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Compare the published Medicare service mix of David Phillips, M.D. 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.

Symeon Missios, M.D.

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with low level of medical decision making (99283)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of head or brain before and after contrast (70470)
74%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 low level od decision making, if using time, 20 minutes or more (99213)
  • Mri scan of lower spinal canal without contrast (72148)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
52%Service-mix similarityView profile →

Salvatore J Palumbo, MD

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Mri scan of lower spinal canal without contrast (72148)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
51%Service-mix similarityView profile →

William E Mccormick, MD

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Mri scan of lower spinal canal without contrast (72148)
41%Service-mix similarityView profile →

Kimon Bekelis, M.D.

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with low level of medical decision making (99283)
  • Ct scan head or brain without contrast (70450)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
39%Service-mix similarityView profile →

Brian Jeffrey Mchugh, M.D.

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
35%Service-mix similarityView profile →

Amrit Chiluwal

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
31%Service-mix similarityView profile →

Nitin Rajkumar Mariwalla, MD, MPH, MS

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
30%Service-mix similarityView profile →

Salvatore Zavarella, DO

Neurosurgery (CMS) · West Islip, NY

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

Joshua Everette Ryan, MD

Neurosurgery (CMS) · West Islip, NY

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • 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 upper spinal canal without contrast (72141)
27%Service-mix similarityView profile →

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Mri scan of lower spinal canal without contrast (72148)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
26%Service-mix similarityView profile →

Raymond Michael Baule, MD

Neurosurgery (CMS) · West Islip, NY

Shared published services
2 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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
25%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.