Treatment & Services
- 24-Hour Esophageal pH Test
- Abnormal Liver Tests
- Anorectal Manometry
- Argon Plasma Coagulation (APC)
- Blood Tests
- Cancer Center
- Cancer Screening
- Capsule Endoscopy
- Endoscopic Mucosal Resection
- Endoscopic Ultrasound
- Endoscopic Ultrasound-guided Celiac Block
- Enteral Stent Placement
- Esophageal Band Ligation
- Esophageal Dilation
- Esophageal Manometry Test
- Esophageal Motility Testing
- Flexible Sigmoidoscopy
- Hydrogen Breath Test
- Lactose and Glucose Hydrogen Breath Test
- Motility Catheter Placement
- Nasojejunal Tube Placement
Specialty in Diseases & Conditions
- Abdominal Pain
- Alpha-1 Antitrypsin Deficiency
- Anal Cancer
- Anal Fissures
- Angiodysplasia of Small Bowel
- Autoimmune Chronic Hepatitis
- Avoiding Dehydration, Proper Hydration
- Barrett's Esophagus
- Bile Duct Cancer
- Bile Duct Diseases
- Bile Duct Obstruction
- Bile Duct Stones
- Bowel Incontinence
- Caustic Ingestion
- Celiac Disease (Celiac Sprue)
- Clostridium Difficile Colitis
- Collagenous Colitis
- Colon Polyps
- Colorectal Cancer
- Crohn's Disease
- Diseases of the Liver Biliary Tract and Pancreas
- Duodenal Polyps
- Eosinophilic Esophagitis
- Eosinophilic Gastroenteritis
- Esophageal Cancer
- Esophageal Varices
- Extrahepatic Bile Duct Cancer
- Failure To Thrive
- Familial Adenomatous Polyposis
- Fatty Liver Disease
- Food Borne Illness
- Foreign Body Ingestion
- Fundic Gland Polyps
- Gallbladder Cancer
- Gallbladder Disease
- Gas (Digestive)
- Gastroesophageal Reflux (GERD)
- Gastrointestinal Tract
- General Gastroenterological Disorders
- GI Bleeding
- Heliocobactor Pylori
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Hereditary Non Polyposis Colorectal Cancer
- Hiatal Hernia
- Hirschsprung's Disease
- Inflammatory Bowel Disease (IBD)
- Intestinal Ischemic Syndrome
- Intestinal Pseudo-Obstruction
- Irritable Bowel Syndrome (IBS)
- Juvenile Polyposis
- Lactose Intolerance
- Large Intestine Cancer
- Liver Cancer
- Liver Disease
- Metabolic Syndrome
- Microscopic Colitis
- Milk Allergies
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatic Disease
- Pancreatic Stones
- Peptic Ulcer Disease
- Peutz- Jeghers Syndrome
- Polyposis Syndromes
- Portal Hypertension
- Post-Gastrectomy Syndrome
- Primary Biliary Cirrhosis
- Primary Sclerosing Cholangitis
- Proctitis - Care & Treatment
- Radiation Enteritis
- Rectal Prolapse
- Short Bowel Syndrome
- Small Bowel Bacterial Overgrowth
- Small Bowel Disease
- Small Intestine Cancer
- Stomach Cancer
- Strictures Of The Gi Tract
- Swallowing Disorders
- Tracheoesophageal Fistula
- Trichinosis Overview
- Ulcerative Colitis
- Whipple's Disease
- Wilson Disease
- Zollinger-Ellison Syndrome
Is Cleveland Clinic Part of Your Insurance?
Review a list of accepted insurance plans for our Northeast Ohio locations or learn more about purchasing a contracted managed care plan.View All Plans
Education & Professional Highlights
Education & Fellowships
Graduate School - University of Michigan Ross School of Business
Ann Arbor, MI USA
Fellowship - University of Iowa Hospitals and Clinics
Iowa City, IA USA
Residency - University of Illinois at Chicago Hospitals
Chicago, IL USA
Medical Education - Wayne State University School of Medicine
Detroit, MI USA
Undergraduate - Wayne State University
Detroit, MI USA
- Internal Medicine - Gastroenterology
patient reported outcomes, quality in endoscopy, 30-day readmissions, operations, business development
Research & Publications
(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.)
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 10/5/2022, Dr. Rizk 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.
282 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.
|Courtesy, Respect & Concern||4.9|
|Patient Rating of Doctor||4.9|
23 Patient Comments
Reviewed on Nov 4, 2022
Reviewed on Oct 20, 2022
Dr. Rizk is the absolute best skilled, kind, reassuring and personable!
Reviewed on Sep 30, 2022
Dr. Rizk was very concerned and attentive to my concerns and listened to me carefully. He involved me in all decisions about my care. He shows me that he truly cares about me and my health.
Reviewed on Sep 19, 2022
The doctor was very personable and reassuring.
Reviewed on Sep 19, 2022
Dr. Rizk was very nice very helpful
Reviewed on Jul 15, 2022
Dr Rizk has been mu GI doctor for 10 years. He has consistently treated me with care, kindness and respect.
Reviewed on May 27, 2022
Had to wait almost 3 months to see Dr. Rizk (goes to show how popular he is)
Reviewed on May 26, 2022
Recommend Dr Rizk to any and all
Reviewed on May 13, 2022
Meeting Dr Rizk was a breath of fresh air. He was genuine and treated me very well and answered all the questions and concerns I had.
Reviewed on May 13, 2022
Dr Rizk is a compassionate Dr. We discuss things - I'm not alone in this IBS fight
Reviewed on May 2, 2022
*Dr. Rizk was excellent.
Reviewed on Apr 29, 2022
I absolutely loved Dr Rizk
Reviewed on Apr 12, 2022
Dr. Initiated contact as a reminder to come in for the procedure as I was overdue and why it was necessary to do so based on the results of my last procedure. I was impressed with his concern and efforts at a friendly reminder and scheduling help which worked!
Reviewed on Mar 24, 2022
The staff who assisted Dr. Rizk for my 2 procedures were great. They were congenial, Informative and truly concerned about my wellbeing. I would recommend Dr. Rizk and his staff to anyone.
Reviewed on Mar 22, 2022
Dr. Rizk is very personable & easy to talk to.
Reviewed on Mar 14, 2022
Very excellent care from Dr and Nurses.
Reviewed on Mar 10, 2022
Overall every aspect was fabulous. Staff was great and follow up by Doctor superb! Made the entire experience easy, comforting and informative!
Reviewed on Feb 24, 2022
Fantastic doctor and nurses
Reviewed on Feb 18, 2022
Dr. Rizk is awesome. Has a great personality and makes you feel very comfortable and at ease.
Reviewed on Feb 11, 2022
Dr.Rizk was very professional and personable; Both my wife and I liked him very much; He was very patient and very easy to talk to
Reviewed on Feb 11, 2022
Dr.Rizk is very humble and wanted to help me with my issue; I am confident he will help me to live a better quality of life
Reviewed on Feb 10, 2022
Dr. M. Rizk is the best doctor in the world. I am grateful for his help. The best, period.
Reviewed on Nov 30, 2021
Dr Risk was very kind and I appreciate that, as it was my first colonoscopy experience.
© 2022 The Cleveland Clinic Foundation. All Rights Reserved. No part of this work may be altered, reproduced, stored in a retrieval system, or transmitted, in any form, by any means, whether electronic, mechanical, by photocopying, recording, or otherwise, without the prior written permission of the Cleveland Clinic.