A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Michael S Hepfer, MD with clinicians in the same registry specialty: Diagnostic Radiology · Internal Medicine · Pediatric Medicine (CMS).

NORTHRIDGE, CA · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Rajiv Purnachandra Pai, M.D.

Interventional Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
65%Service-mix similarityView profile →

Lucas B Payor, MD

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
57%Service-mix similarityView profile →

Kellie D. Curtis, MD

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Limited ultrasound scan of abdomen (76705)
  • X-ray of chest, 2 views (71046)
53%Service-mix similarityView profile →

Anish Jagdish Patel, M.D.

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
51%Service-mix similarityView profile →

Christopher Bedford, M.D.

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
50%Service-mix similarityView profile →

Jeremy Wong Chin, M.D.

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Limited ultrasound scan of abdomen (76705)
49%Service-mix similarityView profile →

Tzyy Shyang Chao, M.D.

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

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
35%Service-mix similarityView profile →

Parizad Hooshi, M.D.

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • Ultrasound study of arm or leg veins with compression and maneuvers (93970)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasound of both sides of head and neck blood flow (93880)
31%Service-mix similarityView profile →

Ryan Franke

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • X-ray of shoulder, minimum of 2 views (73030)
15%Service-mix similarityView profile →

Michael Zaghi, M.D.

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • 3d radiographic procedure (76376)
12%Service-mix similarityView profile →

Varand Ghazikhanian, MD

Diagnostic Radiology (CMS) · Northridge, CA

Shared published services
3 shared services · view billing descriptions
  • Limited ultrasound scan of joint or other extremity structure except blood vessels (76882)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of hip, 2-3 views (73502)
10%Service-mix similarityView profile →

Geraldine Chang, M.D.

Diagnostic Radiology · Interventional Radiology · Nuclear Medicine (CMS) · Northridge, CA

Shared published services
1 shared services · view billing descriptions
  • Limited ultrasound scan of joint or other extremity structure except blood vessels (76882)
3%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.