Mary Kellis, MD

Dr Mary is the best she saved my life. I''m very grateful for her expertise.

Dr Kellis is a devoted professional. She is caring and thorough in caring for you snd answering questions. Very personable.

Dr Kellis is excellent! She is a precious asset!

Dr. Kellis is ALWAYS on the top of her game. She is prepared, caring and very thoughtful.

Dr Kellis is wonderful this is why I chose her as well as her office staff I cant say enough Thank You

I chose this doctor for a less significant concern but she is following incidental findings I am glad we found eachother and following for incidental findings again Thank You

Dr. KELLIS is very professional. She is thoural and kind. She explains things at my level and is a good listener. Thoural physical exam decribing each step and explains results . I would recommend her.

The doctor helped me to understand about my medical problem and is polite, thorough and kind. I can't ask for better. :)

Dr. Kellis is the absolute best!!!!

Dr Kellis is great. She asks about you as a person as well as a patient.

I had a great visit and had excellent care by the doctor and her staff.

Terrific physician. Thorough and exceptional experience.

I love Dr Kellis, I recommend her to all my friends. She is a great doctor and has a big heart. She cares.

Exceptional doctor.

Dr Kellis is a very caring physician . Love her as my endo

This doctor is booked so far out that I Literally had my follow up visit two years after I saw her for the first time

Dr. Kellis has always been very astute during my appointments, sometimes helping me to realize symptoms that I attempted to ignore. She is always very thorough. I have recommended her to several other people.

She is great

Dr. Kellis has been great to work with seems like there are other recommendations she could make being in the holistic wellness group to address some issues outside of the medication she recommended to treat my symptoms.

Dr Kellis is a very good doctor and I am thankful that she was who my Cleveland Clinic team recommended

I have been extremely pleased with the care given by Dr. Mary Kellis and her staff.

Dr. Kellis is my life saver. She saw my numbers and knew something was off. After everything was over, including surgery, I haven't felt this good in years. Thank you Dr. Kelli's for saving my life!

Dr. Kellis is amazing! She is compassionate, attentive and didn't rush through my appointment. She is very knowledgeable and is determined to find the answers that I need.

Dr. Kellis was professional and attentive to my concerns.

Mary is a great doctor.

Had a great zoom appt with Dr Kellis!

I am grateful to be a patient of Dr. Kellis

Dr. Kellis is such a kind and caring person. She is an asset to the Cleveland Clinic.

My doctor was very thorough and considerate. She suggested tests to rule things out. I left there feeling a better sense of comfort and knowing that I was being taken care of. I'm so glad I came in to see my doctor.

Dr Kellis was very concerned about my understanding of the problem and truly seemed to care about me as a person. I couldn't have been happier with her!

She took her time to explain all of the procedures and processes.

I think Doctor Mary is one of my best doctors. Very professional.

Dr. Kellis listens always to my thoughts and worries. She Is excellent at her craft

I will recommend her for anyone that needs an Endo Doctor.

I love Dr. Mary Kellis!!! This is coming from a woman that does not usually like Dr's. She was concerned about me. I have never felt that from any of my other Dr's before. She was very thorough in our discussion. Gave me advice. Waited to see if I had questions, and then answered them. What a gem Cleveland Clinic has. I trust her already with my health. Thank you so much for that positive experience Dr. Kelllis!

I feel proud to be Dr. Kellis's patient. She has been very patient and attentive to my health care.

She is a great doctor.

Dr Kellis is wonderful

Dr.Kellis is an excellent physician....very thorough!

Dr. Kellis is an amazing Endocrinology provider. She has changed the way I feel about visits, she makes it easy and really helps to make positive changes.

Dr Kellis is awesome. Warm personality and very caring.

Dr. Kellis is an excellent physician. I am grateful for her care!

Dr. Kellis is fantastic! I have seen her for many years, and she has taken excellent care of me. She improved my health greatly, and she is also a very nice and caring person. I am blessed to have her!

Dr. Mary Kellis has been a real blessing to me. The time she takes to help me is remarkable. With her help I have been able to lower my A1C to 6.4 and I have been a type 1 diabetic since 1983. I am so grateful that she took me as a patient a couple of years ago.

Dr. M Kellis is terrific to work with.

Dr Kellis is wonderful to work with. She exudes kindness and possess a very calming demeanor.

I have already recommended this care provider to 3 of my siblings.

I've been very pleased with all the doctors I've had at the clinic.

Dr Kellis was very friendly, professional, and thorough. I thought she really cared for me as an individual.

Dr. Kellis is very attentive and concerned about my care.