A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

ORANGE, CA · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Fataneh Sarlati, MD

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
92%Service-mix similarityView profile →

Karen Nguyen Tran-Harding, 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)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
91%Service-mix similarityView profile →

Rony V Kampalath, 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)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
87%Service-mix similarityView profile →

James Shi, 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)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
87%Service-mix similarityView profile →

Garrett Graham Ward, 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)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
86%Service-mix similarityView profile →

Justin Glavis-Bloom, MD

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
83%Service-mix similarityView profile →

Arti Gupta, MD

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

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
76%Service-mix similarityView 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)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
73%Service-mix similarityView profile →

Akash C. Joshi, MD

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Mri scan of pelvis before and after contrast (72197)
63%Service-mix similarityView profile →

Reza Sirous, M.D., MPH

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Mri scan of pelvis before and after contrast (72197)
  • Limited ultrasound scan of abdomen (76705)
60%Service-mix similarityView profile →

Martin Roberto Goyenechea, MD

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

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis with contrast (74177)
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • X-ray of abdomen, 1 view (74018)
56%Service-mix similarityView profile →

Mohammad Helmy, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Limited ultrasound scan of abdomen (76705)
  • X-ray of abdomen, 1 view (74018)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
54%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.