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Compare the published Medicare service mix of Shahram Majidi, M.D. with clinicians in the same registry specialty: Diagnostic Radiology · Neurology · Neurosurgery (CMS).

NEW YORK, NY · Exact areaEdit location

2024 published service data · 86 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jared Knopman, MD

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Imaging of blood vessel (75898)
  • Occlusion of central nervous system or spinal cord artery (61624)
76%Service-mix similarityView profile →

J. Duffy Mocco, MD

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Imaging of blood vessel (75898)
  • Occlusion of central nervous system or spinal cord artery (61624)
75%Service-mix similarityView profile →

Thomas W Link, M.D., M.S.

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Imaging of blood vessel (75898)
  • Occlusion of central nervous system or spinal cord artery (61624)
67%Service-mix similarityView profile →

Michael Travis Caton, M.D.

Diagnostic Radiology · Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist (36224)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
67%Service-mix similarityView profile →

Christopher Paul Kellner, M.D.

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Imaging of blood vessel (75898)
  • Occlusion of central nervous system or spinal cord artery (61624)
62%Service-mix similarityView profile →

Howard A Riina, M.D.

Interventional Radiology · Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of blood vessel (75898)
  • Occlusion of central nervous system or spinal cord artery (61624)
  • Review by radiologist of image for insertion of material to block blood flow (75894)
59%Service-mix similarityView profile →

Reade Andrew De Leacy, M.D.

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist (36224)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
57%Service-mix similarityView profile →

Tomoyoshi Shigematsu, M.D., PH.D.

Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of blood vessel (75898)
  • Occlusion of central nervous system or spinal cord artery (61624)
  • Review by radiologist of image for insertion of material to block blood flow (75894)
55%Service-mix similarityView profile →

Grace Kim Mandigo, M.D.

Interventional Radiology · Neurosurgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist (36224)
  • Insertion of tube into intracranial artery for diagnosis or treatment with review by radiologist (36223)
  • Insertion of tube into external neck artery for diagnosis or treatment with review by radiologist (36227)
54%Service-mix similarityView profile →

Erez Nossek, M.D.

Neurosurgery · Vascular Surgery (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Occlusion of central nervous system or spinal cord artery (61624)
  • Review by radiologist of image for insertion of material to block blood flow (75894)
  • Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist (36224)
52%Service-mix similarityView profile →

Nirit Weiss, M.D.

Neurosurgery (CMS) · New York, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
49%Service-mix similarityView profile →

Hazem M. Shoirah, M.D.

Diagnostic Radiology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist (36224)
  • Insertion of tube into brain artery for diagnosis or treatment with review by radiologist (36226)
47%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.