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Similar work.
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Compare the published Medicare service mix of Michael Kenneth Rosner, MD with clinicians in the same registry specialty: Neurosurgery (CMS).

WASHINGTON, DC · Exact areaEdit location

2024 published service data · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Robert Bryan Mason, M.D.

Neurosurgery (CMS) · Washington, DC

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 a high level of medical decision making, if using time, 60 minutes or more (99205)
58%Service-mix similarityView profile →

Anna R Terry, M.D.

Neurosurgery (CMS) · Washington, DC

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)
  • 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)
55%Service-mix similarityView profile →

Joshua Michael Ammerman, M.D.

Neurosurgery (CMS) · Washington, DC

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)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
53%Service-mix similarityView profile →

Matthew D Ammerman, MD

Neurosurgery (CMS) · Washington, DC

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)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
49%Service-mix similarityView profile →

Kevin Mcgrail

Neurosurgery (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
46%Service-mix similarityView profile →

John Phillips Lynes

Neurosurgery (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
46%Service-mix similarityView profile →

Christopher Kalhorn

Neurosurgery (CMS) · Washington, DC

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)
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
41%Service-mix similarityView profile →

Vinay Deshmukh, MD

Neurosurgery (CMS) · Washington, DC

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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
39%Service-mix similarityView profile →

Vikram V Nayar, M.D.

Neurosurgery (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
35%Service-mix similarityView profile →

Edward F Aulisi, MD

Neurosurgery (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine with partial removal of spine bone and disc (22634)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Fusion of spine in lower back with partial removal of spine bone and disc (22633)
29%Service-mix similarityView profile →

Mani Nathan Nair, MD

Neurosurgery (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
28%Service-mix similarityView profile →

Carlos Esmond Sanchez, M.D.

Neurosurgery · Pediatric Medicine (CMS) · Washington, DC

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
28%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.