Department Gastroenterology & Hepatology
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 - 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 School - 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 10/18/2018, 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

245 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 4.7
Listens 4.7
Courtesy, Respect & Concern 4.8
Knows Medical History 4.4
Time Spent with Patient 4.6
Patient Rating of Doctor 4.6

23 Patient Comments

Reviewed on Nov 9, 2018

everything was excellent, dr lasher was providing a second opinion on my ulcerative colitis

Reviewed on Nov 6, 2018

I was very pleased with Dr.Lashner. He seems very wise and has a great sense of humor.

Reviewed on Oct 31, 2018

dr lashner confidently explained to me how others may have misconceptions about the medication I am on and I left there feeling so relieved.

Reviewed on Oct 31, 2018

Dr. Lashner always makes me feel like I don't need to worry and he reminds me that he is always available for me.

Reviewed on Oct 17, 2018

We were very pleased with how we were treated and the respect we was shown. Everyone was prompt and seemed very concerned about my situation. We drove 6 hours there and 6 hours back and it was definitely worth the drive!! We highly recommend this clinic and Dr. Lashner. Dr. Lashner was right in top of things to get me the help I needed. I am thankful to God that he lead me to this place. Thank you guys for all that you've done.

Reviewed on Sep 18, 2018

I brought a disk from an outside source the nurse said she would download/ the dr said it was not there/he left and came back and said someone else better able to review the disk would look at it and they would follow up w me. I have not heard anything to date!!! This was an important follow up appt from a hospital sat out of state due to emergency. I have message via my chart and spoke to the office/still have not recved a response regarding my disk/ct. Very disappointed!

Reviewed on Aug 14, 2018

Great doctor, you need to hire more doctors like him.

Reviewed on Aug 10, 2018

Dr. Lashner is not afraid to send me to a specialist if he believes it is in my best interest. Dr. Lashner never tries to just take a stab in the dark and prescribe something and just hope he is right. That is why I drive 2 1/2 hours because I trust his opinion and advice and recommendations.

Reviewed on Jul 17, 2018

Dr. Lashner was very good. I've had many different doctors in the CCF network over the years and this past visit, his bedside manner and overall time spent and how he interacted were top notch!

Reviewed on Jul 9, 2018

first time there. really liked everything about the offic. really liked the dr. my daughter and i were very happy with the visit.

Reviewed on Jun 28, 2018

Dr Lashner and all staff EXCELLENT!!!

Reviewed on Jun 26, 2018

Dr. Lashner suggested I have EGD, but he did not provide a specific order for that to be done.

Reviewed on Jun 26, 2018

I was delayed by an hour due to appointment on main campus, but Dr. Lashner was kind enough to still see me.

Reviewed on Jun 19, 2018

Dr. Lashner is a very intelligent and easy to talk to doctor. He understands your concerns and you can be confident he'll take action to take care of you. I liked that my test results were on MyChart quickly.

Reviewed on Jun 19, 2018

Dr Lashner explains everything you need to know and answers all questions thoroughly.

Reviewed on Jun 8, 2018

Very personable, attentive, caring physician and staff

Reviewed on Jun 1, 2018

Excellent medical assistant and nurses work with an Dr. Lashner. Always treated with kindness and sensitivity.

Reviewed on Jun 1, 2018

Dr. Lashner is very knowledgeable and professional and always treats me with kindness understanding. I feel fortunate to be his patient.

Reviewed on Jan 29, 2018

I was admitted immediately to the hospital..Dr Lashner explained every detail..personally wrote directions to the hospital down for me..such a kind man

Reviewed on Jan 29, 2018

I believe the attitude of the first person you meet in the reception area sets the tone of your entire visit..the friendly hello and big smile of Dr Lashners receptionist set the tone of "I'm gonna have a good day here" for me

Reviewed on Jan 22, 2018

1. Medication I'd been given in the emergency room was not discussed. I was not told whether to continue with it. I was not given any prescriptions, except the liquid to prepare for a colonoscopy which was not to be scheduled for another month. This is very concerning to me.

Reviewed on Jan 22, 2018

Kathy set me up with MY CHART , & Dr. Lashner explained that I can email him & he will answer, or come to the Twinsburg Office on a Tues . Terrific !!

Reviewed on Jan 9, 2018

Dr. Lashner was excellent help.

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