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Compare the published Medicare service mix of Gwenda Renee' Gnadt, O.D., M.P.H. with clinicians in the same registry specialty: Optometrist.

NY · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Farshad Haiimpour, O.D

Optometrist · Jamaica, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
91%Service-mix similarityView profile →

Kamaljit Singh Westfall, O.D.

Optometrist · Glens Falls, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
89%Service-mix similarityView profile →

Bessie Thomas, OD

Optometrist · New Hyde Park, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
87%Service-mix similarityView profile →

Julia Canestraro, O.D.

Optometrist · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
87%Service-mix similarityView profile →

Larina Raquel Rosa, O.D.

Optometrist · Manhasset, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
86%Service-mix similarityView profile →

Jordan S Kassalow, OD

Optometrist · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
86%Service-mix similarityView profile →

Susan A Resnick, OD

Optometrist · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
86%Service-mix similarityView profile →

Nadine Amy Cohen, OD

Optometrist · Little Neck, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
86%Service-mix similarityView profile →

Ralph W Lott, O.D.

Optometrist · New Hartford, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
86%Service-mix similarityView profile →

Athina Doulaveris, O.D.

Optometrist · Deer Park, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
85%Service-mix similarityView profile →

Dina Mayzel, OD

Optometrist · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
85%Service-mix similarityView profile →

Ashley Allee

Optometrist · Bronx, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Established patient problem focused exam of visual system (92012)
84%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.