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

SACRAMENTO, CA · Exact areaEdit location

2024 published service data · 30 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Thomas Yuchie Wu, M.D.

Interventional Radiology (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Ct scan head or brain without contrast (70450)
  • Ultrasound of both sides of head and neck blood flow (93880)
22%Service-mix similarityView profile →

Mark Mihran Davidian, M.D.

Interventional Radiology (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Ct scan head or brain without contrast (70450)
  • Ultrasound of both sides of head and neck blood flow (93880)
19%Service-mix similarityView profile →

Brian D Fellmeth, M.D.

Interventional Radiology (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Ct scan head or brain without contrast (70450)
  • Ultrasound of both sides of head and neck blood flow (93880)
17%Service-mix similarityView profile →

Timothy Nolan, MD

Interventional Radiology (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Ct scan head or brain without contrast (70450)
  • Ultrasound of both sides of head and neck blood flow (93880)
16%Service-mix similarityView profile →

Lawrence G. Davis, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
14%Service-mix similarityView profile →

Chirdeep Bhutani, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of lower spine without contrast (72131)
13%Service-mix similarityView profile →

Patrick Anthony Harty, MD

Diagnostic Radiology (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound of both sides of head and neck blood flow (93880)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Ultrasound scan of head and neck soft tissue (76536)
10%Service-mix similarityView profile →

John D. Owens, DO

Diagnostic Radiology (CMS) · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
10%Service-mix similarityView profile →

Michael W. Brown, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Sacramento, CA

Shared published services
2 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • X-ray of lower and sacral spine, minimum of 4 views (72110)
8%Service-mix similarityView profile →

Derek Vien, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Sacramento, CA

Shared published services
1 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
8%Service-mix similarityView profile →

Benjamin G Coombs, D.O.

Interventional Radiology (CMS) · Sacramento, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
8%Service-mix similarityView profile →

Amadeu Federico Santos, M.D.

Diagnostic Radiology · Nuclear Medicine (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Ct scan head or brain without contrast (70450)
  • Ultrasound scan of head and neck soft tissue (76536)
7%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.