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Compare the published Medicare service mix of David A Hays, 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.

Blake Brickey Jacks, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Blood creatinine level (82565)
  • Ct scan of chest with contrast (71260)
91%Service-mix similarityView profile →

Edgar St Amour, MD

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

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Blood creatinine level (82565)
  • Ct scan of chest with contrast (71260)
86%Service-mix similarityView profile →

Ruizong Li, MD

Diagnostic Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of ct guidance for needle placement (77012)
  • Biopsy and aspiration of bone marrow sample for diagnosis (38222)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
34%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
  • Ct scan of chest with contrast (71260)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
33%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
  • Review by radiologist of ct guidance for needle placement (77012)
  • Fluoroscopic guidance for needle placement (77002)
  • Biopsy and aspiration of bone marrow sample for diagnosis (38222)
29%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
  • Review by radiologist of ct guidance for needle placement (77012)
  • Fluoroscopic guidance for needle placement (77002)
  • Biopsy and aspiration of bone marrow sample for diagnosis (38222)
29%Service-mix similarityView profile →

Whitney Goodwin, MD

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

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of ct guidance for needle placement (77012)
  • Fluoroscopic guidance for needle placement (77002)
  • Biopsy and aspiration of bone marrow sample for diagnosis (38222)
28%Service-mix similarityView profile →

Kenneth V Robbins, M.D.

Interventional Radiology (CMS) · Little Rock, AR

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of ct guidance for needle placement (77012)
  • Fluoroscopic guidance for needle placement (77002)
  • Biopsy and aspiration of bone marrow sample for diagnosis (38222)
28%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 abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
  • Review by radiologist of ct guidance for needle placement (77012)
27%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 abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
  • Review by radiologist of ct guidance for needle placement (77012)
27%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
  • Review by radiologist of ct guidance for needle placement (77012)
  • Fluoroscopic guidance for needle placement (77002)
  • Biopsy and aspiration of bone marrow sample for diagnosis (38222)
25%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
  • Review by radiologist of ct guidance for needle placement (77012)
  • Fluoroscopic guidance for needle placement (77002)
  • Biopsy and aspiration of bone marrow sample for diagnosis (38222)
24%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.