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Department Gastroenterology, Hepatology & Nutrition
Primary Location Concord Office and Endoscopy Ctr
Type of Doctor Adults Only
Languages English
Surgeon No


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Residency - University Hospitals of Cleveland
Cleveland, OH USA

Medical Education - Albany Medical College
Albany, NY USA


  • Internal Medicine - Gastroenterology
Research & Publications

Research & Publications

See publications for Gregory Powell, MD.

(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 1/10/2020, Dr. Powell 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

318 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

42 Patient Comments

Reviewed on Oct 14, 2021

Great staff and doctor!

Reviewed on Oct 7, 2021

Dr. Powell and the entire staff were wonderful!

Reviewed on Sep 14, 2021

I was highly impressed with this particular colonoscopy. Dr. Powell provided an impeccable service. He explained the process and was willing to answer questions.

Reviewed on Sep 3, 2021

World class care from Dr. Powell-bravo!

Reviewed on Sep 2, 2021

Dr Powell explained everything to me so I could understand. He reassured me that I was doing everything I could to help myself.

Reviewed on Aug 30, 2021

Dr. Powell is an amazing doctor.

Reviewed on Aug 24, 2021

Love everything about Dr. Powell and his staff.

Reviewed on Aug 23, 2021

What a great team at the Landerbrook Gastrointestinal office I have already referred 2 people specifically to Dr. Powell

Reviewed on Aug 20, 2021

Dr Powell explained everything very carefully and made me feel at ease felt he was very knowledgeable about my condition

Reviewed on Aug 4, 2021

Dr. Powell answered and explained all questions thoroughly. I have already recommended him to several friends.

Reviewed on Aug 4, 2021

Experience was great from making the appointment, working with staff, and consulting with Dr. Powell. Thank you

Reviewed on Jul 16, 2021

Everyone involved with the procedure was respectful and friendly. They all made me feel very comfortable. Dr. Powell coming into the room before my procedure to speak with me was so nice.

Reviewed on Jul 16, 2021

Dr. Powell and his team were all very caring.

Reviewed on Jul 16, 2021

Working with Dr. Powell's team from setting up the appointment to the completion of the procedure was very easy and stress free. I wish it were this easy to get appointments and procedures done with my primary care physician!

Reviewed on Jul 15, 2021

Dr. Powell is very thoughtful and concerned about your medical issues. Listens and decides the best way to take care of you. Would highly recommend him.

Reviewed on Jul 8, 2021

The caregiver that administered the test claims the Doctor would call me the next day with the results, and the test results would be on my chart in a week. I have not heard from Dr. Powell and the test results have not been posted on my chart yet. I see this is the norm for Dr. Powell's office. Same exact thing happened when I had my colonoscopy.

Reviewed on Jul 1, 2021

Dr. Powell is right on when it comes to patient care. He is supportive, friendly and knowledgeable. He is first doctor I've ever encountered who not only read my file and history before seeing me but knew outcomes of previous testing to discuss with me. I was quite impressed by his thoroughness.

Reviewed on Jul 1, 2021

I'd recommend Dr. Powell in a heartbeat.

Reviewed on May 24, 2021

Dr Powell was great, he asked me questions about the health concerns that brought me in. I appreciate his knowledge and willingness to listen to me.

Reviewed on May 18, 2021

Dr. Gregory Powell provides the very best medical service & follow up for myself & two additional family members, I referred to him. He is very thorough, answers questions & follows through on nagging, health issues. A huge thank you for the ongoing care. We would prefer to see him return some days to the Concord/ Fredle Dr. facility in Lake County.

Reviewed on May 18, 2021

Dr. Powell always listens to everything you have to say. He never makes you feel rushed. A very good Dr.

Reviewed on May 14, 2021

This was my first visit with Dr. Gregory Powell. He was patient, a good listener, explained thoroughly, answered all my questions. He treated me as an individual, fashioning his care to conform to my individual needs and lifestyle. He took a conservative approach rather than leapfrogging needlessly to more extreme measures. When the results of the blood test he ordered came out favorably, he messaged me on MyChart ("Great news!"), which I greatly appreciated. I would recommend Dr. Powell highly to anyone with GI symptoms.

Reviewed on May 12, 2021

Dr. Powell was great.

Reviewed on May 6, 2021

Dr. Powell explains what i need to know which alleviates my fears.

Reviewed on May 4, 2021

dr. powelll and his staff all were excellent .very caring and attentive in making you feel very comfortable. and at ease for your procedure. they are a credit and a model for clev. clinic patient care medical care.

Reviewed on May 4, 2021

every one dr. Powell and his entire staff were too professionals and well trained and very. knowledgeable..

Reviewed on Apr 22, 2021

Dr Powell was very thorough, personal , concerned with my care and treatment options and extremely generous with his time

Reviewed on Apr 22, 2021

I felt very comfortable with Dr Powell. he was easy to talk to and explained everything clearly.

Reviewed on Apr 16, 2021

Doctor was personable and professional. Met for the first time just before procedure.

Reviewed on Apr 7, 2021

Dr. Powell's assistant Becki is kind, caring, compassionate and always willing to help. When you are calling a Dr. office the chances are you need help and she is always there.

Reviewed on Apr 7, 2021

Dr. Powell always take excellent care of me. It is not easy to have a chronic problem and need constant care and have questions and concerns. He is always there to answer my questions and put my concerns to rest. He is amazing. I feel blessed to have him as my care giver for this particular illness.

Reviewed on Apr 6, 2021

Dr Powell made me comfortable and was not like most Dr's, in a huge rush to get out the door. He explained everything and answered all my questions.

Reviewed on Mar 31, 2021

it was a great experience the Nurses and Dr were very pleasant and helpful

Reviewed on Mar 12, 2021

Dr. Powell is very professional and yet very kind and caring.

Reviewed on Mar 11, 2021

great down to earth doctor. very knowledgeable and honest. Very happy to know him..

Reviewed on Mar 11, 2021

very comfortable with this doctor. im pleased already

Reviewed on Mar 10, 2021

I only saw the doctor for 30 seconds to sign the pad. No real communication.

Reviewed on Mar 5, 2021

I always have good experiences dealing with Dr. Powell & his staff.

Reviewed on Mar 4, 2021

I have never had a provider that took the time and also understood my unique situation to help me best decide what course of action was best for my needs.

Reviewed on Jan 25, 2021

Dr. Powell and his staff are awesome.

Reviewed on Jan 19, 2021

I would rate my experience as excellent. Dr. Powell and his staff are very professional, efficient and caring. They explain everything so you know what to expect.

Reviewed on Jan 15, 2021

I had an excellent experience! staff was very pleasant and accommodating! I will highlyrecommend Dr Powell to others

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