A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

SAINT LOUIS, MO · Exact areaEdit location

2024 published service data · 52 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Waseem Ansari, M.D.

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient complete exam of visual system (92014)
78%Service-mix similarityView profile →

Rohan Jalalizadeh, M.D.

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
64%Service-mix similarityView profile →

Jonathan Craven Schell, M.D.

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
55%Service-mix similarityView profile →

James Travis Walsh, MD

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Exam of retinal blood vessels using a special camera after injection of a dye (92235)
55%Service-mix similarityView profile →

Zachary D Seagrave, MD

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient complete exam of visual system (92014)
52%Service-mix similarityView profile →

Rajendra Shridhar Apte, MD

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
52%Service-mix similarityView profile →

Bruce Hagedorn Cohen, M.D.

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
52%Service-mix similarityView profile →

Jason Nicholas Papas, MD

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
51%Service-mix similarityView profile →

Robert Joseph Olk, MD

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
51%Service-mix similarityView profile →

Alexander Steven Barsam, MD

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
50%Service-mix similarityView profile →

Gregory A Hill, M.D.

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
48%Service-mix similarityView profile →

John Galanis

Ophthalmology · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Established patient problem focused exam of visual system (92012)
47%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.