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Compare the published Medicare service mix of Charles Haddon Elijah Sadaphal, M.D. with clinicians in the same registry specialty: Emergency 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 · 123 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ami Anil Shah, M.D.

Emergency Medicine · East Meadow, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
82%Service-mix similarity~7.6 milesView profile →

Ian Mack, M.D.

Emergency Medicine · East Meadow, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
76%Service-mix similarity~7.6 milesView profile →

Rosetta Grella, MD

Emergency Medicine · Bay Shore, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
75%Service-mix similarity~9.2 milesView profile →

Patricia Marie Daly, MD

Emergency Medicine · Bay Shore, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
74%Service-mix similarity~9.2 milesView profile →

Tushar Kapoor, M.D.

Emergency Medicine · East Meadow, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
73%Service-mix similarity~7.6 milesView profile →

John E Shallat, MD

Emergency Medicine · Deer Park, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
73%Service-mix similarity~7.0 milesView profile →

Michelle Gebhard, DO

Emergency Medicine · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
69%Service-mix similarity~6.4 milesView profile →

Steve Park, M.D.

Emergency Medicine · Bethpage, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
68%Service-mix similarity~5.3 milesView profile →

Juan P Gonzalez, MD

Emergency Medicine · Bellmore, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
67%Service-mix similarity~6.3 milesView profile →

Steven J Zimmerman, M.D.

Emergency Medicine · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
66%Service-mix similarity~6.4 milesView profile →

Cesar F Fortes, MD

Emergency Medicine · Bay Shore, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
64%Service-mix similarity~9.2 milesView profile →

Steven Samuel, D.O.

Emergency Medicine · East Meadow, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
64%Service-mix similarity~7.6 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.