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Compare the published Medicare service mix of Lien T Senchak, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

BETHESDA, MD · Exact areaEdit location

2024 published service data · 19 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Dawood Tafti, M.D.

Diagnostic Radiology · Nuclear Medicine (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
60%Service-mix similarityView profile →

Mahejabeen Japanwalla, MD

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
55%Service-mix similarityView profile →

Amit Newatia, M.D.

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
51%Service-mix similarityView profile →

Brent Mccarragher, MD

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
47%Service-mix similarityView profile →

Alan Cohen, M.D.

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
47%Service-mix similarityView profile →

Hugh Michael Dainer, MD, PHD, MBA

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
43%Service-mix similarityView profile →

Nishant Kumar, M.D.

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
39%Service-mix similarityView profile →

Nicholas Chase Silvester, D.O.

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
38%Service-mix similarityView profile →

Peter Daniel Snyder, M.D.

Specialty details in registry · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
37%Service-mix similarityView profile →

Zachary Mitchell Alexander, M.D.

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
37%Service-mix similarityView profile →

Amir R Batouli, M.D.

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
35%Service-mix similarityView profile →

Grant Howard Bonavia, M.D.

Diagnostic Radiology (CMS) · Bethesda, MD

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
27%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.