A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

FAIRFAX, VA · Exact areaEdit location

2024 published service data · 79 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Steven A Meyers, MD

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
92%Service-mix similarityView profile →

Kevin Maurice Johnson, M.D.

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
89%Service-mix similarityView profile →

Quan Duh Mayn Vu, M.D.

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
87%Service-mix similarityView profile →

Ravi Kamath, M.D., PH.D.

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
85%Service-mix similarityView profile →

Monica Nassi Abghari, M.D.

Diagnostic Radiology · Nuclear Medicine (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
48%Service-mix similarityView profile →

Thomas Christopher Alewine, M.D.

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
47%Service-mix similarityView profile →

Stephen V. Ho, M.D.

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
46%Service-mix similarityView profile →

Faris Haddad, M.D.

Specialty details in registry · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
37%Service-mix similarityView profile →

Saniya Merchant, MD

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of foot, minimum of 3 views (73630)
32%Service-mix similarityView profile →

Gary M. Kellman, MD

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 4 or more views (73564)
  • X-ray of hip, 2-3 views (73502)
21%Service-mix similarityView profile →

Sajan T Mahajan, MD

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
  • X-ray of thigh bone, minimum 2 views (73552)
20%Service-mix similarityView profile →

Alexander Beaumont Steever, M.D.

Diagnostic Radiology (CMS) · Fairfax, VA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of leg joint without contrast (73721)
  • Mri scan of arm joint without contrast (73221)
  • Mri scan of lower spinal canal without contrast (72148)
15%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.