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

BALTIMORE, MD · Exact areaEdit location

2024 published service data · 26 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Amit Kalaria, M.D.

Diagnostic Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • Dxa bone density measurement of hip, pelvis, spine (77080)
86%Service-mix similarityView profile →

Zachariah Joseph Blegen-Dipietro, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 1 view (71045)
69%Service-mix similarityView profile →

Il Kyoon Kim

Diagnostic Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • Dxa bone density measurement of hip, pelvis, spine (77080)
69%Service-mix similarityView profile →

Nabeel Mohsin Akhter, M.B.B.S

Interventional Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • Dxa bone density measurement of hip, pelvis, spine (77080)
67%Service-mix similarityView profile →

Imran Tauhid Siddiqui

Diagnostic Radiology · Interventional Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 1 view (71045)
64%Service-mix similarityView profile →

David Amadu, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • X-ray of chest, 1 view (71045)
63%Service-mix similarityView profile →

Gwendolyn Hubbell, M.D.

Diagnostic Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • Dxa bone density measurement of hip, pelvis, spine (77080)
60%Service-mix similarityView profile →

David Glen Taylor, MD

Diagnostic Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
60%Service-mix similarityView profile →

Sarah Dawood Mezban, M.D

Diagnostic Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ct scan of chest without contrast (71250)
  • Dxa bone density measurement of hip, pelvis, spine (77080)
51%Service-mix similarityView profile →

Elie Portnoy, M.D,

Diagnostic Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
47%Service-mix similarityView profile →

Jian Zhang, M.D.

Interventional Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
  • 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)
40%Service-mix similarityView profile →

Nikhil Bhagat, M.D.

Diagnostic Radiology (CMS) · Baltimore, MD

Shared published services
3 shared services · view billing descriptions
  • Aspiration of fluid from chest cavity using imaging guidance (32555)
  • 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)
40%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.