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Compare the published Medicare service mix of Herbert E. Greenman, M.D. with clinicians in the same registry specialty: Ophthalmology.

CHARLOTTE, NC · Exact areaEdit location

2024 published service data · 49 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Adrian Jay Elfersy, M.D.

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
90%Service-mix similarityView profile →

Ian Kirchner, M.D.

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
88%Service-mix similarityView profile →

Joel Vincent Kaluzny, MD

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
87%Service-mix similarityView profile →

Sumit Kumar Gupta, MD

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
86%Service-mix similarityView profile →

Pujan Bhavin Dave, MD

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
86%Service-mix similarityView profile →

Barbara Miller Lee, MD

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
84%Service-mix similarityView profile →

Vandana Raghupathy Minnal, M.D.

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
84%Service-mix similarityView profile →

Wlliam Arthur Branner, M.D.

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
84%Service-mix similarityView profile →

Joseph Hoffmann Krug, MD

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Measurement of corneal curvature and depth of eye (92136)
83%Service-mix similarityView profile →

Jeffrey Ryan Stetler, MD

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
83%Service-mix similarityView profile →

Jonathan Shreve Minkowski, M.D.

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
83%Service-mix similarityView profile →

Royce Rosario Syracuse, MD

Ophthalmology · Charlotte, NC

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
82%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.