A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

ORANGE, CA · Exact areaEdit location

2024 published service data · 67 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kenneth Meng, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Screening 3d breast mammography (77063)
88%Service-mix similarityView profile →

Paul Sungyul Kim, MD

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Screening 3d breast mammography (77063)
87%Service-mix similarityView profile →

Jason S. Pang, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Screening 3d breast mammography (77063)
83%Service-mix similarityView profile →

Elizabeth Jane Cambray-Forker, D.O.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
83%Service-mix similarityView profile →

Justin Scott Lee, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Screening 3d breast mammography (77063)
82%Service-mix similarityView profile →

Christopher Lee, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Screening 3d breast mammography (77063)
82%Service-mix similarityView profile →

Samir Hemendra Shah, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
82%Service-mix similarityView profile →

Michael Thomas Forino, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Screening 3d breast mammography (77063)
81%Service-mix similarityView profile →

Hieu Trong Truong, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
80%Service-mix similarityView profile →

Tri Minh Ngo, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
80%Service-mix similarityView profile →

Andrew Lee, M.D.

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Screening 3d breast mammography (77063)
78%Service-mix similarityView profile →

Joon Kim, MD

Diagnostic Radiology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • X-ray of chest, 2 views (71046)
78%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.