A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Diana Katsman, MD with clinicians in the same registry specialty: Ophthalmology.

TORRANCE, CA · Exact areaEdit location

2024 published service data · 23 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Josh O Wallsh, M.D.

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
76%Service-mix similarityView profile →

Steven G Khwarg, MD

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Extended exam of the back part of the eye with retinal drawing (92201)
68%Service-mix similarityView profile →

Michael C Heeg, M.D.

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Extended exam of the back part of the eye with retinal drawing (92201)
67%Service-mix similarityView profile →

Lindsay Ann Grotting, M.D.

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Compounded drug, not otherwise classified (J7999)
65%Service-mix similarityView profile →

Ron P Gallemore, MD

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Extended exam of the back part of the eye with retinal drawing (92201)
63%Service-mix similarityView profile →

Mehran Taban, M.D.

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
61%Service-mix similarityView profile →

Jordan Alexander Sugarman, MD

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Extended exam of the back part of the eye with retinal drawing (92201)
60%Service-mix similarityView profile →

Babak Shabatian, M.D.

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
58%Service-mix similarityView profile →

John Francis Maher, M.D.

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Extended exam of the back part of the eye with retinal drawing (92201)
58%Service-mix similarityView profile →

Damien Forrest Goldberg, M.D.

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Extended exam of the back part of the eye with retinal drawing (92201)
  • Established patient problem focused exam of visual system (92012)
52%Service-mix similarityView profile →

Barry James Wolstan, M.D.

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Extended exam of the back part of the eye with retinal drawing (92201)
  • Established patient problem focused exam of visual system (92012)
51%Service-mix similarityView profile →

Arbi Khemichian, MD

Ophthalmology · Torrance, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • 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.