• What is a Colon Polyp?
    Concerned about colon polyps? Here’s what you need to know. Maybe you just heard from a friend that they detected colon polyps during their last colonoscopy. Now you’re wondering if Read more
  • FAQs About Endoscopies
    Your physician wants you to have an endoscopy procedure, and you have questions. At Dr. Glenn Madokoro's gastroenterology office in Newport Beach, CA, endoscopy is one of his most reliable--and Read more
  • The Difference Between Endoscopy vs. Colonoscopy
    The Difference Between Endoscopy vs. Colonoscopy Both colonoscopy and endoscopy are non-surgical procedures performed by a gastroenterologist. They also both use a device known as an endoscope, which has a fine, Read more
  • Reasons to Receive an Endoscopy
    An endoscopy is a simple nonsurgical procedure commonly utilized for inspecting the digestive tract. It entails the use of an endoscope, which is a malleable, thin tube with a tiny Read more
  • When Should You Get a Colonoscopy?
    In 2019, about 145,600 men and women in the U.S. received a colorectal cancer diagnosis. Although the condition mainly affects older adults, there's a rising incidence in younger individuals. When Read more
  • What You Should Know About Endoscopies
    How an endoscopy from your gastroenterologist in Newport Beach, CA, can protect your health An endoscopy is a simple procedure that can very effectively protect your health. When you undergo an Read more
  • The Basics on Polyps
    Polyps are small tissue growths that usually appear in the lining of the colon (large intestine), but can also develop in other parts of the body, as well. While polyps Read more
  • FAQs about Colonoscopies
    You've probably seen the television ads for colon screening. Maybe you've talked to friends about colonoscopies. If getting a colonoscopy is something you are considering, you probably have questions. Dr. Read more
  • Do You Need an Endoscopy?
    An endoscopy is a diagnostic test that allows your doctor to check for problems like inflammation, bleeding, lesions, and growths in the digestive system. Millions of Americans suffer from acid Read more
  • What Is A Colonoscopy?
    A colonoscopy screens patients for colon cancer. Recommended for people ages 50 and older, this minimally-invasive test looks for irregularities in the bowels, takes samples for biopsies, and uncovers the Read more
  • How Common Are Colon Polyps?
    How your gastroenterologist in Newport Beach, CA, can help with colon issues Many people would rather not talk about colon issues, but it is an important topic. One of the more Read more
  • Signs You Need an Endoscopy
    How an Endoscopy from Your Gastroenterologist in Newport Beach, California Can Help You An endoscopy is a procedure used to diagnose issues occurring in your upper digestive system including your esophagus, Read more
  • How Often Should I Have a Colonoscopy?
    Colon cancer threatens 150,000 Americans annually, says the American Cancer Society. In Newport Beach, CA, your gastroenterologist, Dr. Glenn Madokoro, recommends routine cancer screening by colonoscopy, emphasizing early detection and Read more
  • What You Should Know About Polyps
    Polyps are non-cancerous (benign) growths usually found in the lining of the colon. Although they are typically harmless and do not always cause symptoms, colon polyps can sometimes become cancerous, Read more
  • Reasons to See Your Gastroenterologist
    Many different conditions can affect the stomach, esophagus, intestines, or colon. Gastroenterologists diagnose and treat these conditions. There are several reasons to see a gastroenterologist, particularly if you experience pain, Read more
  • Why Is a Colonoscopy Recommended?
    Along with aging comes the responsibility to take your health by the horns, seeking out preventative care and ensuring that your body keeps up with your mind. A common and 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


8:30 am-12:30 pm


8:30 am-3:00 pm




8:30 am-12:00 pm


8:30 am-12:00 pm