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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).

Patient Reviews

Patient comments (8)

The overall average patient rating of Dr. John Maggiano is Average. Dr. Maggiano has been reviewed by 15 patients who have provided 8 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 3.0
Promptness 2.3
Courteous Staff 3.1
Accurate Diagnosis 3.2
Bedside Manner 2.5
Spends Time with Me 2.8
Follows Up After Visit 2.8

Specialties & Research

Dr. John Maggiano, MD is board certified in Ophthalmology.

  • He has special expertise in 2 areas:
  • Retina Surgery
  • Retinal Disorders

Education & Awards

Dr. Maggiano graduated from Loyola University Chicago, Maywood.


Dr. Maggiano has 13 hospital affiliations:

  • Saddleback Memorial Medical Center-Laguna Hills 
  • Mission Hospital 


  • Korean
  • Italian
  • Spanish
  • German
  • Chinese
  • Hindi
  • Vietnamese

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Additional Information
Dr. John M Maggiano MD is a male Ophthalmologist, has 39 years of experience and practices in Ophthalmology.
Where does Dr. John M. Maggiano practice?
Dr. John Maggiano has 2 office locations.
Dr. John Maggiano practices Ophthalmology near Santa Ana, CA.
Additional practice locations include: Newport Beach, CA.
See Santa Ana Ophthalmologists.