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Compare the published Medicare service mix of John Francis Guynan, M.D. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

OMAHA, NE · Exact areaEdit location

2024 published service data · 100 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

William L Harrison, MD

Diagnostic Radiology (CMS) · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Limited ultrasound scan of abdomen (76705)
51%Service-mix similarityView profile →

Attila Csordas, MD

Diagnostic Radiology (CMS) · Omaha, NE

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)
  • Drainage of fluid from abdominal cavity using imaging guidance (49083)
  • Ct scan of blood vessels of abdomen and pelvis with contrast (74174)
48%Service-mix similarityView profile →

Anu Kukreja Khianey, MD

Diagnostic Radiology (CMS) · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Limited ultrasound scan of abdomen (76705)
45%Service-mix similarityView profile →

Sushama P Kunnathil, MBBS

Diagnostic Radiology · Interventional Radiology (CMS) · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • Drainage of fluid from abdominal cavity using imaging guidance (49083)
  • Ultrasonic guidance for blood vessel access (76937)
  • Injection of contrast through abdominal cavity tube for x-ray study (49424)
45%Service-mix similarityView profile →

Martin Halmes Goodenberger, M.D.

Diagnostic Radiology (CMS) · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Limited ultrasound scan of abdomen (76705)
45%Service-mix similarityView profile →

Brandon C Bunker, M.D.

Diagnostic Radiology (CMS) · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Limited ultrasound scan of abdomen (76705)
45%Service-mix similarityView profile →

Steven T Mccormack, MD

Specialty details in registry · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Limited ultrasound scan of abdomen (76705)
45%Service-mix similarityView profile →

Kiran Kumar Reddy Busireddy, M.D

Diagnostic Radiology (CMS) · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Limited ultrasound scan of abdomen (76705)
44%Service-mix similarityView profile →

Monjari Gillian, M.D.

Diagnostic Radiology (CMS) · Omaha, NE

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)
44%Service-mix similarityView profile →

Benjamin Andrew Maertins, M.D.

Diagnostic Radiology (CMS) · Omaha, NE

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)
  • Drainage of fluid from abdominal cavity using imaging guidance (49083)
  • Ultrasonic guidance for blood vessel access (76937)
44%Service-mix similarityView profile →

Neil Joseph Hansen, M.D.

Diagnostic Radiology (CMS) · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Limited ultrasound scan of abdomen (76705)
44%Service-mix similarityView profile →

Ryan Thomas Downey, M.D.

Diagnostic Radiology (CMS) · Omaha, NE

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Limited ultrasound scan of abdomen (76705)
44%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.