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Compare the published Medicare service mix of Tiffany Ying-Hsuan Chen, OD, MS with clinicians in the same registry specialty: Optometrist.

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 61 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Sarah Lopez, O.D.

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
85%Service-mix similarityView profile →

Jennifer Currier

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
81%Service-mix similarityView profile →

Shreya Malli, O.D.

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
78%Service-mix similarityView profile →

Adrienne Coulter, OD

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
75%Service-mix similarityView profile →

Wendy Zhen, OD

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
73%Service-mix similarityView profile →

Neda Akhondan, OPTOMETRIST

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
67%Service-mix similarityView profile →

Kristina Lin, MD

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
66%Service-mix similarityView profile →

Sharon Shaw, O.D.

Optometrist · San Francisco, 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)
  • Imaging of retina (92134)
63%Service-mix similarityView profile →

Ronald Neal Hiura, O.D.

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
60%Service-mix similarityView profile →

Erika Mae Reyes, O.D.

Optometrist · San Francisco, 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)
  • Imaging of retina (92134)
60%Service-mix similarityView profile →

Tina Zeng, O.D

Optometrist · San Francisco, CA

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)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
59%Service-mix similarityView profile →

Rita Nieu, OD, MS

Optometrist · San Francisco, 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)
  • Imaging of retina (92134)
59%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.