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
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Education & Professional Highlights
Education & Fellowships
Graduate - 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 School - 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 11/6/2018, Dr. Rizk 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.
Donation of Financial Interest. Dr. Rizk has consulted for, received compensation for serving as a fiduciary from, or received royalties from the following companies but instructed them to donate all compensation to not-for-profit causes or to the Cleveland Clinic to support research and education:
- AbbVie, Inc.
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.
251 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|
|Knows Medical History||4.5|
|Time Spent with Patient||4.8|
|Patient Rating of Doctor||4.8|
23 Patient Comments
Reviewed on Apr 8, 2019
Dr. Risk is one of the best providers I have encountered. He is so balanced, with all of the traits a patient wants in a doctor. I would and will recommend him to family and friends.
Reviewed on Mar 29, 2019
dr. rizk was so kind to see me on a day that I didn't have a scheduled appointment.
Reviewed on Mar 26, 2019
Dr R. is personable taking time to answer concerns
Reviewed on Mar 26, 2019
Dr. Rizk was very easy to talk to. He listened attenatively to my concerns and actually read my chart before asking questions.
Reviewed on Mar 14, 2019
My doctor was professional, explained the operation and advised me to stay in touch with the clinic afterwards if there were any problems.
Reviewed on Mar 13, 2019
Dr. Rizk was courteous and efficient
Reviewed on Mar 6, 2019
the physician was warm and reassuring. procedure was perfect.
Reviewed on Mar 4, 2019
Dr Rizk and his staff were courteous, professional, and very understanding
Reviewed on Jan 16, 2019
Dr Rizk was friendly and made the process easy to understand.
Reviewed on Dec 19, 2018
Everyone that I encountered from the receptionist to the doctor where incredibly professional and courteous.
Reviewed on Dec 12, 2018
great doctor. I drove 2.50 miles to see Dr Risk. very good comunicator. I would recomend to anyone.
Reviewed on Nov 20, 2018
I was very happy with the doctor, he took the time with me and answered all my questions and was very knowledgeable of my condition
Reviewed on Oct 22, 2018
Could not get a hold of someone on the Saturday before my procedure. The doctor on call neve et called me. Disappointed
Reviewed on Oct 12, 2018
My experience was very good, I really like Dr. M. Rizk; He is very polite and kind and easy to talk to.
Reviewed on Sep 27, 2018
This was a referral from my primary physician. Because I was treated by this provider in the past, I was glad about the referral. I would definitely recommend this provider to others.
Reviewed on Sep 25, 2018
dr. Risk is very caring and patient. I like and trust him.
Reviewed on Sep 17, 2018
Dr. Rizk is excellent. Very attentive, knowledgeable, and friendly.
Reviewed on Sep 13, 2018
Dr. Rizk is an Excellent Doctor. I would recommend him to anyone.
Reviewed on Jun 28, 2018
I felt comfortable in the office. The doctor and MA were friendly and easy to talk to.
Reviewed on Jun 25, 2018
I drive from Westlake to Independence, as I like and respect Dr. Rizk and not willing to change to an endrocolonist in Avon, Oh which is very close to me.
Reviewed on Jun 5, 2018
Dr Rizk is fantastic. His staff has always been attentive and courteous
Reviewed on May 29, 2018
Dr. answered all my questions.. Very knowledgeable and friendly. Easy to talk to. I would highly recommend him.
Reviewed on May 22, 2018
the doctor was really nice & very helpful! the treatment plan is working and I'm feeling better
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