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Compare the published Medicare service mix of Salvatore Zavarella, DO with clinicians in the same registry specialty: Neurosurgery (CMS).

WEST ISLIP, NY · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Salvatore Insinga, D.O.

Neurosurgery (CMS) · West Islip, 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)
  • Mri scan of lower spinal canal without contrast (72148)
79%Service-mix similarityView profile →

Joshua Everette Ryan, MD

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Mri scan of lower spinal canal without contrast (72148)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
66%Service-mix similarityView profile →

Borimir J Darakchiev, MD

Neurosurgery (CMS) · West Islip, 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)
  • Mri scan of lower spinal canal without contrast (72148)
50%Service-mix similarityView profile →

Vassilios G. Dimopoulos, M.D.

Neurosurgery (CMS) · West Islip, NY

Shared published services
2 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)
47%Service-mix similarityView profile →

Amrit Chiluwal

Neurosurgery (CMS) · West Islip, 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)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
43%Service-mix similarityView profile →

Salvatore J Palumbo, MD

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of upper spinal canal without contrast (72141)
41%Service-mix similarityView profile →

William E Mccormick, MD

Neurosurgery (CMS) · West Islip, 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)
  • Mri scan of lower spinal canal without contrast (72148)
36%Service-mix similarityView profile →

Raymond Michael Baule, MD

Neurosurgery (CMS) · West Islip, NY

Shared published services
2 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)
36%Service-mix similarityView profile →

Nitin Rajkumar Mariwalla, MD, MPH, MS

Neurosurgery (CMS) · West Islip, NY

Shared published services
2 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)
33%Service-mix similarityView profile →

Brian Jeffrey Mchugh, M.D.

Neurosurgery (CMS) · West Islip, NY

Shared published services
2 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)
32%Service-mix similarityView profile →

Kevin Mullins, MD

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
  • Imaging guidance for procedure, 60 minutes or less (76000)
32%Service-mix similarityView profile →

David Phillips, M.D.

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of lower and sacral spine, 2-3 views (72100)
27%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.