A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Daniel Portal, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

LAWRENCE, 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 · 99 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Raphael C Zohn, MD

Diagnostic Radiology (CMS) · Valley Stream, NY

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of abdomen, 1 view (74018)
85%Service-mix similarity~2.9 milesView profile →

Barry Kanzer, MD

Specialty details in registry · New Hyde Park, NY

Shared published services
1 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
75%Service-mix similarity~8.4 milesView profile →

Edward Wind, MD

Diagnostic Radiology (CMS) · New Hyde Park, NY

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of abdomen, 1 view (74018)
57%Service-mix similarity~8.4 milesView profile →

David B. Marshall, M.D.

Specialty details in registry · Garden City, NY

Shared published services
1 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
56%Service-mix similarity~8.8 milesView profile →

Samantha Gordon, M.D.

Diagnostic Radiology (CMS) · New Hyde Park, NY

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of abdomen, 1 view (74018)
55%Service-mix similarity~8.4 milesView profile →

Vinh Q Phan, M.D.

Diagnostic Radiology (CMS) · Oceanside, NY

Shared published services
1 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
53%Service-mix similarity~5.2 milesView profile →

William Chiu, MD

Diagnostic Radiology (CMS) · Jamaica, NY

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of abdomen, 1 view (74018)
53%Service-mix similarity~7.9 milesView profile →

Albert Huang, MD

Diagnostic Radiology (CMS) · Jamaica, NY

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of abdomen, 1 view (74018)
47%Service-mix similarity~7.9 milesView profile →

Robert Sperber, MD

Diagnostic Radiology (CMS) · Valley Stream, NY

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of abdomen, 1 view (74018)
47%Service-mix similarity~4.4 milesView profile →

Richard Zupcak, MD

Diagnostic Radiology (CMS) · Jamaica, NY

Shared published services
1 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
41%Service-mix similarity~7.5 milesView profile →

Ari Michael Steiner, MD

Diagnostic Radiology (CMS) · Garden City, NY

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of abdomen, 1 view (74018)
41%Service-mix similarity~8.8 milesView profile →

Stephen Edward Judge, DO

Diagnostic Radiology (CMS) · Oceanside, NY

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of abdomen, 1 view (74018)
35%Service-mix similarity~5.2 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.