A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Bogard Chang, OD with clinicians in the same registry specialty: Optometrist.

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 56 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John Edward Maanum, O.D.

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
  • Exam of visual field with extended testing (92083)
78%Service-mix similarityView profile →

Tanya Chaljian, OD

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
  • Closure of tear duct opening using plug (68761)
75%Service-mix similarityView profile →

Bayan Naime, O.D.

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
72%Service-mix similarityView profile →

Jilber Fouladian, O.D.

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
71%Service-mix similarityView profile →

Juliana Nghiem, OD

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Closure of tear duct opening using plug (68761)
  • Exam of visual field with extended testing (92083)
70%Service-mix similarityView profile →

Teresa Emily Lim, O.D.

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
  • Photography of the retina (92250)
67%Service-mix similarityView profile →

Andrea Wong, O.D.

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Photography of the retina (92250)
67%Service-mix similarityView profile →

Judy Chia-Ti Liao, O.D.

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
66%Service-mix similarityView profile →

Emily Pauline James, O.D.

Optometrist · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
65%Service-mix similarityView profile →

James K. Kurata, O.D.

Optometrist · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
65%Service-mix similarityView profile →

Cynthia Arata Lo, O.D.

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Exam of visual field with extended testing (92083)
  • Photography of the retina (92250)
64%Service-mix similarityView profile →

Mariacristina Zamora, O.D.

Optometrist · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Closure of tear duct opening using plug (68761)
  • Exam of visual field with extended testing (92083)
63%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.