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Compare the published Medicare service mix of Christopher M Harnain, M.D., M.B.A. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

FAIR LAWN, NJ · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 16 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Clayton Li, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Hackensack, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • X-ray of chest, 2 views (71046)
62%Service-mix similarity~4.7 milesView profile →

Daniel Marc Eisman, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Teaneck, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
52%Service-mix similarity~6.2 milesView profile →

Jaskirat Singh Virk, MD

Diagnostic Radiology (CMS) · Hackensack, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasonic guidance for blood vessel access (76937)
52%Service-mix similarity~4.7 milesView profile →

Jason Gruener, MD

Diagnostic Radiology (CMS) · Hackensack, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasonic guidance for blood vessel access (76937)
49%Service-mix similarity~4.7 milesView profile →

Anoop Suresh Wattamwar, MD

Diagnostic Radiology (CMS) · Hackensack, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasonic guidance for blood vessel access (76937)
47%Service-mix similarity~4.7 milesView profile →

Fred Berlin, MD

Diagnostic Radiology (CMS) · Hackensack, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • X-ray of chest, 2 views (71046)
44%Service-mix similarity~4.7 milesView profile →

George J Ferrone, MD

Diagnostic Radiology (CMS) · Hackensack, NJ

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • X-ray of chest, 2 views (71046)
  • Ct scan of abdomen and pelvis with contrast (74177)
43%Service-mix similarity~4.7 milesView profile →

Vincent Gallo, MD

Interventional Radiology (CMS) · Teaneck, NJ

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasonic guidance for blood vessel access (76937)
  • Fluoroscopic guidance for insertion or removal of central vein access device (77001)
37%Service-mix similarity~6.2 milesView profile →

Kevin Herman, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Teaneck, NJ

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasonic guidance for blood vessel access (76937)
35%Service-mix similarity~6.2 milesView profile →

Elsie Koh, MD

Diagnostic Radiology · Interventional Radiology (CMS) · Woodland Park, NJ

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasound study of one arm or leg veins with compression and maneuvers (93971)
  • Ultrasonic guidance for blood vessel access (76937)
31%Service-mix similarity~6.2 milesView profile →

John Rundback, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Teaneck, NJ

Shared published services
3 shared services · view billing descriptions
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)
  • Ultrasonic guidance for blood vessel access (76937)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
31%Service-mix similarity~6.2 milesView profile →

Benjamin Lingshaw Yam, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Hackensack, NJ

Shared published services
2 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan of chest without contrast (71250)
30%Service-mix similarity~4.7 milesView 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 approximate distance 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.