A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 383 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Alan Richard Lee, MD

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
93%Service-mix similarityView profile →

Jason Taeki Yoon, MD

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
93%Service-mix similarityView profile →

Matthew Scott Carr, MD

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
91%Service-mix similarityView profile →

Shahnaz Ghahremani Koureh, M.D.

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
89%Service-mix similarityView profile →

Naomi Eiko Walker

Diagnostic Radiology · Interventional Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
82%Service-mix similarityView profile →

Christopher T. Hsu, M.D.

Diagnostic Radiology · Nuclear Medicine (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • X-ray of chest, 2 views (71046)
82%Service-mix similarityView profile →

Michael Hailong Ngo, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of blood vessels of chest with contrast (71275)
81%Service-mix similarityView profile →

Jonathan Lin

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
81%Service-mix similarityView profile →

Catherine Ann Mcnulty, MD

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
81%Service-mix similarityView profile →

Faraien Salman Bahri

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
81%Service-mix similarityView profile →

Tyler Robert Toth

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
81%Service-mix similarityView profile →

Kaleigh Marie Ritchie, DO

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
81%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.