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. John Brewer:

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  1. Qualifications
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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. John Brewer, Comprehensive Ophthalmology is Excellent. Dr. Brewer has been reviewed by 2 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Education & Awards

Dr. Brewer graduated from Touro University, Vallejo.


Dr. Brewer has 1 hospital affiliations:

  • U.S. Air Force Medical Center - Keesler 

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Additional Information
Dr. John Ryan Brewer DO is a male Ophthalmologist and practices in Ophthalmology.
Where does Dr. John R. Brewer practice?
Dr. John Brewer has 2 office locations.
Dr. John Brewer practices Ophthalmology near San Antonio, TX.
Additional practice locations include: Biloxi, MS.
See San Antonio Ophthalmologists.