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Compare the published Medicare service mix of Richard M Gewanter, MD with clinicians in the same registry specialty: Radiation Oncology (CMS).

ROCKVILLE CENTRE, 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 · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Rajiv Sharma, M.D.

Radiation Oncology (CMS) · New Hyde Park, NY

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
85%Service-mix similarity~5.2 milesView profile →

Jennifer Ma, MD

Radiation Oncology (CMS) · Uniondale, NY

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
84%Service-mix similarity~3.8 milesView profile →

Mark Ashamalla, M.D.

Radiation Oncology (CMS) · Far Rockaway, NY

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Radiation treatment management, 5 treatment sessions (77427)
81%Service-mix similarity~7.5 milesView profile →

Todd Jared Carpenter, MD

Radiation Oncology (CMS) · Mineola, NY

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
79%Service-mix similarity~5.9 milesView profile →

Jonathan A Haas, MD

Radiation Oncology (CMS) · Mineola, NY

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
74%Service-mix similarity~5.9 milesView profile →

Brianna M Jones, MD

Radiation Oncology (CMS) · New Hyde Park, NY

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
70%Service-mix similarity~7.4 milesView profile →

Clary Evans

Radiation Oncology (CMS) · New Hyde Park, NY

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
66%Service-mix similarity~7.4 milesView profile →

Beatrice Bloom, M.D.

Radiation Oncology (CMS) · Manhasset, NY

Shared published services
3 shared services · view billing descriptions
  • Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
65%Service-mix similarity~9.5 milesView profile →

Anne F. Vinokur, MD

Radiation Oncology (CMS) · Garden City, NY

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Radiation treatment management, 5 treatment sessions (77427)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
60%Service-mix similarity~4.4 milesView profile →

Louis Potters, MD

Internal Medicine · Radiation Oncology (CMS) · Oceanside, NY

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Radiation treatment management, 5 treatment sessions (77427)
54%Service-mix similarity~1.7 milesView profile →

Vishesh Agrawal, M.D.

Radiation Oncology (CMS) · New Hyde Park, NY

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Radiation treatment management, 5 treatment sessions (77427)
46%Service-mix similarity~7.4 milesView profile →

Raymond Meshrekey Luke, DO

Radiation Oncology (CMS) · Jamaica, NY

Shared published services
3 shared services · view billing descriptions
  • Calculation of radiation therapy dose (77300)
  • Radiation treatment management, 5 treatment sessions (77427)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
45%Service-mix similarity~8.8 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.