• What Is Capsule Endoscopy?
    A capsule endoscopy is a procedure allowing gastroenterologists to view and examine the interior middle portion of the gastrointestinal tract. This area of the gastrointestinal tract includes three sections of Read more
  • What Services Your Gastroenerologist Provides
    Stomach issues can prove to quickly affect your quality of life and cause more trouble than one would think. However, your gastroenterologist can help you find answers to your stomach Read more
  • 5 Digestive Diseases You Should Be Aware Of
    Tummy troubles? Digestive diseases significantly affect millions of individuals worldwide. There’s no need to suffer in silence. If you suspect you could have one of the following digestive diseases, don't Read more
  • Reasons You May Need an Endoscopy
    Having GI distress? Then find out if an endoscopy could give you the answers to your stomach issues. There are many symptoms that may warrant a trip to see our Newport Read more
  • Signs You May Have Crohn's Disease
    Crohn's disease is an inflammatory bowel disease that causes pain, severe diarrhea, and other serious symptoms. Glenn D. Madokoro, M.D., your Newport Beach, CA gastroenterologist, shares some signs that may Read more
  • Signs You May Need A Colonoscopy
    A colonoscopy might not be on the top of your priority list. However, this procedure is an incredibly important tool for preventing and diagnosing colon cancer, which affects about 150,000 Read more
  • Colorectal Cancer Prevention Doesn't Have to be Uncomfortable
    Find out more about colorectal cancer screenings and who should get them. Are you turning 50 years old this year? If so, it might be time to give yourself the gift Read more
  • FAQs About An Endoscopy
    If you live in the Newport Beach, CA area, and you have been told you need an endoscopy, chances are you have questions and concerns. A qualified gastroenterologist, like Dr. Glenn Read more
  • What Happens During a Colonoscopy?
    A colonoscopy is a test used to examine your large intestine for signs of cancer and find the cause of other problems, such as abdominal pain. Initial colonoscopies are recommended Read more
  • FAQs About Polyps
    Polyps are a small cluster of cells that grow on the lining of the colon. Most polyps tend to be harmless, and generally don’t cause noticeable symptoms. However, some polyps Read more
  • Why Might I Need a Colonoscopy?
    Has your Newport Beach, CA doctor, Glenn D. Madokoro, MD, talked to you about having a colonoscopy yet? A common medical procedure, colonoscopies are used to screen for signs of Read more
  • Brock Lesnar Knows the Dangers of Diverticulitis
    Diverticulitis is an unfortunately common and painful disease of the digestive system. It occurs when pouches formed in the intestines and colon become inflamed. Symptoms include abdominal pain, diarrhea, Read more
  • Polyps - What They Are, How To Identify Them
    Hearing your doctor say that you have polyps can be very frightening. What are polyps? Are polyps dangerous? Thankfully, the diagnosis is generally nowhere near as bad as it sounds. Read more
  • Adenoma Detection Rate and the GiQuic Program
    Your Newport Beach gastroenterologist participates in an endoscopic quality improvement registry to promote more effective medical procedures. According to the CDC, colorectal cancer is the third most common cancer in both Read more
  • When Should You Schedule Your Endoscopy?
    Anyone with persistent digestive issues should consult a gastroenterologist, a doctor specializing in the digestive system, to address discomfort and diagnose any infections or diseases that may be causing health Read more
  • Understanding Colonoscopy in Newport Beach
    While a colonoscopy probably isn’t at the top of your list of things to do, it is one of the most important routine medical procedures you can have performed. According Read more

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Our Location

July 1, 2022-we have moved to 2901 W Cst Hwy ste 200, Newp Bch

Office Hours


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8:30 am-3:00 pm


8:30 am-12:00 pm


8:30 am-12:00 pm


8:30 am-12:00 pm