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Compare the published Medicare service mix of Christopher James Johnson, OD with clinicians in the same registry specialty: Optometrist.

PHOENIX, AZ · Exact areaEdit location

2024 published service data · 101 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jason Becker, O.D.

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Closure of tear duct opening using plug (68761)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
64%Service-mix similarityView profile →

David T. Rockwell, O.D.

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Closure of tear duct opening using plug (68761)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
64%Service-mix similarityView profile →

Kelsie Stevens, OD

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Closure of tear duct opening using plug (68761)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
60%Service-mix similarityView profile →

Martin I Brussels, OD

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
60%Service-mix similarityView profile →

Michael W Lamb, OD

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Closure of tear duct opening using plug (68761)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
60%Service-mix similarityView profile →

Kacey Jane Gilford, OD

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
57%Service-mix similarityView profile →

Sarah Burch Marietta, O.D.

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Closure of tear duct opening using plug (68761)
  • Imaging of retina (92134)
57%Service-mix similarityView profile →

Robert Andrew Cook, O.D

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Closure of tear duct opening using plug (68761)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
56%Service-mix similarityView profile →

Michelle A. Kohls, O.D.

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Closure of tear duct opening using plug (68761)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
56%Service-mix similarityView profile →

Brad Victor Nuttall, OD

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Closure of tear duct opening using plug (68761)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
54%Service-mix similarityView profile →

Jillian Ralston, OD

Optometrist · Phoenix, AZ

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
54%Service-mix similarityView profile →

Roger Alejandro Juarez, O.D.

Optometrist · Phoenix, AZ

Shared published services
3 shared services · view billing descriptions
  • Closure of tear duct opening using plug (68761)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
53%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.