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Compare the published Medicare service mix of Ryan M. Ackerman, O.D. with clinicians in the same registry specialty: Optometrist.

ROCK RAPIDS, IA · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 16 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John Daniel Michels, O.D.

Optometrist · Sheldon, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
87%Service-mix similarity~24.1 milesView profile →

Madelyn Driggs, OD

Optometrist · Sheldon, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
84%Service-mix similarity~24.1 milesView profile →

Scott Driesen, O.D.

Optometrist · Sioux Center, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
84%Service-mix similarity~23.9 milesView profile →

Clarence Joseph Vanderlei, O.D.

Optometrist · Rock Valley, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
83%Service-mix similarity~17.0 milesView profile →

Sandra Kay Carman, OD

Optometrist · Luverne, MN

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
81%Service-mix similarity~16.3 milesView profile →

Matthew Lee Radke, O.D.

Optometrist · Sheldon, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
81%Service-mix similarity~24.1 milesView profile →

Jill N Kunzman, O.D.

Optometrist · Sibley, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
75%Service-mix similarity~21.9 milesView profile →

Zachary David Ney, OD

Optometrist · Sibley, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
66%Service-mix similarity~21.9 milesView profile →

Peggy Sue Driesen, O.D.

Optometrist · Sioux Center, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Removal of cataract with insertion of prosthetic lens (66984)
66%Service-mix similarity~23.9 milesView profile →

Paul W. Beaver, O.D.

Optometrist · Sioux Center, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
  • Imaging of retina (92134)
65%Service-mix similarity~23.9 milesView profile →

Rees Beaver, OD

Optometrist · Sioux Center, IA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • New patient complete exam of visual system (92004)
62%Service-mix similarity~23.9 milesView profile →

Jonathan Toso, O.D.

Optometrist · Canton, SD

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • New patient complete exam of visual system (92004)
60%Service-mix similarity~22.6 milesView 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 approximate distance 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.