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

CHICAGO, IL · Exact areaEdit location

2024 published service data · 58 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Richard W. Crowley, M.D.

Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Imaging of blood vessel (75898)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
73%Service-mix similarityView profile →

William Metcalf-Doetsch, MD

Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Imaging of blood vessel (75898)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Review by radiologist of image for insertion of material to block blood flow (75894)
65%Service-mix similarityView profile →

Omar Aftab Choudhri, M.D.

Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Imaging of blood vessel (75898)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Review by radiologist of image for insertion of material to block blood flow (75894)
58%Service-mix similarityView profile →

Stephan Munich, M.D.

Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Imaging of blood vessel (75898)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Review by radiologist of image for insertion of material to block blood flow (75894)
57%Service-mix similarityView profile →

Matthew J. Koch, MD

Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Imaging of blood vessel (75898)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Review by radiologist of image for insertion of material to block blood flow (75894)
54%Service-mix similarityView profile →

Roger A. Lichtenbaum, M.D.

Neurosurgery (CMS) · Chicago, IL

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 low level of medical decision making, if using time, 30 minutes or more (99203)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
45%Service-mix similarityView profile →

Rizwan Tahir, M.D.

Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Imaging of blood vessel (75898)
  • Review by radiologist of image for insertion of material to block blood flow (75894)
  • Occlusion of central nervous system or spinal cord artery (61624)
40%Service-mix similarityView profile →

Matthew Christopher Tate, M.D., PH.D.

Neurosurgery (CMS) · Chicago, IL

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)
  • Telephone medical discussion with physician, 21-30 minutes (99443)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
40%Service-mix similarityView profile →

Gerald Michael Lemole, M.D.

Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • 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 low level od decision making, if using time, 20 minutes or more (99213)
37%Service-mix similarityView profile →

Andrew Kelly Johnson, M.D.

Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • 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 low level of medical decision making, if using time, 30 minutes or more (99203)
37%Service-mix similarityView profile →

Gursant Atwal, M.D.

Interventional Radiology · Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube into external neck artery for diagnosis or treatment with review by radiologist (36227)
  • 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)
36%Service-mix similarityView profile →

Ali Alaraj, M.D

Interventional Radiology · Neurosurgery (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Insertion of tube into external neck artery for diagnosis or treatment with review by radiologist (36227)
  • 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)
36%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.