A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

CHICAGO, IL · Exact areaEdit location

2024 published service data · 319 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kyle David Basques, M.D.

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
80%Service-mix similarityView profile →

Ammar Al-Saraf, M.D.

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
80%Service-mix similarityView profile →

Megan Chandran, DO

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
79%Service-mix similarityView profile →

Andrew J Johanek

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
79%Service-mix similarityView profile →

Ronald Thant, M.D.

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
79%Service-mix similarityView profile →

Kevin O'brien, MD

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
79%Service-mix similarityView profile →

Santhosh Paul Joseph, M.D.

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
78%Service-mix similarityView profile →

Ali Mostafa Serhal, M.D

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan of leg without contrast (73700)
78%Service-mix similarityView profile →

Brian Gilcrease-Garcia, M.D.

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan of leg without contrast (73700)
77%Service-mix similarityView profile →

Haran Rajeswaran, MD

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
77%Service-mix similarityView profile →

Joshua Alan Weiss, D.O.

Diagnostic Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
77%Service-mix similarityView profile →

Ryan M Dhaemers, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
76%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.