HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of William Christopher Newman, M.D. with clinicians in the same registry specialty: Neurosurgery (CMS).

NEW YORK, NY · Exact areaEdit location

2024 published service data · 86 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mark H Bilsky, MD

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
73%Service-mix similarityView profile →

Christopher Eliot Mandigo, M.D.

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
69%Service-mix similarityView profile →

Ali A Baaj, M.D.

Neurosurgery · Pediatric Medicine (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
66%Service-mix similarityView profile →

Sanjay Konakondla, M.D.

Specialty details in registry · New York, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
64%Service-mix similarityView profile →

Peter Douglas Angevine, M.D.

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
63%Service-mix similarityView profile →

Michael Singh Virk, M.D., PH.D.

Neurosurgery (CMS) · New York, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Computer-assisted spinal procedure (61783)
63%Service-mix similarityView profile →

Sean David Lavine, M.D.

Neurosurgery (CMS) · New York, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
60%Service-mix similarityView profile →

Roger Hartl, MD

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
59%Service-mix similarityView profile →

Kai-Ming G Fu, MD, PH.D.

Neurosurgery (CMS) · New York, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
59%Service-mix similarityView profile →

Justin Anthony Neira, M.D.

Neurosurgery (CMS) · New York, NY

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
58%Service-mix similarityView profile →

Ilya Laufer, M.D.

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Placement of stabilizing device to back, 3-6 spine bone segments (22842)
55%Service-mix similarityView profile →

Dean Chou, MD

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
53%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.