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Compare the published Medicare service mix of Michael J Long, M.D. with clinicians in the same registry specialty: 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.

John F Burda, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 2 views (71046)
75%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
  • X-ray of chest, 1 view (71045)
  • Dxa bone density measurement of hip, pelvis, spine (77080)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
68%Service-mix similarityView profile →

Douglas E. Elliott, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 2 views (71046)
56%Service-mix similarityView profile →

Whitney Goodwin, MD

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)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Review by radiologist of ct guidance for needle placement (77012)
51%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
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Review by radiologist of ct guidance for needle placement (77012)
51%Service-mix similarityView profile →

Megan Chang, 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)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Review by radiologist of ct guidance for needle placement (77012)
49%Service-mix similarityView profile →

Edward E Angtuaco, M.D.

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

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)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
48%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
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Review by radiologist of ct guidance for needle placement (77012)
47%Service-mix similarityView profile →

Kenneth V Robbins, M.D.

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)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Review by radiologist of ct guidance for needle placement (77012)
46%Service-mix similarityView profile →

Joseph Steven Konrad, 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)
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Review by radiologist of ct guidance for needle placement (77012)
44%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
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Review by radiologist of ct guidance for needle placement (77012)
  • Ct scan of blood vessels of neck with contrast (70498)
43%Service-mix similarityView profile →

Timothy Mccowan, MD

Specialty details in registry · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • X-ray of abdomen, 1 view (74018)
41%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.