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John Mauro, DO

John Mauro, DO

John Mauro, DO

  • Cataract
  • Comprehensive Ophthalmology
  • Laser Vision Correction
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260 Middle Country Road Smithtown, NY 11787
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  • Cataract Surgery
  • Laser Vision Correction


  • St. Johns University, Bachelor of Science in Pharmacy
  • Philadelphia College of Osteopathic Medicine


  • Nassau University Medical Center
  • Stony Brook University
  • Veterans Medical Center, Ophthalmology


Mercy Medical Center

Professional Memberships

  • Fellow, American Academy of Ophthalmology
  • American Society of Cataract and Refractive Surgery
  • New York State Ophthalmologic Society,
  • New York State Medical Society
  • Suffolk County Ophthalmologic Society

Honors, Awards, etc.

  • Castle Connolly Top Doctor
  • Patients’ Choice Award
  • Compassionate Doctor Award
  • America’s Top Ophthalmologists, Consumers’ Research Council of America


  • Massachusetts Eye and Ear Infirmary
  • Harvard Medical School
  • Massachusetts Eye Research Surgery Institute

Teaching or Professional Positions

  • Attending Ophthalmologist, New York Eye and Ear Infirmary/Mount Sinai
  • Attending Ophthalmologist, Northport Veterans Administration Medical Center
  • Chief of Ophthalmology, St. Catherine of Siena Hospital


John Mauro, DO is a board certified ophthalmologist specializing in cataract and laser vision correction surgery. He is driven to provide exceptional eyesight to his patients and make them feel as comfortable as possible throughout their eyecare journey. Previously a pharmacist, Dr. Mauro has been active in ophthalmic research, co-authoring numerous book chapters, article publications and presentations; including the involvement in multiple prospective and experimental research trials. Although Dr. Mauro specializes in the latest techniques of Laser Cataract Surgery and LASIK surgery, he also sees and treats patients with common eye conditions providing comprehensive exams. Dr. Mauro is fluent in Italian and Spanish. Outside his life as an ophthalmologist/surgeon, Dr. Mauro enjoys spending time with his family and friends, devotes time to health and fitness and is an avid winemaker.