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Similar work.
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Compare the published Medicare service mix of Christopher Lyon, PH.D,MD with clinicians in the same registry specialty: Ophthalmology.

ORANGE, CA · Exact areaEdit location

2024 published service data · 16 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Meei-Ling Tung Wu, M.D.

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Multiple measurements of eye fluid pressure over an extended time period (92100)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Exam of the internal drainage system of eye (92020)
56%Service-mix similarityView profile →

Grace T Wu, MD

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Multiple measurements of eye fluid pressure over an extended time period (92100)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Exam of visual field with extended testing (92083)
52%Service-mix similarityView profile →

Keith Vincent Rundle, M.D.

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Exam of visual field with extended testing (92083)
  • Extended exam of the back part of the eye with retinal drawing (92201)
23%Service-mix similarityView profile →

Michael C Yang, MD

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Exam of visual field with extended testing (92083)
  • Ultrasound scan of cornea to determine thickness (76514)
23%Service-mix similarityView profile →

Prit Oat Sinchai, M.D.

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Exam of visual field with extended testing (92083)
  • Ultrasound scan of cornea to determine thickness (76514)
20%Service-mix similarityView profile →

George Henson Garcia, M.D.

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Exam of visual field with extended testing (92083)
  • Exam of visual field with intermediate testing (92082)
20%Service-mix similarityView profile →

Farnoosh Tinoosh, M.D.

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Exam of visual field with extended testing (92083)
  • Ultrasound scan of cornea to determine thickness (76514)
20%Service-mix similarityView profile →

Swaraj Bose, MD

Ophthalmology · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • Exam to measure eye deviation and range of motion (92060)
19%Service-mix similarityView profile →

David E Yomtoob, MD

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Exam of visual field with extended testing (92083)
  • Ultrasound scan of cornea to determine thickness (76514)
19%Service-mix similarityView profile →

Amir Hossein Alim Marvasti

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Exam of visual field with extended testing (92083)
  • Ultrasound scan of cornea to determine thickness (76514)
18%Service-mix similarityView profile →

Priyanka Chhadva, M.D.

Ophthalmology · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Exam of visual field with extended testing (92083)
  • Ultrasound scan of cornea to determine thickness (76514)
16%Service-mix similarityView profile →

Kate Chenlu Xie

Ophthalmology · Orange, CA

Shared published services
2 shared services · view billing descriptions
  • Exam of visual field with extended testing (92083)
  • Ultrasound scan of cornea to determine thickness (76514)
12%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.