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Compare the published Medicare service mix of Thomas Chung Chang with clinicians in the same registry specialty: Diagnostic Radiology · Interventional Radiology (CMS).

WASHINGTON, DC · Exact areaEdit location

2024 published service data · 16 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Karun Vashisht Sharma, M.D., PHD

Diagnostic Radiology · Interventional Radiology · Pediatric Medicine (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Insertion of central venous tube with port (5 years or older) (36561)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
47%Service-mix similarityView profile →

Rishi Rajan Sood, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Removal of plaque in artery of leg, initial vessel (37229)
  • Removal of plaque in arteries of leg (37225)
45%Service-mix similarityView profile →

Theresa Michelle Caridi, M.D.

Diagnostic Radiology (CMS) · Washington, DC

Shared published services
2 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
36%Service-mix similarityView profile →

Shawn Nath Sarin, MD

Diagnostic Radiology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Ultrasound evaluation of blood vessel with review by radiologist, initial vessel (37252)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
36%Service-mix similarityView profile →

Keith Marshall Horton, MD

Diagnostic Radiology · Interventional Radiology · Vascular Surgery (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Insertion of central venous tube with port (5 years or older) (36561)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
34%Service-mix similarityView profile →

Daniel Jonathan Scher, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Insertion of central venous tube with port (5 years or older) (36561)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
31%Service-mix similarityView profile →

Emil I Cohen, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Insertion of central venous tube with port (5 years or older) (36561)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
28%Service-mix similarityView profile →

Saher S. Sabri, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, DC

Shared published services
1 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
26%Service-mix similarityView profile →

Donna Carol Buckley, MD

Diagnostic Radiology (CMS) · Washington, DC

Shared published services
2 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
26%Service-mix similarityView profile →

Arshad A Khan, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, DC

Shared published services
2 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
23%Service-mix similarityView profile →

Haley Swanson Foster, M.D.

Interventional Radiology (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Insertion of central venous tube with port (5 years or older) (36561)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
19%Service-mix similarityView profile →

Vishal Dixit Kadakia, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Washington, DC

Shared published services
2 shared services · view billing descriptions
  • Ultrasonic guidance for blood vessel access (76937)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
19%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.