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Compare the published Medicare service mix of John Thomas Gingrich, O.D. with clinicians in the same registry specialty: Optometrist.

TN · 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.

Annedrea Leigh Morreale, O.D.

Optometrist · Antioch, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
100%Service-mix similarityView profile →

Christine Smith, OD

Optometrist · Murfreesboro, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
88%Service-mix similarityView profile →

Jackie Ngo, OD

Optometrist · Johnson City, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
84%Service-mix similarityView profile →

Chase Terrell Parker, O.D.

Optometrist · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
83%Service-mix similarityView profile →

Jami Ann White, O.D.

Optometrist · Murfreesboro, TN

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

Mark Alvin Jaynes, OD

Optometrist · White Pine, TN

Shared published services
2 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
78%Service-mix similarityView profile →

Benjamin Lawrence, O.D.

Optometrist · Johnson City, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
73%Service-mix similarityView profile →

Daniel Stacy

Optometrist · Chattanooga, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
72%Service-mix similarityView profile →

Jacob Norris, O.D.

Optometrist · Newport, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
71%Service-mix similarityView profile →

Austin Swain, O.D.

Optometrist · Ripley, TN

Shared published services
2 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
70%Service-mix similarityView profile →

Alecia W Rogers, O.D.

Optometrist · Knoxville, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
70%Service-mix similarityView profile →

Nathan Emmert, O.D.

Optometrist · Elizabethton, TN

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
69%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.