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

INDIANAPOLIS, IN · Exact areaEdit location

2024 published service data · 14 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ian Kainoa White, M.D.

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)
59%Service-mix similarityView profile →

Christopher David Wilson, M.D.

Neurosurgery (CMS) · Indianapolis, IN

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 moderate level of decision making, if using time, 30 minutes or more (99214)
52%Service-mix similarityView profile →

Jamie Lee Bradbury, MD

Neurosurgery (CMS) · Indianapolis, IN

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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
49%Service-mix similarityView profile →

David William Stockwell

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
2 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)
37%Service-mix similarityView profile →

David A Purger, MD, PHD

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
35%Service-mix similarityView profile →

James Christopher Miller, M.D.

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
3 shared services · view billing descriptions
  • Fusion of additional segment of spine (22614)
  • Computer-assisted spinal procedure (61783)
  • Placement of stabilizing device to back, 3-6 spine bone segments (22842)
34%Service-mix similarityView profile →

Mark Hoeprich, M.D.

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
2 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 moderate level of decision making, if using time, 30 minutes or more (99214)
29%Service-mix similarityView profile →

Thomas C Witt, M.D.

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
2 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 moderate level of decision making, if using time, 30 minutes or more (99214)
28%Service-mix similarityView profile →

Daniel Bruce Eddelman, M.D.

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
2 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 moderate level of decision making, if using time, 30 minutes or more (99214)
26%Service-mix similarityView profile →

Robert B Sloan, MD

Neurosurgery (CMS) · Indianapolis, IN

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 moderate level of decision making, if using time, 30 minutes or more (99214)
  • Computer-assisted spinal procedure (61783)
24%Service-mix similarityView profile →

Jill Wright Donaldson, MD

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Computer-assisted spinal procedure (61783)
  • Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)
20%Service-mix similarityView profile →

Kenneth Adam Moore, MD

Neurosurgery (CMS) · Indianapolis, IN

Shared published services
2 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 moderate level of decision making, if using time, 30 minutes or more (99214)
20%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.