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Compare the published Medicare service mix of John Burke, MD with clinicians in the same registry specialty: Neurosurgery (CMS).

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 43 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Aaron Clark, MD, PHD

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Incision or removal of spine bone segment, each additional segment (22216)
48%Service-mix similarityView profile →

Samer Zammar, M.D.

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
45%Service-mix similarityView profile →

Lee A Tan, M.D.

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Incision or removal of spine bone segment, each additional segment (22216)
45%Service-mix similarityView profile →

Hesham Mostafa Zakaria, MD

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
44%Service-mix similarityView profile →

Christopher P. Ames, MD

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Computer-assisted spinal procedure (61783)
42%Service-mix similarityView profile →

Nathan Byoungjun Han, MD

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
41%Service-mix similarityView profile →

Marc Andrew Prablek, MD

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
41%Service-mix similarityView profile →

Tarun Arora, MD

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
39%Service-mix similarityView profile →

Nima Alan, M.D.

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • 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)
35%Service-mix similarityView profile →

Praveen V. Mummaneni, M.D.

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • Computer-assisted spinal procedure (61783)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
32%Service-mix similarityView profile →

Leslie Christine Robinson, MD, PHARMD, MBA

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Computer-assisted spinal procedure (61783)
31%Service-mix similarityView profile →

Timothy Chryssikos, MD

Neurosurgery (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
  • Placement of stabilizing device to back, 3-6 spine bone segments (22842)
29%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.