HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Y Vien Tran Nguyen, D.O. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

MISSION VIEJO, CA · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 29 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Akash C. Joshi, MD

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest with contrast (71260)
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
58%Service-mix similarity~17.8 milesView profile →

Michael Kabiri, MD

Interventional Radiology (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis without contrast (74176)
  • Low dose ct scan of chest for lung cancer screening (71271)
54%Service-mix similarity~18.4 milesView profile →

Arti Gupta, MD

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

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest with contrast (71260)
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
46%Service-mix similarity~17.8 milesView profile →

Huan Nguyen Tran, MD

Interventional Radiology (CMS) · Riverside, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of abdomen and pelvis without contrast (74176)
  • X-ray of chest, 1 view (71045)
44%Service-mix similarity~23.4 milesView profile →

Amilcar Diaz, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest with contrast (71260)
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
43%Service-mix similarity~17.8 milesView profile →

Paul Tung, D.O.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest with contrast (71260)
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
42%Service-mix similarity~17.8 milesView profile →

Peter Wong, MD

Interventional Radiology (CMS) · Riverside, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of abdomen and pelvis without contrast (74176)
  • X-ray of chest, 1 view (71045)
41%Service-mix similarity~23.4 milesView profile →

Wei-Chao Chang, MD

Diagnostic Radiology (CMS) · Anaheim, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of abdomen and pelvis without contrast (74176)
  • X-ray of chest, 1 view (71045)
40%Service-mix similarity~18.4 milesView profile →

Gerald K. Lee, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of abdomen and pelvis without contrast (74176)
  • X-ray of chest, 2 views (71046)
39%Service-mix similarity~17.8 milesView profile →

Sung Hi Pak, MD

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

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
38%Service-mix similarity~18.4 milesView profile →

Justin Glavis-Bloom, MD

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest with contrast (71260)
  • Ct scan of chest without contrast (71250)
  • Ct scan of abdomen and pelvis with contrast (74177)
37%Service-mix similarity~17.8 milesView profile →

Reza Sirous, M.D., MPH

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of chest with contrast (71260)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of abdomen and pelvis without contrast (74176)
37%Service-mix similarity~17.8 milesView 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 approximate distance 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.