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Compare the published Medicare service mix of David G. Hwang, MD with clinicians in the same registry specialty: Ophthalmology.

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 79 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Neel Dave Pasricha, M.D.

Ophthalmology · 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)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
82%Service-mix similarityView profile →

Simon Sheung Man Fung, MD

Ophthalmology · 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)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Measurement of corneal curvature and depth of eye (92136)
62%Service-mix similarityView profile →

Danny Y Lin, MD

Ophthalmology · 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)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Measurement of corneal curvature and depth of eye (92136)
61%Service-mix similarityView profile →

John H Zeiter, MD

Ophthalmology · 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)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Measurement of corneal curvature and depth of eye (92136)
56%Service-mix similarityView profile →

Jing Shan, MD, PHD

Ophthalmology · 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)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
53%Service-mix similarityView profile →

Ervin Patrick Wong, M.D.

Ophthalmology · 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)
  • Measurement of corneal curvature and depth of eye (92136)
  • Complex removal of cataract with insertion of prosthetic lens (66982)
52%Service-mix similarityView profile →

Madeline Yung

Ophthalmology · 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)
  • Measurement of corneal curvature and depth of eye (92136)
  • Complex removal of cataract with insertion of prosthetic lens (66982)
51%Service-mix similarityView profile →

Jeremy David Keenan, MD

Ophthalmology · 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)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
50%Service-mix similarityView profile →

Negin Agange, MD

Ophthalmology · 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)
  • Ultrasound scan of cornea to determine thickness (76514)
  • Measurement of corneal curvature and depth of eye (92136)
47%Service-mix similarityView profile →

Nickisa M Hodgson, M.D.

Ophthalmology · 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)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
45%Service-mix similarityView profile →

Maya Si-Huey Ling, MD

Ophthalmology · 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)
  • Measurement of corneal curvature and depth of eye (92136)
  • Complex removal of cataract with insertion of prosthetic lens (66982)
44%Service-mix similarityView profile →

O'rese Joshua Knight, M.D.

Ophthalmology · 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)
  • Ultrasound scan of cornea to determine thickness (76514)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
44%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.