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Compare the published Medicare service mix of Duane Lewis Zink, O.D. with clinicians in the same registry specialty: Optometrist.

SPOKANE, WA · Exact areaEdit location

2024 published service data · 51 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David G Gaimari, OD

Optometrist · Spokane, WA

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

Richard E Kellogg, OD

Optometrist · Spokane, WA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
81%Service-mix similarityView profile →

Jennifer J. Kerns, O.D.

Optometrist · Spokane, WA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
75%Service-mix similarityView profile →

David William Shurtz, OD

Optometrist · Spokane, WA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
73%Service-mix similarityView profile →

Clayton Krager

Optometrist · Spokane, WA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
70%Service-mix similarityView profile →

Eric S Hussey, O.D.

Optometrist · Spokane, WA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • Photography of the retina (92250)
69%Service-mix similarityView profile →

Thomas Arthur Myers, O.D.

Optometrist · Spokane, WA

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Photography of the retina (92250)
67%Service-mix similarityView profile →

Melissa Barnhart, O.D.

Optometrist · Spokane, WA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
67%Service-mix similarityView profile →

Michael Edward Derzay, OD

Optometrist · Spokane, WA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
66%Service-mix similarityView profile →

Sara Anne Edmons, OD

Optometrist · Spokane, WA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
66%Service-mix similarityView profile →

Heavin Bortz Maier, OD

Optometrist · Spokane, WA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
65%Service-mix similarityView profile →

Kellen Robertson, O.D.

Optometrist · Spokane, WA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
64%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.