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 9/16/2020, 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

309 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

39 Patient Comments

Reviewed on Aug 18, 2020

Dr. said I should call in a few days to let him know if conditions improved. He did not respond to my initial call when I said there was no improvement, nor to a later MyChart message I sent saying it was better.

Reviewed on Aug 18, 2020

I called the Wellington office and a person there helped me get into a provider the same day.

Reviewed on Aug 11, 2020

overall excellent and respectful care/ kindness. would make one suggestion to have better process of seating area with used and unused seating. perhaps placing laminated cards to do not sit in seats that were just used. noticed that in my time waiting in the area inside the office part, after initial first exam when waiting to see eye doctor. The seats were unmarked and new people came and sat without proper sanitation of seats. thanks!

Reviewed on Aug 5, 2020

the office was very thorough in following proper protocol. This was the best experience I've had with eye doctor in years. He listened and offered suggestions for my dry eye issue and didn't act like it was it was a non issue. so glad I found him

Reviewed on Aug 3, 2020

Dr K is always kind and respectful. He listens to my concerns and answers all of my questions completely and in an understandable way. Very pleased with the care I get from him.

Reviewed on Jul 30, 2020

Dr. Kosunick is also excellent. I couldn't be more pleased with the care he has given me -- and my eyes -- for many years now. I look forward to our yearly visits.

Reviewed on Jul 28, 2020

Dr. Kosunick was very thorough with my eye exam. He discovered a small amount of bleeding behind my eye and prescribed testing for diabetics. I am now being treated for prediabetics do to his exam. Thank you Dr. Kosunick.

Reviewed on Jul 14, 2020


Reviewed on Jul 1, 2020

got in quickly. The doctor was efficient

Reviewed on May 21, 2020

dr Kosunick is very patient and will will spend as much time as needed to answer your questions

Reviewed on Apr 3, 2020

Dr. Gregory Kosunick was outstanding. I needed emergency eye care due to a particle caught in my eye. He serviced me immediately and removed the particle with tweezers. My eye had completely healed by the next day. I sincerely appreciate everything he did for me. I will now make him my new eye doctor.

Reviewed on Apr 2, 2020

great doctor. very friendly and personable.

Reviewed on Mar 13, 2020

Dr. Kocunik is awesome. Very personable and caring

Reviewed on Mar 5, 2020

Dr. Greg is exceptional. He takes his time; knows your past history; is exceptionally personal; explaines conditions in lay terms; and is very confident which is reassuring. He is easy to refer to!

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!!

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