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Compare the published Medicare service mix of Steven S Raman, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 58 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David S Lu, MD

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of abdomen before and after contrast (74183)
  • Mri scan of pelvis before and after contrast (72197)
  • 3d radiographic procedure with computerized image postprocessing (76377)
82%Service-mix similarityView profile →

Matthew Quirk, M.D.

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Mri scan of abdomen before and after contrast (74183)
  • Mri scan of pelvis before and after contrast (72197)
  • 3d radiographic procedure with computerized image postprocessing (76377)
74%Service-mix similarityView profile →

Michael Douek, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Mri scan of abdomen before and after contrast (74183)
  • Mri scan of pelvis before and after contrast (72197)
  • X-ray of abdomen, 1 view (74018)
58%Service-mix similarityView profile →

Simin Bahrami, MD

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

Shared published services
3 shared services · view billing descriptions
  • Mri scan of abdomen before and after contrast (74183)
  • Mri scan of pelvis before and after contrast (72197)
  • X-ray of abdomen, 1 view (74018)
56%Service-mix similarityView profile →

Chih-Sheng Jason Chiang, M.D., PH.D.

Diagnostic Radiology (CMS) · Los Angeles, 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)
  • Ultrasonic guidance for needle placement (76942)
46%Service-mix similarityView profile →

Joseph R Kallini, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Mri scan of abdomen before and after contrast (74183)
  • X-ray of abdomen, 1 view (74018)
  • Ct scan of abdomen and pelvis with contrast (74177)
45%Service-mix similarityView profile →

Justin P Mcwilliams, MD

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

Shared published services
3 shared services · view billing descriptions
  • 3d radiographic procedure with computerized image postprocessing (76377)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
43%Service-mix similarityView profile →

Ajita Deodhar, M.D

Diagnostic Radiology (CMS) · Los Angeles, 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 before and after contrast (74178)
  • Ct scan of abdomen and pelvis without contrast (74176)
37%Service-mix similarityView profile →

Donny Baek, MD

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of abdomen, 1 view (74018)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of abdomen and pelvis before and after contrast (74178)
35%Service-mix similarityView profile →

Zhaoying Xian, MD

Interventional Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of abdomen, 1 view (74018)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of abdomen and pelvis without contrast (74176)
32%Service-mix similarityView profile →

Tyler Eugene Callese, MD

Diagnostic Radiology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of abdomen, 1 view (74018)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of abdomen and pelvis without contrast (74176)
31%Service-mix similarityView profile →

Frank Hao, M.D.

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

Shared published services
3 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Ultrasonic guidance for needle placement (76942)
31%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.