Long Beach Gastroenterology

3833 Worsham Avenue, Suite 300
Long Beach, California 90808
Phone:  (562) 595-5421
Fax:  (562) 426-2882

Services & Education

Our Services                                                      Dr. Zamost performs a colonoscopy

Long Beach/Los Alamitos Gastroenterology Associates is the largest and most experienced privately owned group of gastrointestinal specialists in the Long Beach/Orange County area. All of our providers are Board-Certified Gastroenterologists and they diagnose, manage and treat the full array of problems that may arise in the digestive tract and liver.

In addition to our expertise in consultative services, our providers are also very experienced in gastrointestinal endoscopy. "Endoscopy" is the general term for looking inside the body with a lighted tube. These procedures permit detailed investigations of nearly all areas of the gastrointestinal tract.

Colonoscopy:  Accesses the lower intestine (also known as the large intestine or colon) and is the procedure often performed in the screening for colon polyps and cancer

Upper Endoscopy:  Allows the visualization of the esophagus, stomach, and upper part of the small intestine

ERCP:  A specialized procedure that investigates the main ducts (tubes) of the pancreas, liver and gall- bladder

Capsule Endoscopy: Involves the capture and interpretation of images as a "pill" camera travels through the small intestine

Hemorrhoid Banding: This highly effective (99.1%), minimally invasive procedure is performed in our offices in less than a minute. We make recommendations to reduce the chance of recurrence later (currently 5% in 2 years). If there are multiple hemorrhoids, we treat them one at a time in separate visits. Our office uses the CRH O’Regan System: CRH uses a disposable ligator to create a soft, gentle suction that pulls the appropriate tissue into it. Then, the rubber band can easily and painlessly be placed around the base of the hemorrhoid, where no pain-causing nerve endings are present.


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