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Compare the published Medicare service mix of James Kryzanski, MD 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.

Ron I Riesenburger, MD

Neurosurgery (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Aspiration of bone marrow for spine bone graft (20939)
  • 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)
90%Service-mix similarityView profile →

John H Chi, MD

Neurosurgery (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Fusion of spine in lower back with partial removal of spine bone and disc (22633)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • Placement of stabilizing device to back of 1 spine bone in neck (22840)
76%Service-mix similarityView profile →

Mina G Safain, M.D.

Neurosurgery (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Aspiration of bone marrow for spine bone graft (20939)
  • 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)
68%Service-mix similarityView profile →

Jason Pierce Rahal, M.D.

Neurosurgery (CMS) · Boston, MA

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)
  • Fusion of spine in lower back with partial removal of spine bone and disc (22633)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
68%Service-mix similarityView profile →

Hiren N Patel, D.O.

Neurosurgery (CMS) · Boston, MA

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)
  • Fusion of spine in lower back with partial removal of spine bone and disc (22633)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
61%Service-mix similarityView profile →

Yi Lu, M.D., PH.D.

Neurosurgery (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Fusion of spine in lower back with partial removal of spine bone and disc (22633)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • Placement of stabilizing device to back of 1 spine bone in neck (22840)
60%Service-mix similarityView profile →

Dustin James Donnelly, MD, PHD

Neurosurgery (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Fusion of spine in lower back with partial removal of spine bone and disc (22633)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • Partial removal of bone of single segment of spine in lower back with release of spinal cord and/or nerves during fusion of spine in lower back (63052)
60%Service-mix similarityView profile →

Efstathios Papavassiliou, M.D.

Neurosurgery (CMS) · Boston, MA

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 moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
60%Service-mix similarityView profile →

Ganesh M Shankar, MD, PHD

Neurosurgery (CMS) · Boston, MA

Shared published services
3 shared services · view billing descriptions
  • Fusion of spine in lower back with partial removal of spine bone and disc (22633)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • Placement of stabilizing device to back of 1 spine bone in neck (22840)
60%Service-mix similarityView profile →

Jean Valery Charles Emile Coumans, MD

Neurosurgery (CMS) · Boston, MA

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)
  • Placement of stabilizing device to back of 1 spine bone in neck (22840)
  • 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 →

Muhammad M Abd-El-Barr, M.D., PH.D.

Neurosurgery (CMS) · Boston, MA

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)
  • 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)
56%Service-mix similarityView profile →

Kevin Ted Huang

Neurosurgery (CMS) · Boston, MA

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)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • Placement of stabilizing device to back of 1 spine bone in neck (22840)
55%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.