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

SAINT LOUIS, MO · Exact areaEdit location

2024 published service data · 42 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Daniel M Hafez, MD

Neurosurgery (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
78%Service-mix similarityView profile →

Camilo Molina, MD

Neurosurgery (CMS) · Saint Louis, MO

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
71%Service-mix similarityView profile →

John Ogunlade, DO

Neurosurgery (CMS) · Saint Louis, MO

Shared published services
3 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)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
70%Service-mix similarityView profile →

Brendan Manuel Fong, M.D.

Neurosurgery (CMS) · Saint Louis, MO

Shared published services
3 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
63%Service-mix similarityView profile →

Peter Sylvester

Neurology (CMS) · Saint Louis, MO

Shared published services
3 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)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
61%Service-mix similarityView profile →

Tobias Alecio Mattei, M.D.

Neurosurgery (CMS) · Saint Louis, MO

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
60%Service-mix similarityView profile →

Tanya M Quinn, M.D.

Neurosurgery (CMS) · Saint Louis, MO

Shared published services
3 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)
  • 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)
59%Service-mix similarityView profile →

Albert Hong-Jae Kim, MD

Neurosurgery (CMS) · Saint Louis, MO

Shared published services
3 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)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
  • 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 →

Terrence Fletcher Holekamp, M.D., PH.D.

Neurosurgery (CMS) · Saint Louis, MO

Shared published services
3 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)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
58%Service-mix similarityView profile →

Alex Patrick Michael, MD

Neurology · Neurosurgery (CMS) · Saint Louis, MO

Shared published services
3 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)
  • 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)
58%Service-mix similarityView profile →

Justin Michael Sweeney, M.D.

Neurosurgery (CMS) · Saint Louis, MO

Shared published services
3 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
57%Service-mix similarityView profile →

Wilson Zachary Ray, MD

Neurosurgery (CMS) · Saint Louis, MO

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)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
57%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.