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Similar work.
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Compare the published Medicare service mix of Karen Hashmi Khan, O.D. with clinicians in the same registry specialty: Optometrist.

AMARILLO, TX · Exact areaEdit location

2024 published service data · 39 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Andrew John Alpar, O.D.

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
92%Service-mix similarityView profile →

Neal D Nossaman, O.D.

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
89%Service-mix similarityView profile →

Christine English Oconnor, OD

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
89%Service-mix similarityView profile →

Wesley James Anderson, O.D.

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
88%Service-mix similarityView profile →

Stuart Raymond Berry, O.D.

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
87%Service-mix similarityView profile →

Joe D Williams, O.D.

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
85%Service-mix similarityView profile →

William Robert Chafin, O.D

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
85%Service-mix similarityView profile →

Mackenzie Weir, O.D.

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
84%Service-mix similarityView profile →

Daniel Brinkman, OD

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
83%Service-mix similarityView profile →

Heidi Sticksel Hawkins, OPTOMETRIST

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
82%Service-mix similarityView profile →

Jaya M Pathapati, OD

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
80%Service-mix similarityView profile →

Candace E Lipshy, OD

Optometrist · Amarillo, TX

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
80%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.