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 Ron L Alterman, M.D. with clinicians in the same registry specialty: Neurosurgery (CMS).

BOSTON, MA · Exact areaEdit location

2024 published service data · 66 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Robert Mark Richardson, MD, PHD

Neurosurgery (CMS) · Boston, MA

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)
  • Insertion of brain neurostimulator pulse device with connection to 2 or more electrode arrays (61886)
71%Service-mix similarityView profile →

Jeffrey Stephen Schweitzer, MD

Neurosurgery (CMS) · Boston, MA

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)
  • Insertion of brain neurostimulator pulse device with connection to 2 or more electrode arrays (61886)
47%Service-mix similarityView profile →

Christopher A Alvarez-Breckenridge, MD, PHD

Neurosurgery (CMS) · Boston, MA

Shared published services
1 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)
42%Service-mix similarityView profile →

Garth Rees Cosgrove, MD, FRCSC

Neurosurgery (CMS) · Boston, MA

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)
  • Insertion of brain neurostimulator pulse device with connection to 2 or more electrode arrays (61886)
37%Service-mix similarityView profile →

Frederick George Barker, MD

Neurosurgery (CMS) · Boston, MA

Shared published services
1 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)
33%Service-mix similarityView profile →

Marie Roguski, M.D.

Neurosurgery (CMS) · Boston, MA

Shared published services
1 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)
29%Service-mix similarityView profile →

Pratik Rohatgi, M.D.

Neurosurgery (CMS) · Boston, MA

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)
  • Insertion of brain neurostimulator pulse device with connection to single electrode array (61885)
26%Service-mix similarityView profile →

Efstathios Papavassiliou, M.D.

Neurosurgery (CMS) · Boston, MA

Shared published services
1 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)
25%Service-mix similarityView profile →

John Rolston, M.D., PH.D.

Neurosurgery (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Insertion of brain neurostimulator pulse device with connection to 2 or more electrode arrays (61886)
23%Service-mix similarityView profile →

Rafael A. Vega, MD, PHD

Neurosurgery (CMS) · Boston, MA

Shared published services
1 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)
23%Service-mix similarityView profile →

Kevin Ted Huang

Neurosurgery (CMS) · Boston, MA

Shared published services
1 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)
22%Service-mix similarityView profile →

Carl Barnes Heilman, M.D.

Neurosurgery (CMS) · Boston, MA

Shared published services
1 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)
21%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.