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John F. Warren, MD

John F. Warren, MD

Specialties

A. W.

Very pleasant experience! A nice clean environment The staff were very helpful and friendly.

F. F.

Just had lasik done this past week by Dr Warren. My only regret is not doing it sooner. I was scared about the procedure and being awake but finally after getting it done the procedure was quick and p...

P. B.

I had an excellent visit. Dr. Warren was very good and the staff was very nice and helpful.

N. S.

At the initial consultation, I felt Dr Warren took my concerns and aspirations seriously. He alerted me to the cost, possible challenges, how he would address them. During surgery prep, his concern fo...

E. C.

I had cataract surgery on both eyes in 2025 performed by Dr. Warren. I had a very good outcome. I am now able to drive at night without starbursts and glare. Dr Warren explained my options and ever...

J. P.

Dr. Warren and all of the staff of Longwood Eye and Lasix are greatly appreciated for their kindness, professionalism and ability to give me 20/20 vision for the first time in my life! The process was...

J. L.

One of the things I especially like about Dr Warren is the way he invites you into the conversation about your medical care. Some physicians tend to “check the boxes” leaving the patient uninform...

C. S.

I absolutely would recommend Dr. Warren to family and friends. He addressed my concerns and I felt very comfortable. Dr. Warren spoke with me prior to my cataract surgery and after. My surgery was tru...

L. S.

Dr. Warren has performed thousands of cataract surgeries, gave me full confident in his expertise. I am completely satisfied with my surgery; it transformed my life. It was important not only for me b...

A. R.

A great medical treatment experience. All of the administrative and professional staff members were knowledgeable, polite, and efficient. Each stage of the treatment process was fully explained and...
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Locations

The patient always comes first

“My relationship with the patient starts with a meticulous, comprehensive exam. I invest time listening to and understanding your concerns and answering your questions in plain English. I will go out of my way to ensure your satisfaction and comfort. I feel privileged to help people improve their vision and their quality of life through my profession.”

Board-Certified

  • American Board of Ophthalmology

Fellowship

  • Cornea, External Disease and laser refractive surgery, FI Proctor Foundation, University of California, San Francisco, CA

MD

  • Stanford University, Stanford, CA

Residency

  • University of California, San Francisco

Former Clinical Assistant Professor

  • Ophthalmology, University of California, San Francisco

Member

  • American Academy of Ophthalmology
  • American Society of Cataract and Refractive Surgery
  • Frederick C. Cordes Eye Society
  • H. Bruce Ostler Association of Proctor Fellows
  • Claes Dohlman Society
  • Massachusetts Society of Eye Physicians and Surgeons

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