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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).

JBSA LACKLAND, TX · 10 milesEdit location
Within 10 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 16 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

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 similarity~1.5 milesView 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 similarity~7.2 milesView profile →

Timothy Paul Cleland, M.D.

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)
79%Service-mix similarity~9.2 milesView profile →

Richard Gary Lane, M.D.

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)
78%Service-mix similarity~9.2 milesView profile →

Sarah Elizabeth Holy, MD

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)
77%Service-mix similarity~9.2 milesView profile →

Moises Alexander Chica, MD

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)
77%Service-mix similarity~9.2 milesView profile →

Sepehr Bahadorani, MD

Ophthalmology (CMS) · San Antonio, TX

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)
76%Service-mix similarity~2.0 milesView profile →

Enchun Mike Liu, MD

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)
75%Service-mix similarity~9.2 milesView profile →

Lina M Marouf, M.D.

Specialty details in registry · 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)
72%Service-mix similarity~9.2 milesView profile →

Huy Duy Nguyen, MD

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)
65%Service-mix similarity~9.2 milesView profile →

Duncan Aesctun Friedman, M.D.

Ophthalmology (CMS) · San Antonio, TX

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)
60%Service-mix similarity~7.6 milesView profile →

Thomas O Oei, MD

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)
55%Service-mix similarity~7.6 milesView 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 approximate distance 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.