A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Christine Kathrine Chen, MD with clinicians in the same registry specialty: Diagnostic Radiology · Interventional Radiology (CMS).

SAN DIEGO, CA · Exact areaEdit location

2024 published service data · 26 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Edward Samuel Rothenberg, MD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of foot, minimum of 3 views (73630)
  • X-ray of shoulder, minimum of 2 views (73030)
58%Service-mix similarityView profile →

Sharjeel H Sabir, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of foot, minimum of 3 views (73630)
  • X-ray of shoulder, minimum of 2 views (73030)
49%Service-mix similarityView profile →

Diane Dahlstrom Bricco, MD

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of arm and leg arteries (93922)
48%Service-mix similarityView profile →

Quinn Colin Meisinger, MD

Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
47%Service-mix similarityView profile →

Timothy Leonard Auran, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of arm and leg arteries (93922)
47%Service-mix similarityView profile →

Mitchell Thor Gudmundsson, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound of both sides of head and neck blood flow (93880)
44%Service-mix similarityView profile →

Christopher J Friend, MD

Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
38%Service-mix similarityView profile →

Anthony Samir Tadros, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • X-ray of foot, minimum of 3 views (73630)
  • X-ray of shoulder, minimum of 2 views (73030)
38%Service-mix similarityView profile →

Michael Roland Finch, M.D.

Diagnostic Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 2 views (71046)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound of both sides of head and neck blood flow (93880)
37%Service-mix similarityView profile →

Hamed Aryafar, M.D.

Diagnostic Radiology · Interventional Cardiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
25%Service-mix similarityView profile →

Zachary G. Rattner, M.D.

Interventional Radiology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound of leg arteries or artery grafts (93925)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
19%Service-mix similarityView profile →

Michael S. Girard, MD

Interventional Radiology (CMS) · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis with contrast (74177)
17%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.