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

LITTLE ROCK, AR · Exact areaEdit location

2024 published service data · 21 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Joseph Steven Konrad, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
91%Service-mix similarityView profile →

Craig Steeds, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
89%Service-mix similarityView profile →

Thomas E St Amour, M.D.

Diagnostic Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
88%Service-mix similarityView profile →

Kenneth V Robbins, M.D.

Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
87%Service-mix similarityView profile →

Whitney Goodwin, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
81%Service-mix similarityView profile →

David Sharpe Heister, M.D. PH.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
77%Service-mix similarityView profile →

John F Burda, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
50%Service-mix similarityView profile →

Michael J Long, M.D.

Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Ct scan of blood vessels of neck with contrast (70498)
  • Ct scan of blood vessels of head with contrast (70496)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
49%Service-mix similarityView profile →

Ruizong Li, MD

Diagnostic Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasonic guidance for blood vessel access (76937)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
45%Service-mix similarityView profile →

Abhishek Laxmi Narasimha Thummalakunta, M.D., MPH

Diagnostic Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ct scan of blood vessels of abdomen and pelvis with contrast (74174)
  • Ultrasound of both sides of head and neck blood flow (93880)
38%Service-mix similarityView profile →

Charles T Burke, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ct scan of blood vessels of abdomen and pelvis with contrast (74174)
  • Ultrasonic guidance for blood vessel access (76937)
37%Service-mix similarityView profile →

James Christopher Meek, D.O.

Diagnostic Radiology · Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ct scan of blood vessels of abdomen and pelvis with contrast (74174)
  • Ct scan of abdominal aorta and both leg arteries with contrast (75635)
37%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.