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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Duncan Friedman:

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Specialties & Research

  • He has special expertise in 10 areas:
  • Cataract Surgery
  • Choroid Diseases
  • Diabetic Eye Disease (Diabetic Retinopathy)
  • Macular Degeneration
  • Macular Edema
  • Retina Surgery
  • Retinal Artery Occlusion
  • Retinal Detachment
  • Retinal Vein Occlusion
  • Vitreous Detachment (Retina Detachment)

Education & Awards

Dr. Friedman graduated from Louisiana State University at New Orleans.


  • Spanish

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Additional Information
Dr. Duncan Aesctun Friedman MD is a male Ophthalmologist and practices in Ophthalmology.
Where does Dr. Duncan A. Friedman practice?
Dr. Duncan Friedman has 1 office location.
Dr. Duncan Friedman practices Ophthalmology near San Antonio, TX.
See San Antonio Ophthalmologists.