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Similar work.
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Compare the published Medicare service mix of Dzung X Nguyen, OD with clinicians in the same registry specialty: Optometrist.

OAK LAWN, IL · Exact areaEdit location

2024 published service data · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jennifer L Redmond, OD

Optometrist · Oak Lawn, IL

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)
  • Photography of the retina (92250)
  • Exam of visual field with extended testing (92083)
79%Service-mix similarityView profile →

Iwona B. Lazarz, OD

Optometrist · Oak Lawn, IL

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)
  • Photography of the retina (92250)
  • Exam of visual field with extended testing (92083)
79%Service-mix similarityView profile →

Azalea Garcia, OD

Optometrist · Oak Lawn, IL

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)
  • Photography of the retina (92250)
  • Exam of visual field with extended testing (92083)
77%Service-mix similarityView profile →

Casey L Hogan, OD

Optometrist · Oak Lawn, IL

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)
  • Photography of the retina (92250)
  • Exam of visual field with extended testing (92083)
68%Service-mix similarityView profile →

Mohammad Salem, OD

Optometrist · Oak Lawn, IL

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Imaging of optic nerve (92133)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
61%Service-mix similarityView profile →

Sandra L. Bury, O.D.

Optometrist · Oak Lawn, IL

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Exam of visual field with extended testing (92083)
  • Imaging of optic nerve (92133)
57%Service-mix similarityView profile →

Hiralben Kalpesh Patel, OD

Optometrist · Oak Lawn, IL

Shared published services
3 shared services · view billing descriptions
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
  • Microfluid analysis of tears (83861)
37%Service-mix similarityView profile →

Salvador Gonzalez, OD

Optometrist · Oak Lawn, IL

Shared published services
1 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)
30%Service-mix similarityView profile →

George G Pappas, O.D.

Optometrist · Oak Lawn, IL

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
18%Service-mix similarityView profile →

Bradley R. Cogswell, O.D.

Optometrist · Oak Lawn, IL

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
13%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.