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

Treatment & Services

  • 24-Hour Esophageal pH Test
  • Anorectal Manometry
  • Blood Tests
  • Breath Test For Helicobacter Pylori
  • Center for Pediatric Gastroenterology
  • Colonoscopy
  • Computed Tomography (CT Scan)
  • Diagnostic Endoscopy
  • Dietary Management For Ibd In Children And Adults
  • Egd
  • Endoscopic Dilation
  • Endoscopy
  • Endoscopy - Upper
  • Evaluation for Caustic Ingestion
  • Flexible Sigmoidoscopy
  • Food Challenge Test
  • Foreign Body Removal
  • Gastrointestinal Endoscopy
  • Gastrointestinal Exams
  • Hydrogen Breath Test
  • Infusion Therapy
  • Lactose and Glucose Hydrogen Breath Test
  • Laparoscopic Surgery
  • Liver Biopsy
  • Nutritional Assessment And Support In Children
  • Outpatient Care
  • Pediatric Gastroenterology
  • Percutaneous Endoscopic Gastrostomy (PEG)
  • pH And Impedance Monitoring
  • Polypectomy
  • Pouch Center
  • Proctoscopy
  • Pyloric Dilatation
  • Sclerotherapy
  • Screening and Testing
  • Therapeutic Endoscopy
  • Variceal Band Ligation
  • Wireless Capsule Endoscopy
View all 38 Treatment & Services +

Specialty in Diseases & Conditions

  • Abdominal Pain
  • Achalasia
  • Anal Fissures
  • Bowel Incontinence
  • Caustic Ingestion
  • Celiac Disease (Celiac Sprue)
  • Colic
  • Collagenous Colitis
  • Colon Polyps
  • Constipation
  • Crohn's Disease
  • Diarrhea
  • Eosinophilic Esophagitis
  • Eosinophilic Gastroenteritis
  • Esophagitis
  • Failure To Thrive
  • Food Allergies
  • Foreign Body Ingestion
  • Gallbladder Disease
  • Gallstones
  • Gas (Digestive)
  • Gastritis
  • Gastroenteritis
  • Gastroesophageal Reflux (GERD)
  • Gastrointestinal Tract
  • GI Bleeding
  • Giardiasis
  • Heartburn
  • Heliocobactor Pylori
  • Hepatitis B
  • Hiatal Hernia
  • Hirschsprung's Disease
  • Inflammatory Bowel Disease (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Lactose Intolerance
  • Liver Disease
  • Malnutrition
  • Malrotation
  • Microscopic Colitis
  • Milk Allergies
  • Milk Allergy
  • Nausea
  • Obscure Gastrointestinal Bleeding
  • Pancreatic Disease
  • Pancreatitis
  • Pediatric Constipation
  • Pediatric Crohn's Disease
  • Pediatric Cyclic Vomiting Syndrome
  • Pediatric Dehydration
  • Pediatric Growth Failure In Children With Kidney Disease
  • Peptic Ulcer Disease
  • Pinworms
  • Primary Sclerosing Cholangitis
  • Proctitis - Care & Treatment
  • Radiation Enteritis
  • Rectal Prolapse
  • Recurrent Abdominal Pain
  • Rotavirus
  • Short Bowel Syndrome in Children
  • Small Bowel Bacterial Overgrowth
  • Soy Allergy
  • Swallowing Disorders
  • Tracheoesophageal Fistula
  • Treating Heartburn with Surgery
  • Trichinosis Overview
  • Ulcerative Colitis
  • What is Inflammatory Bowel Disease?
View all 67 Specialties +


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About Lori Mahajan, MD

Lori A. Mahajan, MD, is Director of the Pediatric Gastroenterology Fellowship Program and a Staff Physician in the Department of Pediatric Gastroenterology at Cleveland Clinic.

Her treatment interests include recurrent abdominal pain of childhood, acid-peptic disorders including gastroesophageal reflux disease (GERD), failure to thrive, feeding and swallowing disorders, inflammatory bowel disease, allergic gastroenteritis including milk and soy protein allergy as well as eosinophilic esophagitis, diarrhea, constipation, celiac disease, nutrition services, lactose intolerance, pancreatic disease and pediatric enteral access.

Dr. Mahajan's specialty procedural interests include diagnostic and therapeutic endoscopy as well as wireless capsule endoscopy.

She is specialty board-certified by the American Board of Pediatrics and certified in the subspecialty of pediatric gastroenterology. She is BLS Certified and PALS Certified.


Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Cleveland Clinic
Pediatric Gastroenterology
Cleveland, OH USA

Residency - Wright State University Affiliated Hospitals
Dayton, OH USA

Medical Education - Northeastern Ohio Universities College of Medicine
Rootstown, OH USA

Undergraduate - Kent State University
Integrated Life Sciences
Kent, OH USA

Additional Training

  • Professional Military Education: Health Professions Officer Indoctrination Course; Lackland Air Force Base; School of Aerospace Medicine, Brooks Air Force Base
  • Military Experience: Commissioned Officer, United States Air Force, April 1987
  • Service: Reserve or active duty status until July 30, 2001


  • Pediatrics
  • Pediatrics - Pediatric Gastroenterology

Specialty Interests

colitis, Crohn's Disease, Diagnostic and therapeutic endoscopy, gastroesophageal reflux disease, Inflammatory bowel disease, nutritional assessment and support in children, peptic ulcer disease, recurrent abdominal pain, wireless capsule endoscopy

Research & Publications

Research & Publications

See publications for Lori Mahajan, 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 4/21/2020, Dr. Mahajan 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

46 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
Listens 3.7
Courtesy, Respect & Concern 4.9
Time Spent with Patient 4
Patient Rating of Doctor 5

22 Patient Comments

Reviewed on Jan 19, 2021

Dr. Mahajan is an excellent Dr! she really listens to the parent and is very empathetic!

Reviewed on Dec 10, 2020

Once we reached Dr. M, our visit was fabulous. She is very caring and kind and gave me all the detailed information I was looking for. Unfortunately I was under the impression that your gastro department had merged with functional medicine (I was told that by one of the operators) but Dr. M informed me that was not true and that the department's are separate. She did offer to set up a consult in functional medicine if I still wanted one.

Reviewed on Dec 4, 2020

I have already recommended Dr Mahajan to others. She is a phenomenal doctor and an extremely kind and understanding individual. She is one of the few doctors that my daughter trusts.

Reviewed on Dec 1, 2020

Dr M is amazing

Reviewed on Nov 20, 2020

Dr. Mahajan always listens and I believe that is what makes her an excellent doctor.

Reviewed on Oct 13, 2020

Exceptional doctor that came highly regarded by my family member!

Reviewed on Sep 4, 2020

an wonderful gi and example of what a physician should strive for

Reviewed on Aug 27, 2020

We were thoroughly impressed with Dr. Mahajan and thankful that she is now part our son's care team!

Reviewed on Aug 20, 2020

Dr. Mahajan is amazing! Her fellow shadowing her was also very kind, through, and knowledgeable.

Reviewed on Aug 20, 2020

Although it has taken 2 years to get a definitive diagnosis for Ashley, Dr. Mahajan worked with us and listen to everything we had to say. We are greatfull to have her as Ashley (and her sister, Alyson's, GI doctor. She is amazing!

Reviewed on Aug 14, 2020

Dr Mahajan and Dr Hillow were excellent , very detailed and provided excellent guidance! thank you to you all .

Reviewed on Aug 13, 2020

Dr. Mahajan is one of the most kind, compassionate, and caring drs I have ever met. she is attentive, thorough and relates well. I would highly recommend her to others

Reviewed on Jun 19, 2020

Dr. Mahajan is an excellent doctor. Whether the appointment is in person or through video, she is so kind and caring, takes time, listens to our concerns and answers our questions. We highly recommend Dr. Mahajan.

Reviewed on Jun 16, 2020

We love Dr. Lori Mahajan!!

Reviewed on Jun 16, 2020

Dr. Mahajan represents everything that is good and pure in this world as a physician. My teenage son cannot wait to see and talk with her at every visit. She is the most kind hearted soul that we know of and her skill level is second to none.

Reviewed on Jun 16, 2020

we recommend Dr Mahajan to everyone we know!

Reviewed on Jun 12, 2020

The doctor took so much time to talk through the plan and really understood the problem

Reviewed on May 19, 2020

Dr. Mahajan is a wonderful, caring and intelligent doctor!!

Reviewed on May 8, 2020

Dr. Mahajan is the best doctor. She is very skilled at listening

Reviewed on Mar 31, 2020

*Dr. Lori Mahajan has been outstanding. She genuinely cares and carefully listens, while forming a great bond with patient and parents.

Reviewed on Mar 3, 2020

Gosh...if I could take Dr. Lori Mahajan home with us, I would in a heartbeat!! She has saved our son's life. She has been a gift sent to us from God above. Her professionalism, her sweet and loving nature, her bedside manner, her genuineness, her honesty, her intelligence and level of expertise. There are just not enough adjectives and verbs in the English language to describe how she has treated our most valuable treasure and also the way she has treated us as such an important part of the team for our son to gain weight and THRIVE!!! We have grown so fond of Dr. Mahajan, I just cannot imagine life without her in it for us...I'm a Registered Nurse for almost 30 years and hands down, Dr. Mahajan is by far one of the most top notch docs I have ever met. Her knowledge and skill level is second to none. Please, please commend her on the care that she im sure not only provides to our son by every single patient. Our son adores her and we all look forward to seeing her every single time. God Bless her!!! I wish I knew more people like her in this world.

Reviewed on Mar 3, 2020

I have recommended Dr. Mahajan to everyone that I could think of that would benefit from her care.

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