Dr. Gregory L. Cowan is a highly skilled and experienced fellowship-trained ophthalmologist who has been practicing for over 17 years. Dr. Cowan is certified by the American Board of Ophthalmology and completed both parts of his examination with honors. He also previously served as an Associate Examiner for the Board. While attending medical school at George Washington University Medical School, Dr. Cowan was elected to the Alpha Omega Alpha Medical Honor Society during his junior year, and was also a recipient of the A. Horowitz Award for receiving the highest score on Part I of the National Board of Medical Examination. After receiving his medical degree, Dr. Cowan completed his internship in Internal Medicine at Winthrop University Hospital and his residency training in Ophthalmology at Mount Sinai Medical Center. To further his training, Dr. Cowan also completed a fellowship in Glaucoma at Mount Sinai. With specialized training in glaucoma, Dr. Cowan has performed thousands of laser procedures for the treatment of glaucoma and offers the SLT “cold laser” technology to glaucoma patients. He also offers a wide array of comprehensive diagnostic testing. In addition to his training and practice experience, Dr. Cowan is also a member of: - American Academy of Ophthalmology - Medical Society of the State of New York Dr. Cowan also holds hospital affiliations at Saint Joseph’s Hospital and North Shore University Hospital.
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Reviews

Maryellen M.

07/06/2022

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I was having issues with my left eye and being a diabetic I was scared

Dr Cowan listened to to what I was experiencing and the anxiety I felt. He looked at my eyes and sent me to have different tests right in his office and reassured me that I would be ok. He had a plan for me and I am following his instruction to assure my eyes stay healthy. I recommend him to everyone.

Anonymous

07/12/2022

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Professional, personable, knowledgeable

Very pleasant and reassuring. Leaving the office with confidence and understanding with my vusit

R. M.

07/21/2022

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Dr Cowan is outstanding

He listens, examines and makes a careful assessment and treatment pkan

Rosario G.

03/26/2022

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Good as always, but..

Dr Cowan is a smart, capable, and normally very engaged doctor,but I think he was under the weather during.the visit. We fully trust him as our doctor.

Amiel S.

09/04/2021

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Hteat

Great

Noel G.

09/30/2021

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Feels like in good hands with Dr Cowan

Dr Cowan inspires confidence and trust throughout the whole treatment experience, and delivers top-notch skilled care with above expected outcomes. His team from clinical to admin staff are very professional and add a personal touch to my visits. Thanks Dr Cowan and team!

Dovid B. Y.

09/27/2021

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Got everything right.

He pointed out that I need to stop for 5 days my blood thinner. Excellent advise.

Sherri W.

11/22/2021

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Dr. Cowan is a wonderful doctor, but since Sight MD took over and instituted a new system the wait t

I have been using Dr. Cowan for many years. He is thorough, explains everything very well and always answers questions patiently. His staff is also excellent. However, under this new system instituted by Sight MD, what used to be an extremely efficiently run office is now horrible! Each visit is 1 1/2 to 2 hours with many patients complaining about this new wait. A simple eye exam for a new prescription took over an hour! (It was early in the morning with no emergencies and it wasn’t even crowded) Please fix this ridiculous system because I do not want to find another doctor but I will not continue to sit there for two hours watching the poor staff run in circles with each patient. More unnecessary time is wasted as they escort each patient from one room to the waiting room to another exam room then back to the waiting room to the next room….. (and this isn’t only in the case of special testing, ie FOV) Plus, please consider elderly patients who have trouble walking!

Harry R.

10/28/2021

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Dr. Cowan was very attentive to me questions and concerns and explained everything very well

Experience has always been very goid

Lisa V.

10/28/2021

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Dr. Cowan is an excellent doctor

I first went to Dr. Cowan around 16 years ago with a condition that required an ophthalmologist. He helped with that issue and many others (besides annual checkups). I trust him implicitly and always appreciate his professionalism and congenial personality.

M. M.

10/10/2021

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Excellent knows how to answer my questions

Satisfied he understands my concerns

Anonymous

10/18/2021

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He’s been my doctor for over 20 years

Always good

Robert V.

10/19/2021

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Excellent

Knowledgeable and informative

Anita T.

10/19/2021

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Thorough and concise in his diagnosis

Dr Cowan has impressed me with his ability to access the health issue and get to a plan.

Allison H.

10/20/2021

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Diagnosis confirmed-referred to surgeon

17 yr patient

Phyllis R.

11/10/2021

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EXCELLENT

EXCELLENT

Howard K.

06/15/2022

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Great Dr.

Professional staff

Hillary S.

05/25/2022

Provided by Doctor.com
As always professional and thorough at

I have been coming back to Dr. Cowan for many years and always felt like I was in good hands. I can't say anything negative about any of my experiences with him

John C.

06/09/2022

Provided by Doctor.com
I had a good visit with Dr Cowan

It a fan of your app, wait time in the lobby went beyond appointment time. The testing process went well, and time with the doctor was good.

Maria S.

06/09/2022

Provided by Doctor.com
Always a good expert! Thank you!

See you in September!

More Business Info

Hours
Regular Hours
Mon - Fri:
Extra Phones

Fax: 516-796-5134

Payment method
master card, visa, amex, cash, discover, check, debit
Location
Bethpage Medical Bldg
Neighborhood
Plainedge
AKA

Cowan, Gregory L, MD

Categories
Physicians & Surgeons, Ophthalmology, Physicians & Surgeons
Other Information

Specialties: Ophthalmology

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