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Compare the published Medicare service mix of Anthony Dai Nguyen, OD with clinicians in the same registry specialty: Optometrist.

DALLAS, TX · Exact areaEdit location

2024 published service data · 92 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Yuming Li, OD

Optometrist · Dallas, TX

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)
  • New patient complete exam of visual system (92004)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
91%Service-mix similarityView profile →

Boi-Dieu Hoang Nguyen, OD

Optometrist · Dallas, TX

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)
  • New patient complete exam of visual system (92004)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
89%Service-mix similarityView profile →

Haley Elizabeth Puryear, O.D.

Optometrist · Dallas, TX

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)
  • New patient complete exam of visual system (92004)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
88%Service-mix similarityView profile →

Michael Wayne Smith, OD

Optometrist · Dallas, TX

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)
  • New patient complete exam of visual system (92004)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
85%Service-mix similarityView profile →

Patrick Daniel Colerick, O.D.

Optometrist · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
83%Service-mix similarityView profile →

Ian James Gutierrez

Optometrist · Dallas, TX

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
79%Service-mix similarityView profile →

Brian Dean Marshall, O.D.

Optometrist · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Exam of visual field with extended testing (92083)
77%Service-mix similarityView profile →

George E Goodman, OD

Optometrist · Dallas, TX

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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
73%Service-mix similarityView profile →

Sadaf Razi Elhaffar, OD

Optometrist · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Exam of visual field with extended testing (92083)
72%Service-mix similarityView profile →

Wayne Edward Culbertson, O.D.

Optometrist · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Exam of visual field with extended testing (92083)
  • Established patient complete exam of visual system (92014)
72%Service-mix similarityView profile →

Samantha Devlin

Optometrist · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Exam of visual field with extended testing (92083)
72%Service-mix similarityView profile →

Sherine John, OD

Optometrist · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • New patient complete exam of visual system (92004)
  • Exam of visual field with extended testing (92083)
  • Established patient complete exam of visual system (92014)
72%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.