Department Gastroenterology, Hepatology & Nutrition
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon No
Locations Specialties & Treatments

Treatment & Services

  • Clinical Epidemiology
  • Colonoscopy
  • Endoscopy
  • Gastrointestinal Exams
  • General Gastrointestinal Disease
View all 5 Treatment & Services +

Specialty in Diseases & Conditions

  • Clostridium Difficile Colitis
  • Crohn's Disease
  • Inflammatory Bowel Disease (IBD)
  • Microscopic Colitis
  • Ulcerative Colitis
View all 5 Specialties +


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About Bret Lashner, MD

Bret A. Lashner, MD, is Director of the Center for Inflammatory Bowel Disease in the Department of Gastroenterology at Cleveland Clinic in Cleveland, Ohio. Dr. Lashner is board-certified in internal medicine and gastroenterology, and he specializes in ulcerative colitis, Crohn's disease, and general gastrointestinal disease. In 1999, he was awarded the Premier Physician Award from the Crohn's and Colitis Foundation of America.

A frequent lecturer at national and international meetings, Dr. Lashner also serves on the editorial boards of peer-reviewed publications, including the American Journal of Gastroenterology, Journal of Clinical Gastroenterology and Inflammatory Bowel Diseases. He has served as principal investigator for many clinical trials on inflammatory bowel disease and has published extensively on clinical aspects of inflammatory bowel disease.

Dr. Lashner is a member of the American Gastroenterological Association, American Society for Gastrointestinal Endoscopy and the Crohn's and Colitis Foundation of America. He is a fellow of the American College of Gastroenterology.

Dr. Lashner received his medical degree from New York University and completed his internal medicine residency at Temple University Hospital in Philadelphia. He completed a fellowship in gastroenterology at the University of Chicago, and obtained his Master of Public Health from the University of Illinois at Chicago.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Graduate School - University of Illinois at Chicago Medical Center
Epidemiology /Biometry
Chicago, IL USA

Fellowship - University of Chicago Hospitals
Chicago, IL USA

Residency - Temple University Hospital
Internal Medicine
Philadelphia, PA USA

Medical Education - New York University School of Medicine
New York, NY USA

Undergraduate - Haverford College
Haverford, PA USA


  • Internal Medicine
  • Internal Medicine - Gastroenterology

Specialty Interests

Crohn's Disease, General Gastrointestinal Disease, Ulcerative Colitis

Research & Publications

Research & Publications

See publications for Bret Lashner, 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 11/4/2020, Dr. Lashner 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

232 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
4.7 out of 5
Explains 4.6
Courtesy, Respect & Concern 4.7
Patient Rating of Doctor 4.7

43 Patient Comments

Reviewed on Nov 25, 2020

Dr. Bret provided great care. He explained the results of my procedure and made sure I knew to contact him if I had more questions.

Reviewed on Nov 12, 2020

Dr. Lashner has gone above and beyond to help me solve my complicated situation. He has been compassionate and supportive of me and my Husband in trying to resolve this situation. We feel that with his expertise & knowledge we are going to find a solution with him on our Team.

Reviewed on Nov 12, 2020

Dr. Lashner is a very dedicated, empathetic person. I am so fortunate to have him care for my needs

Reviewed on Nov 9, 2020

excellent dr. very informative and interested in what I had to say. extremely friendly and great overall experience with him.

Reviewed on Nov 3, 2020

I had talked previously with Dr. Leshner and had a second good experience with him.

Reviewed on Oct 9, 2020

we traveled over 500 miles to see this doctor and he says well I can't do anything for you because I don't have any of your reports they should have told us this in the beginning

Reviewed on Oct 6, 2020

The care provider friendliness helped put some nervousness to ease.

Reviewed on Sep 24, 2020

Dr. Lashner was great. He was clear, understanding, and helpful.

Reviewed on Sep 24, 2020

Dr Lashner and his staff are always wonderful to work with.

Reviewed on Sep 11, 2020

Dr. Lashner kept going over and over my issues and concerns and kept asking me if I had any questions. He did reiterate his recommendations until the light bulb came on!.

Reviewed on Aug 31, 2020

Talking to Dr Lashner was like talking to a friend, he made me feel so at ease.

Reviewed on Aug 26, 2020

Dr Laschner is a caring comforting doctor to have. he is always so helpful

Reviewed on Aug 7, 2020

My appointment was very easy to login and Dr. Lashner was very prompt. There was no waiting.

Reviewed on Aug 7, 2020

Dr. Lashner was very helpful and thorough.

Reviewed on Jul 29, 2020

*Dr. Lashner is a good man. Easy to talk to.

Reviewed on Jul 24, 2020

Dr. Lashner was kind and professional. He was sincerely interested in solving my medical problems.

Reviewed on Jul 22, 2020

awesome experience dr latshner was great

Reviewed on Jul 1, 2020

Doctor was to contact a surgeon and he said we should expect a response that afternoon or the next morning, still have not heard

Reviewed on Jun 25, 2020

Dr Lashner, is so kind, understanding and flexible as always!

Reviewed on May 27, 2020

Dr. Bret was very easy to talk to and gave me good advice.

Reviewed on May 26, 2020

I have NEVER had a poor experience with Cleveland Clinic, the facility is amazing, so is my doctor

Reviewed on May 26, 2020

doctor Lashner is top of the line, I recommend him and Cleveland Clinic to everyone

Reviewed on May 22, 2020

Dr Lashner was knowable and current on my case history. He was prompt calling on scheduled time and had a great demeanor. He arranged for a needed prescription and made aure it was called in a timely manner. he was easy to carry on a conversation with and look forward to a long relationship in the years to come.

Reviewed on May 12, 2020

Dr. Lash ERM was an excellent listener, and answered my questions.

Reviewed on May 8, 2020

Dr Lashner was very personable and professional

Reviewed on Apr 27, 2020

Dr Lashner was informative & understood the entire issue. He also recommended a different probiotic which is in use.

Reviewed on Mar 11, 2020

Excellent! Thank you Dr. Lashner, Schelena, Phyllis

Reviewed on Mar 9, 2020

Always enjoy Dr. Lashner!! Good humor, better care.

Reviewed on Mar 2, 2020

Doctor was very friendly and helpful

Reviewed on Feb 28, 2020

The entire experience with all of Cleveland Clinic's employees was exceptional!Dr Lashner was very professional and personable. He took his time asking questions and listening to all of my answers.

Reviewed on Feb 28, 2020

Most definitely will recommend Dr Lashner and Cleveland Clinic!

Reviewed on Feb 28, 2020

Dr. Bret Lashner was the best choice for me. He answered my questions and concerns and made me feel at ease.

Reviewed on Feb 14, 2020

I recently referred Dr. Lashner to a co-worker

Reviewed on Feb 5, 2020

doctor was outstanding. my case was very complex and difficult.

Reviewed on Feb 4, 2020

Dr Lashner is an excellent doctor i have been seeing him for 20 years

Reviewed on Feb 3, 2020

MD did not allow me to explain everything that was going on nor did he provide me with a dx or plan of care other than meeting with the a bariatric surgeon.

Reviewed on Jan 30, 2020

Doctor Lashner was very competent and courteous. really good visit.

Reviewed on Jan 29, 2020

Dr Lashner is an excellent Doctor!

Reviewed on Jan 29, 2020

Best Doctor ever!

Reviewed on Jan 15, 2020

The fellow was fantastic, Dr. Lashner was present as well of course.

Reviewed on Jan 13, 2020

it would help if the doctor listened to my concerns and symptoms, instead of just asking the questions he wanted answered and typing on the computer.

Reviewed on Jan 3, 2020

Great experience with Dr Lashner. Professional and thorough

Reviewed on Dec 31, 2019

Dr. Lasher explained everything to me and took time to listen. he is very caring and compassionate.

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