Patient Finds Answers Through Timely GI Evaluation at ASC
Discover how one patient found answers for chronic digestive issues at an ambulatory surgery center (ASC).
Glendora’s Best GI Doctors
Our gastroenterologists and staff at Glendora Digestive Disease Institute are dedicated to providing quality, affordable care to the community in our quest to lower colon cancer rates and treat an array of digestive diseases, including Crohn’s Disease, irritable bowel syndrome (IBS) and gastroesophageal reflux disease (GERD).
We believe in compassionate medicine, where patients feel reassured and unrushed. We hold ourselves to the highest of standards, as our center is accredited by the Accreditation Association for Ambulatory Health Care (AAAHC).
Our board-certified GI doctors specialize in a myriad of GI procedures, including colonoscopy, flexible sigmoidoscopy and upper endoscopy.
If you are due for a colonoscopy or in need of a GI procedure, don’t put it off any longer. Give us a call today!
For Your Visit
Glendora Digestive Disease Institute is committed to ensuring that your experience with us is relaxed and worry-free, from consultation through recovery. To assist us, we ask that you read and comply with all guidelines.
We’re pleased to partner with StopColonCancerNow to help boost colon cancer screenings and prevention for residents in Los Angeles County.
Patient Forms
At Glendora Digestive Disease Institute, your time is as valuable to us as it is to you. That’s why we provide online access to a variety of forms that patients may complete before their visit. The following documents will help us expedite the check-in process for your appointment. Please take a moment to download and print the appropriate form(s).
Insurance and Billing
Glendora Digestive Disease Institute accepts most major insurance. We will bill your insurance carrier for you; however, we cannot tell you what your policy will cover. Since your insurance policy and coverage are between you and your carrier, we urge you to contact them prior to your procedure. You will be responsible for any co-pays and deductibles.
1,375 Reviews
Mar 4, 2026
Mar 4, 2026
Overcharged, paid $907.00 at the time of the procedure to find out later after my insurance company sent me an EOB (explanation of benefits) that I should have only paid $352.00. Reached out to them repeatedly leaving 2 voicemails and no one has returned my calls nor my money. If you go there, do not pay up front, have them bill you and then pay only what your insurance did not. Everything else and everyone else were fine.
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Nurses that work in Glendora Digestive Disease Institute are very nice and friendly. The place is very clean. After the procedure, they give you time to recover and the doctor will see and talk to you for the results of the procedure. They help you out until you are ready to be discharged. They make sure you’re ok to go and someone will assist you out in a wheelchair to the parking lot where your being pickup by your driver.