A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Ron Mark, M.D. with clinicians in the same registry specialty: Diagnostic Radiology · Family Practice · Interventional Radiology (CMS).

DEER PARK, 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 · 102 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jeffrey Warhit, M.D.

Diagnostic Radiology (CMS) · Hauppauge, NY

Shared published services
3 shared services · view billing descriptions
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
64%Service-mix similarity~8.1 milesView profile →

Jason Tsai, M.D.

Diagnostic Radiology (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
56%Service-mix similarity~3.5 milesView profile →

Paul Bonheim, M.D.

Specialty details in registry · Hauppauge, NY

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound of within the brain blood flow (93886)
  • Ultrasound of within the brain blood flow following medication (93890)
  • Ultrasound of within the brain blood flow for blood clots (93892)
55%Service-mix similarity~8.1 milesView profile →

Tianyuan Liu, M.D.

Diagnostic Radiology (CMS) · Greenlawn, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
54%Service-mix similarity~7.4 milesView profile →

Elise H. Shreck, MD

Specialty details in registry · Lindenhurst, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Complete ultrasound scan of abdomen (76700)
54%Service-mix similarity~5.5 milesView profile →

Brian J Webber, D.O.

Diagnostic Radiology (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
52%Service-mix similarity~3.5 milesView profile →

Alain Zilkha, MD

Diagnostic Radiology (CMS) · East Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
52%Service-mix similarity~7.9 milesView profile →

Ira L. Fastlich, MD

Diagnostic Radiology (CMS) · Lindenhurst, NY

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
52%Service-mix similarity~5.5 milesView profile →

James F Mchale, MD

Specialty details in registry · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
51%Service-mix similarity~3.5 milesView profile →

Adam Louis Landskowsky, M.D.

Diagnostic Radiology (CMS) · Smithtown, NY

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
50%Service-mix similarity~8.8 milesView profile →

Stephen Mark Henesch, D. O.

Diagnostic Radiology · Pediatric Medicine (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Complete ultrasound scan of abdomen (76700)
50%Service-mix similarity~3.5 milesView profile →

Jay David Hammel, M.D.

Diagnostic Radiology (CMS) · Bethpage, NY

Shared published services
3 shared services · view billing descriptions
  • Complete ultrasound scan of abdomen (76700)
  • Complete ultrasound scan behind abdominal cavity (76770)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
49%Service-mix similarity~8.5 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.