Dr. Michael Quon, MD
New Patients

Dr. Michael Quon, MD


Gastroenterology | Male


Dr. Michael Quon, MD is a gastroenterology doctor who practices in Valencia, CA. He is 57 years old and has been practicing for 31 years. Dr. Quon is affiliated with Henry Mayo Newhall Memorial Hospital.

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Dr. Quon's Experience

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    Visiting Dr. Quon

    Dr. Quon accepts 16 insurance carriers

    Affiliated Hospitals

    Hospital Quality
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    Dr. Quon's Reviews

    Likelihood of recommending Dr. Quon to family and friends
    based on 35 total surveys (9 with reviews)
    Dr. Quon's Performance
    • Trustworthiness
    • Explains condition(s) well
    • Answers Questions
    • Time well spent
    Office & Staff Performance
    • Scheduling
    • Office environment
    • Staff friendliness
    • Average wait time
      10 to 15 minutes
    Patient Reviews (9)
    in Santa Clarita, CA |
    Dr. Michael Quon deserves 10 stars! He has been my doctor since 2000 when he diagnosed my rare form of liver disease. Thanks to his expert care, I have lived to see -- and to hold -- my three grandchildren. Michael Quon is not only a great doctor, he is a great person. His patients are more to him than just numbers on charts. He was meant to be a doctor, and I couldn't possibly give Michael Quon a higher recommendation!
    Valencia, CA |
    dr quon is very nice, takes his time with every single patient. definitely one of the best GI doctor!
    Valencia, CA |
    I have been a patient of Dr. Michael G. Quon for a number of years and have always found him to be excellent. Dr. Quon is a kind and dedicated professional at all times. He's thorough, diligent and listens to his patients. I heartily recommend Dr. Michael G. Quon.
    Valencia, CA |
    I have been a patient of Dr. Quon's for the past 20 years. He is always caring, compassionate, and attentive. My conditions are somewhat complicated, and the fact that he is now part of UCLA Health has given me even greater options for treatment and care, and I couldn't ask for anything better!
    in Newhall, CA |
    I would highly recommend Dr. Quon to my friends and family as an experienced Gastroenterologist. He has great knowledge of his specialty and has a wonderful bedside manner. He's extremely down to earth, personable, and listened to all my concerns and questions I had before my procedure. I felt comfortable and his office staff is very competent and accommodating.
    in Santa Clarita CA |
    This doctor is truly an outstanding professional with knowledge and experience coupled with a sincere caring for his patients. He sets the gold standard for his specialty. I trust his skills without any hesitation
    in Valencia, CA |
    I had colonoscopy with Dr. Quonset and had an excellent experience. His staff is top notch and made my comfort my top priority. The procedure was pain free and thorough. After the procedure Dr Quon immediately went over the results with me after my brief recovery. I would recommend Dr Quon if you are in need of a colonoscopy.
    in Valencia, CA |
    He misdiagnosed my stage 3 b cancer when it was a stage 2 I am lucky that I found a doctor six months later who thru a second colonoscopy found a 4 centimeter tumor. I had to endure 2 major surgeries because of his misdiagnosis.
    This is not a legitimate review. I took care of Michele Smith in April 2002 (14 years ago) and I did a colonoscopy on her on 4/17/2002 for rectal bleeding. She was found to have hemorrhoids and biopsies of her rectum did not show any rectal cancer. I went to trial in the Superior Court of California in the County of Los Angeles, case number PCO32896 and was found by a court of 12 jurors not be negligent in the medical diagnosis, care and treatment of plaintiff, Michele Smith.
    in Agua Dulce, CA |
    I have been a patient of Dr. Quon for close to 15 years. And while his office has always been terribly disorganized causing wait times of 1-2 hours regularly, his move to UCLA has only made the bad worse. It takes anywhere for 5-10 minutes on hold to talk to an actual person. I have been trying to get a simple prescription refill for over a week. Called 3x. I finally went to my GP Dr. to get a short term supply until I can get to a new interal med doctor. STAY AWAY from this guy !
    Have you seen Dr. Michael Quon, MD?

    Dr. Quon's experience matches your search based on the following criteria:

    •  Based on total number of patients treated over the last 12 months
    •  Specializes in Gastroenterology
    •  Board certified in Gastroenterology and Internal Medicine
    •  No malpractice claims found
    •  No sanctions found
    •  No board actions found

    Awards & Recognition

    • Awards & Honors
      • Healthgrades Honor Roll
      What is a recognized doctor
    • Media & Publications

      Dr. Quon has no media or publications listed.

    Background Check

    • 0
      Malpractice Claims

      No malpractice history found for California.

      What is medical malpractice
    • 0

      No sanctions history found for the years that Healthgrades collects data.

      What is a sanction or disciplinary action
    • 0
      Board Actions

      No board actions found for the years that Healthgrades collects data.

      What are board actions

    Board Certifications

    Why It Matters: Dr. Quon's Board Certifications

    Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

    • Gastroenterology
    • Internal Medicine

    Conditions Treated

    • Abdominal Disorders
    • Abdominal Pain
    • Abscess
    • All Types of Food Poisoning
    • Anal or Rectal Pain
    • Anemia
    • Autoimmune Diseases
    • Barrett's Esophagus
    • Benign Neoplasm of the Digestive System
    • Benign Tumor
    • Biliary Atresia
    • Blood Disorders
    • Cancer
    • Celiac Disease
    • Cholecystitis and Gallstones
    • Chronic Constipation
    • Chronic Diarrhea
    • Cirrhosis
    • Colon Cancer
    • Colon Polyp
    • Colorectal Cancer
    • Constipation
    • Crohn's Disease
    • Dehydration
    • Diaphragmatic and-or Hiatal Hernia
    • Diarrhea
    • Diverticular Diseases
    • Diverticulitis, Intestinal
    • Diverticulosis, Intestinal
    • Duodenal Ulcer
    • Duodenitis
    • Dysentery
    • Dysphagia
    • Enteritis
    • Esophageal Achalasia and Cardiospasm
    • Esophageal Cancer
    • Esophageal Diseases
    • Esophageal Diverticulum
    • Esophageal Ulcer
    • Esophageal Varices
    • Esophagitis
    • Food Poisoning
    • Gallstones
    • Gas-Bloat Syndrome
    • Gastric Ulcer
    • Gastritis
    • Gastroesophageal Reflux Disease (GERD)
    • Gastrointestinal Bleeding
    • Gastrointestinal Diseases
    • Gastrointestinal Malabsorption
    • Gastrojejunal Ulcer
    • Gastroparesis
    • Heartburn
    • Hemorrhoids
    • Hepatitis B - Immune Response
    • Hepatitis C
    • Hernia
    • Ileus
    • Indigestion
    • Inflammatory Bowel Disease
    • Intestinal Abscess
    • Intestinal Obstruction
    • Irritable Bowel Syndrome
    • Lactose Intolerance
    • Liver Damage from Alcohol
    • Malnutrition
    • Nausea
    • Neoplasm of Gastrointestinal Tract
    • Non-Alcoholic Fatty Liver Disease
    • Non-Neonatal Jaundice
    • Noninfectious Gastroenteritis and Colitis
    • Pancreatitis
    • Peptic Ulcer
    • Rectal Bleeding
    • Reflux Esophagitis
    • Small Intestine Cancer
    • Stomach Cancer
    • Stomach Diseases
    • Stomach and Small Intestine Cancer
    • Ulcer
    • Ulcerative Colitis
    • Unexplained Weight Loss
    • Vascular Insufficiency of Intestines
    • Viral Hepatitis
    • Vomiting Disorders


    • Medical School
      Keck School Of Medicine Of Usc

      Graduated in 1986

    • Internship Hospital
      La Co Usc Med Center

      Completed in 1987

    • Residency Hospital
      La Co Usc Med Center

      Completed in 1989

    • Fellowship Hospital
      La Co Usc Med Center

      Completed in 1992

    • Undergraduate School
      University Of Southern Calfornia

      Graduated in 1982

    Languages Spoken

    • English
    • Spanish

    Memberships &
    Professional Affiliations

    Dr. Quon does not have any memberships or affiliations listed. If you are Dr. Quon and would like to add memberships or affiliations, please update your free profile.


    • Gastroenterology

    Procedures Performed

    • Bile Duct Procedure
    • Colonoscopy
    • Colonoscopy With Polypectomy
    • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
    • ERCP (Endoscopic Retrograde Cholangiopancreatography)
    • ERCP With Spincterotomy
    • Endoscopy (Esophagus, Stomach, Small Intestine)
    • Gastroenterology Procedures
    • Hemorrhoid Banding
    • Hemorrhoidectomy or Excision of Anal Tags
    • Liver Biopsy
    • Percutaneous Edoscopic Gastrostomy (PEG)
    • Screening Colonoscopy
    • Therapeutic ERCP