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Compare the published Medicare service mix of Sandhya Iyer, M.D. with clinicians in the same registry specialty: Ophthalmology.

FORT WORTH, TX · Exact areaEdit location

2024 published service data · 30 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kassim A. Khan, M.D.

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
85%Service-mix similarityView profile →

Derek Yang Han

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
80%Service-mix similarityView profile →

Theodore Edward Margo, M.D.

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
80%Service-mix similarityView profile →

Tina Chen, MD

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
80%Service-mix similarityView profile →

Brett H Mueller, DO, PHD

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Measurement of corneal curvature and depth of eye (92136)
80%Service-mix similarityView profile →

Unni Krishnan Nair, M.D.

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
79%Service-mix similarityView profile →

Danlin Jenny Fuller, MD

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
75%Service-mix similarityView profile →

David Truong, M.D.

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
74%Service-mix similarityView profile →

Robert Eric Warren, M.D.

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
73%Service-mix similarityView profile →

Tyler Moore, MD

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
71%Service-mix similarityView profile →

Ann Ranelle, DO

Ophthalmology · Fort Worth, TX

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 low level od decision making, if using time, 20 minutes or more (99213)
  • Photography of the retina (92250)
71%Service-mix similarityView profile →

Joshua Andrew Zaffos, M.D.

Ophthalmology · Fort Worth, TX

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)
  • Removal of cataract with insertion of prosthetic lens (66984)
69%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.