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Similar work.
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Compare the published Medicare service mix of Samuel David Hobbs, M.D. with clinicians in the same registry specialty: Ophthalmology (CMS).

TX · Exact areaEdit location

2024 published service data · 94 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Keith Denton Fisher, M.D.

Ophthalmology (CMS) · Fort Worth, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
98%Service-mix similarityView profile →

Joseph Christiansen, M.D.

Ophthalmology (CMS) · Bellaire, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
92%Service-mix similarityView profile →

Dianne Barrett

Ophthalmology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
91%Service-mix similarityView profile →

Paul Stewart, MD

Ophthalmology (CMS) · Bellaire, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
88%Service-mix similarityView profile →

Richard Fish, M.D.

Specialty details in registry · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
87%Service-mix similarityView profile →

Rafael Luis Ufret-Vincenty, MD

Ophthalmology (CMS) · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
86%Service-mix similarityView profile →

Angela J. Kim, MD

Ophthalmology (CMS) · Bellaire, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
86%Service-mix similarityView profile →

Ekta Rishi, MBBS, MS, FRCS

Ophthalmology (CMS) · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
85%Service-mix similarityView profile →

Noy Ashkenazy, MD

Ophthalmology (CMS) · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
84%Service-mix similarityView profile →

Hosam Attia, M.D.

Ophthalmology (CMS) · Mission, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
84%Service-mix similarityView profile →

Yu-Guang He, MD MS

Ophthalmology (CMS) · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
83%Service-mix similarityView profile →

Larry Puthenparambil, MD

Ophthalmology (CMS) · Pearland, TX

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Photography of the retina (92250)
  • Injection of drug into eye (67028)
80%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.