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Compare the published Medicare service mix of William Shilkoff with clinicians in the same registry specialty: Nephrology (CMS).

BROOKLYN, NY · Exact areaEdit location

2024 published service data · 73 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jamil Ibrahim

Specialty details in registry · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
85%Service-mix similarityView profile →

Antonio Nicoletta, M.D.

Internal Medicine · Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
80%Service-mix similarityView profile →

Okwudili Nnaji, M D

Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
78%Service-mix similarityView profile →

Priyanka Singh, M.D

Internal Medicine · Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
75%Service-mix similarityView profile →

Javed I Saqib, MD

Internal Medicine · Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
71%Service-mix similarityView profile →

Subodh J. Saggi, MD, MPH

Internal Medicine · Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
69%Service-mix similarityView profile →

Ahmad Waseef, MD

Internal Medicine · Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
61%Service-mix similarityView profile →

Ilya Shneyderman

Internal Medicine · Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
60%Service-mix similarityView profile →

Elie Fein, MD

Internal Medicine · Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
59%Service-mix similarityView profile →

Abraham Samra, M.D.

Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Dialysis services, 1 physician visit per month (20 years or older) (90962)
58%Service-mix similarityView profile →

Adel Sayed El-Hennawy, M.D.

Internal Medicine · Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
57%Service-mix similarityView profile →

Elena Frolova

Nephrology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Hemodialysis procedure with physician evaluation (90935)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
57%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.