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

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • Clinical Epidemiology
  • Colonoscopy
  • Endoscopy
  • Gastrointestinal Exams
  • General Gastrointestinal Disease
  • Pouch Center
View all 6 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 10/7/2022, 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

174 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
4.6 out of 5
Explains 4.6
Courtesy, Respect & Concern 4.6
Patient Rating of Doctor 4.6

20 Patient Comments

Reviewed on Dec 20, 2022

Dr Lashner is a good doctor.

Reviewed on Oct 20, 2022

Dr was/is professional, knowledgeable and empathetic. Can't ask for anymore.

Reviewed on Sep 29, 2022

Good experienceThanks Dr Lashner.

Reviewed on Sep 6, 2022

Dr. Lashner was awesome. Super knowledgeable and exceptionally compassionate.

Reviewed on Sep 1, 2022

Great doctor

Reviewed on Aug 25, 2022

Dr Lashner always takes time and listens

Reviewed on Aug 25, 2022

Dr Lashner always listens and talks through issues

Reviewed on Aug 22, 2022

I have felt that my Doctor cared about my health and my concerns completely... I'm very glad that I found him and have him as my doctor

Reviewed on Aug 4, 2022

Once you are finally connected to your doctor's office the care gets better. I think there needs to be more training. Follow up could also be better with medical staff

Reviewed on Jun 20, 2022

1st visit w/Dr.Lashner and was very pleased with him...he was willing to try some new ideas that my previous Doctor would not consider.

Reviewed on Jun 8, 2022

Dr Lashner is wonderful. He always gives me the real lowdown on my situation with the info he is given.

Reviewed on May 19, 2022

Dr Lashner seems like a genuinely nice person. I'm glad to find another doctor okay with virtual visits. He knows his stuff and doesn't seem to harp on minutia.

Reviewed on May 10, 2022

Always good to speak with Dr. Lashner...excellent Doctor!

Reviewed on Mar 9, 2022

Dr. Lashner was very nice. Understood my problem well and discussed my situation thoroughly. I felt he certainly knew his field. Was very glad to have met him.

Reviewed on Mar 2, 2022

Always great to see Dr Lashner and his staff is by far the best I have ever dealt with whether in the cleveland clinic system or other systems

Reviewed on Feb 22, 2022

He is a wonderful doctor that I really trust

Reviewed on Feb 21, 2022

Dr. Lashner has been my GI doctor for over forty years and he is the only doctor I trust to handle my Crohns disease and ostomy issues.

Reviewed on Feb 9, 2022

Everything went very well regarding my a with Dr. Lashner.

Reviewed on Feb 8, 2022

Dr. Lashner has been an exemplary care provider for the last 22 years. I am genuinely grateful for his care over the years.

Reviewed on Jan 31, 2022

Great dr. To the point

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