Department Ophthalmology
Primary Location Elyria Family Health Center
Type of Doctor Both Adults and Children & Adolescents
Languages English
Surgeon No
Locations Specialties & Treatments

Treatment & Services

  • Cataract Evaluations
  • Diabetic Eye Examinations
  • Eye Examinations
  • Glaucoma Evaluations
  • Macular Degeneration Evaluations
  • Ophthalmology
  • Optometry
  • Post Surgical Exams
View all 8 Treatment & Services +

Specialty in Diseases & Conditions

  • Age-Related Macular Degeneration
  • Cataracts
  • Diabetes
  • Emergency Care
  • Eye Infections
  • Eye Inflammations
  • Hypertension - High Blood Pressure
  • Ocular Allergies
  • Ocular Injuries
  • Retinal Detachment
View all 10 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Medical Education - The Ohio State University College of Optometry
Columbus, OH USA

Undergraduate - Bowling Green State University
Bowling Green, OH USA

Specialty Interests

General optometry

Research & Publications

Research & Publications

See publications for Gregory Kosunick, OD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 10/8/2019, Dr. Kosunick has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

293 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.9
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

40 Patient Comments

Reviewed on Feb 28, 2020

the Dr. was outstanding in every way- great experience with a difficult problem!

Reviewed on Feb 28, 2020

nurse and Dr. worked beautifully and respectfully together.

Reviewed on Feb 26, 2020

He is an awesome eye physician. I have referred him to several people. He is the best!!

Reviewed on Feb 3, 2020

This office and Dr. are very efficient and have my medical history exact.

Reviewed on Jan 20, 2020

Dr Kosunick is wonderful.

Reviewed on Jan 14, 2020

Dr Kosunick has a great bedside manner and puts you at ease as a patient, yet very professional. The staff are very nice to patient's that are coming in for usually an unpleasant experience. I'll be back next year!

Reviewed on Jan 14, 2020

I have referred several of my family/friends to Dr. Kosunik

Reviewed on Dec 27, 2019

I have recommended this Clinic and provider

Reviewed on Dec 11, 2019

love Dr K! he's been very helpful with my eye problem

Reviewed on Dec 11, 2019

Dr K is very caring

Reviewed on Dec 10, 2019

Dr. Kosunick is always professional and pleasant. He's well informed and ensures that his patients are as well.

Reviewed on Dec 5, 2019

Dr is attentive...good eye contact and ..explains everything

Reviewed on Dec 5, 2019

The nurses and Dr. were very kind and professional.

Reviewed on Dec 5, 2019

I would highly recommend this Dr and clinic to anyone.

Reviewed on Nov 26, 2019

always a good experience with dr. kosunick.

Reviewed on Nov 26, 2019

Dr. Kosunick is a great doctor.

Reviewed on Nov 20, 2019

Care provider explain every detail of my care in terms in which l could understand,and was concerned if l understood his explanation.

Reviewed on Oct 31, 2019

Excellent staff & *Dr. Kosunick was very helpful & gave me a very excellent exam.

Reviewed on Oct 21, 2019

Dr. was one of nicest, caring, knowledgeable, doctors that I have ever seen in my almost "70" years of life !! And no, we are not related or friends !!

Reviewed on Oct 15, 2019

Dr. K and his staff are excellent. Dr. K is very thorough and I have complete trust in his skills.

Reviewed on Oct 10, 2019

Dr. Kosunek was very attentive and listened to everything I wanted to tell him.

Reviewed on Oct 2, 2019

doctor was good to me reely helped me.

Reviewed on Sep 30, 2019

Dr was great. He answered all of my questions.

Reviewed on Sep 13, 2019

Dr. Kocunik is awesome. cares about you as person and patient

Reviewed on Sep 12, 2019

thank you dr. k!!

Reviewed on Aug 16, 2019

We (3 of us family members) travel over 35 mins one way to go to see Dr. Kosunick. Dr. Kosunick and Diane are the best. The care, concern, professionalism and explanation of treatment, is always outstanding. They really make you feel like they really do care.

Reviewed on Aug 14, 2019

He is an excellent provider and I have recommended him to two other people and both parties said what a great informative provider he is.

Reviewed on Jul 31, 2019

He was very helpful and and explained what was happening with my eye. He referred me to Dr. Catherine Whang who specializes in the problem I was having with my eye.

Reviewed on Jul 2, 2019

very good exp He is a GREAT DOCTOR

Reviewed on Jul 2, 2019


Reviewed on Jul 1, 2019

doctor took his time in explaining what he was going to do, what he found, and how he was going to treat my eye.

Reviewed on May 24, 2019

I was able to make an appointment with the doctor I wanted.

Reviewed on May 8, 2019

Seemed to be a very busy day but Dr. apologized for the wait. Waiting area very comfortable & get to visit with other patients. Time passes quickly.

Reviewed on Apr 30, 2019


Reviewed on Apr 8, 2019

*Dr. Kosunick is awesome shows interest in my son - asks about sports, engaging, great doctor.

Reviewed on Apr 1, 2019

I went to Dr. Kosunick for a second opinion. His expertise and style reduced my anxiety and increased my knowledge. I will be transferring my optometry needs to Dr. Kosunick.

Reviewed on Mar 27, 2019

Very supportive, doctor and tech as well as supportive staff.

Reviewed on Mar 21, 2019

Dr. Greg was extremely professional and knowledgable. Made a trip to the eye doctor super easy and enjoyable.

Reviewed on Mar 5, 2019

Dr. Kosunick is great. Very caring and personable. Answers all questions clearly and and without judgement. Entire family are his patients and feel fortunate to have him as our doctor.

Reviewed on Feb 1, 2019

Dr. Kosunick and Staff went above and beyond at this visit! Very pleased!

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