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Compare the published Medicare service mix of Leslie L Chen, O.D. with clinicians in the same registry specialty: Specialty details in registry.

CA · Exact areaEdit location

2024 published service data · 43 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ellin Ying-Chun Wu, O.D.

Optometry (CMS) · Sunnyvale, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • 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)
67%Service-mix similarityView profile →

Jasmeen Kaur Bhangu, OD

Optometry (CMS) · Hanford, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • 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)
58%Service-mix similarityView profile →

Bruce J. Lucas, O.D.

Optometry (CMS) · Woodland Hills, CA

Shared published services
2 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
56%Service-mix similarityView profile →

Gordon G Wong, OD

Optometry (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • 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 →

Seiju E Terada, O.D.

Optometry (CMS) · Fountain Valley, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • 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)
51%Service-mix similarityView profile →

Angela Joy Cheung, O.D.

Optometry (CMS) · Oakland, CA

Shared published services
2 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
50%Service-mix similarityView profile →

Luke Werkhoven, O.D.

Optometry (CMS) · Santa Barbara, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • 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)
47%Service-mix similarityView profile →

Gloria Bitt-Wai Chiu

Optometry (CMS) · Los Angeles, CA

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)
46%Service-mix similarityView profile →

Roushanak Fadavi, O.D.

Optometry (CMS) · Mission Viejo, CA

Shared published services
2 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • Imaging of retina (92134)
41%Service-mix similarityView profile →

Jonathan S Gording, O.D.

Optometry (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • Imaging of retina (92134)
39%Service-mix similarityView profile →

Yura Kim, O.D.

Optometry (CMS) · Mountain View, CA

Shared published services
1 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)
38%Service-mix similarityView profile →

Christina Marie Womack, O.D.

Optometry (CMS) · Simi Valley, CA

Shared published services
2 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • Imaging of retina (92134)
38%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.