similarity~9.1 milesView profile →

Shahid Raza Malik

Internal Medicine · North Babylon, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
32%Service-mix similarity~5.9 milesView profile →

Seema Massand, MD

Internal Medicine · Bethpage, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
31%Service-mix similarity~5.3 milesView profile →

Carol Sasportas, MD

Internal Medicine · Hempstead, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
27%Service-mix similarity~9.2 milesView profile →

Joseph Frank Nestola, DO

Internal Medicine · Bethpage, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
24%Service-mix similarity~5.3 milesView profile →

Jason Fishbein, M.D.

Internal Medicine · Bethpage, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
24%Service-mix similarity~5.3 milesView profile →

Jed Allen Hantverk, MD

Internal Medicine · Hicksville, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
22%Service-mix similarity~7.7 milesView profile →

Brooke R Keane, MD

Internal Medicine · Hicksville, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
22%Service-mix similarity~7.7 milesView profile →

Judah Isaacs, MD

Internal Medicine · Hicksville, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
22%Service-mix similarity~7.7 milesView profile →

Anna Gorski-Piaszczyk, MD

Internal Medicine · West Islip, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
22%Service-mix similarity~6.4 milesView profile →

Ron E Kastner, M.D.

Internal Medicine · Plainview, NY

Shared published services
1 shared services · view billing descriptions
  • Hemoglobin a1c level (83036)
21%Service-mix similarity~7.3 milesView 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 approximate distance 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.