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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
  • Pouch Center
View all 5 Treatment & Services +

Specialty in Diseases & Conditions

  • Clostridium Difficile Colitis
  • Crohn's Disease
  • Gastrointestinal Diseases
  • Inflammatory Bowel Disease (IBD)
  • Microscopic Colitis
  • Ulcerative Colitis
View all 6 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

Fellowship - University of Chicago Hospitals
Chicago, IL

Residency - Temple University Hospital
Internal Medicine
Philadelphia, PA

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

Undergraduate - Haverford College
Haverford, PA


  • Internal Medicine - Gastroenterology
  • Internal Medicine

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 3/22/2024, Dr. Lashner has reported the financial relationships with the companies listed below. 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

321 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
4.4 out of 5
Explains 4.4
Courtesy, Respect & Concern 4.5
Patient Rating of Doctor 4.4

54 Patient Comments

Reviewed on May 20, 2024

He is low-key and does not ake me anxious. I can talk to him or message him without fear of judgement.

Reviewed on May 10, 2024

Dr. Lashner explained the reason for the treatment.

Reviewed on May 10, 2024

Dr. Bret A Lashner was very knowledgeable about my problem and gave me several suggestion on how to improve my health. He was by far the best provider that I had spoken to about my illness.

Reviewed on May 1, 2024

Didn't feel as though the doctor had even looked at my medical records prior to visit and the experience during my visit after driving a substantial distance to get there felt extremely rushed. I did not feel as though my concerns or even reason for my visit was addressed I was scheduled for a test then sent on my way. The whole experience caught me completely off guard.

Reviewed on Apr 30, 2024

Excellent informative doctor

Reviewed on Apr 30, 2024

Dr. Brent Lashner listened to me and heard me. This is why I am still communicating with Dr Brent Lashner still to this day. Giving him updates on what is still going on with my care. I feel better knowing that he Cares about my Health. Dr. Brent Lashner is my number 1 Doctor.

Reviewed on Apr 30, 2024

Dr. Brent Lashner cares about his Clients a lot. This makes me feel better knowing that I'm at the right place.

Reviewed on Apr 17, 2024

Dr. Lashner was wonderful to work with!

Reviewed on Apr 16, 2024

Dr Lashner is a very kind and caring man I

Reviewed on Apr 15, 2024

Dr. Lashner signed on and started the appointment early and really listened to me and what I was saying.

Reviewed on Apr 10, 2024

The doctor was very kind and listened to me. He ordered exactly what I had.been trying to get done at home with no luck. Great doctor

Reviewed on Apr 1, 2024

He's a very caring and sweet person. I enjoyed talking with him

Reviewed on Mar 29, 2024

Dr Lashner is the best

Reviewed on Mar 28, 2024

Dr. Lashner has helped me solve a problem that I have been going to UH for 5 plus years. Dr lashner has improved and help me Improve my situation

Reviewed on Mar 21, 2024

Dr Lashner is the best gastroenterologist I have found. I am very pleased to be under his care.

Reviewed on Mar 18, 2024

Dr Laschner is amazing. He saved my life a few years ago and he continues to give me outstanding care he's a gem.

Reviewed on Mar 11, 2024

Dr. Bret Lashner was genuinely kind, caring, friendly and highly knowledgeable. I truly felt his sincerity during my visit. He reviewed my case and gave me great patient care advice. I would highly recommend my friends and family to Dr. Bret Lashner.

Reviewed on Mar 7, 2024

Dr Lashner is excellent !

Reviewed on Feb 23, 2024

Dr Lashner was my first negative encounter with any staff at CCF in over 30 years as a patient.

Reviewed on Feb 14, 2024

Provider did not spend much time talking to me as a person. Felt more like a process.

Reviewed on Feb 12, 2024

Dr. Lashner was wonderful!

Reviewed on Jan 16, 2024

Dr Lashner is always great

Reviewed on Jan 12, 2024

Dr Lashner was extremely nice & answered any questions I had. Great " bedside manner" !

Reviewed on Jan 5, 2024

Dr. Lashner is very patient and reassuring regarding treatments as well as duration of medication

Reviewed on Jan 4, 2024

While we didn't meet in person, I felt comfortable that this Dr. Had my best health interests in mind.

Reviewed on Dec 18, 2023

I can't come there in person so I appreciate being able to consult with Dr. Lashner by video and phone.

Reviewed on Dec 13, 2023

I love my doctor & care team !!!

Reviewed on Dec 12, 2023

Dr Lashner has always been great to work with

Reviewed on Dec 1, 2023

Dr. Lashner is the FIRST doctor I have seen in 18 months that has said that I would be involved in my health care!! He listened; he wasn't dismissive & he conveyed a heartfelt concern for me as a patient and as a person. To Dr. Lashner, I wasn't just a number to add to the count of patients seen. At last a doctor that could grasp my utter fear over my gastro problemsat last, a doctor with empathywith an honest concern and care for his patient. Dr. Lashner explained what imaging he would order & assured me that he will consult with other specialists & lead me to the best surgeon(s) as needed.

Reviewed on Dec 1, 2023

I feel relief & very much at ease with my choice & decision to come to the Cleveland Clinic & to see Dr. Lashner. A person's last name shouldn't have to be Rockefeller or Bezos in order to get healthcare where a doctor listens and a doctor provides feedback and explanations and assures the patient that he/she will be involved in their own health care. A patient's last name shouldn't have to be Rockefeller or Bezos to be assured that they will be lead to the best surgeon should surgery be needed. Lastly, a patient's last name should not and NEVER be what will guarantee that everything that can be done will be done and that not even the smallest stone will be left unturned in a rush to find out how to restore my health.Down to my core, I know I've made the right decision by choosing Dr. Lashner & the Cleveland Clinic.

Reviewed on Nov 27, 2023

Dr. Lashner listens very well and is very easy to work with and understand. He takes time and genuinely seems to care about who he's treating. I would certainly recommend him to anyone looking for a professional at Cleveland clinic.

Reviewed on Nov 27, 2023

Dr. Lashner is the best.

Reviewed on Nov 22, 2023

Dr Lashner is always professional and informative

Reviewed on Nov 10, 2023

The doctor took the time to listen to everything that was going on and ask questions about things I had been doing to try and help. The talked about a plan of action and asked my opinion about everything and took that in the plan. He really put me at easy that I was being heard and we would get it figured out.

Reviewed on Nov 7, 2023

Dr Bret Lashner is the best. He has kept my Crohns disease under control for over fifty years and he always responds to problems.

Reviewed on Oct 24, 2023

Dr. Lashner has consistently been an excellent doctor. He answers MyChart and phone calls promptly, he listens to my questions and my opinions and suggestions. There is nothing to say that is negative about Dr. Lashner...I wish he could be my Internal Medicine doctor.

Reviewed on Oct 24, 2023

Dr Lashner was great

Reviewed on Oct 6, 2023

Resident was excellent. Saw her before the dr.

Reviewed on Oct 4, 2023

He has a great bedside manner, showed empathy when needed, showed that he's invested in his patients. He truly listened and wants to be involved every step of the way.

Reviewed on Sep 26, 2023

Dr was terrific, answered all my questions

Reviewed on Sep 26, 2023

My microphone would not work during the video appointment. Cancelled video visit. Talked on phone.Easy to arrange an appointment. Associates, Trudy and the nurse Ann, are very helpful and nice at my Dr. Lashner's office.

Reviewed on Sep 26, 2023

Dr. Lashner is the best. He always takes concern of my health problems when I need his advice. We did not discuss any treatment options this time. I just had a couple of questions about my condition.

Reviewed on Sep 22, 2023

Thought Dr. Lashner was outstanding

Reviewed on Sep 8, 2023

All staff and doctors were very cordial, professional and informative.

Reviewed on Sep 8, 2023

Doctors listened to and documented concerns and shared approaches moving forward.

Reviewed on Aug 30, 2023

I was incredibly impressed with Jennifer Blonick. She took time, listened to me, asked ME questions and had followup questions, gave everything careful consideration and concern and proposed a path forward. I have never been treated with this much care and respect by any medical professional ever. She truly cared about my situation and I am forever grateful for her time and care!

Reviewed on Aug 18, 2023

I felt like I was really listened too. He based my treatment on me and my situation. I did not feel rushed either and got all of my questions answered as well as told what to do if I had more questions.

Reviewed on Aug 17, 2023

Dr. Lasner saved my life.

Reviewed on Aug 10, 2023

I always have a good experience with Dr Lashner

Reviewed on Jul 31, 2023

I am so impressed with this Dr. Very empathetic and caring.

Reviewed on Jul 17, 2023

Dr. Lashner is kind, helpful, willing to discuss options and makes me feel like a partner in my wellbeing.

Reviewed on Jul 5, 2023

Dr Lashner was one of the best physician's I have.ever seen. He was respectful and gave me a sense of hope. I would recommend him with no hesitation.

Reviewed on Jun 7, 2023

Dr. Lashner was very kind and put my Mom at ease and he carefully listened to her concerns and encouraged questions. My Mom left his office hopeful and very confident that he could help her.

Reviewed on May 31, 2023

Dr Lashner is the best!!!

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