Board-certified gastroenterology in North Orange County — now with two convenient offices and a brand-new endoscopy center.
Tap an office to personalize this page — we’ll remember your choice.
Our new state-of-the-art ambulatory endoscopy center at 955 W. Imperial Hwy brings screening colonoscopy, upper endoscopy, and advanced GI procedures to one convenient, comfortable location.
Screening colonoscopy saves lives. Ages 45+ — get scheduled at our Brea endoscopy center.
Fast, painless, in-office CRH O'Regan treatment — no prep, no sedation, back to work same day.
Expert care for reflux, IBS, IBD, liver disease, swallowing disorders, and more.
…plus our physician assistant team: Perez, Tateo, Alonso, Truong, and Kim.
— OC Gastro Care patient
Book Your Appointment