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Compare the published Medicare service mix of Steven Jin Yoon, M.D. with clinicians in the same registry specialty: Ophthalmology.

CA · 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.

Adeleh Yarmohammadi, M.D.

Ophthalmology · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
69%Service-mix similarityView profile →

Emma Coleen Mcdonnell

Ophthalmology · Chula Vista, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
67%Service-mix similarityView profile →

Daniel Ebroon, M.D.

Ophthalmology · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of content of eyes (92285)
65%Service-mix similarityView profile →

Perry Allan Haugen, M.D.

Ophthalmology · Sonora, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
59%Service-mix similarityView profile →

Tania Onclinx, MD

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
59%Service-mix similarityView profile →

Paul Zheseng Lang, MD

Ophthalmology · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
58%Service-mix similarityView profile →

Stephen S. Bylsma, M.D.

Ophthalmology · Santa Maria, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
56%Service-mix similarityView profile →

Douglas S Bishop, M.D.

Ophthalmology · Placerville, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
55%Service-mix similarityView profile →

Priyanka Jain, MD

Ophthalmology · Merced, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
55%Service-mix similarityView profile →

John Burley Cotter, MD

Ophthalmology · Santa Maria, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
54%Service-mix similarityView profile →

Warren J Reingold, MD

Ophthalmology · North Hollywood, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
54%Service-mix similarityView profile →

M Regina De Luna

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • 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)
53%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.