Gastroenterology Associates was established in 1974 by Dr. Roger A. Davis, M.D.  In 1981 Dr. Arnold B. Merin, M.D. joined the practice. After 39 years in practice, Dr. Roger Davis retired as of July 1, 2013. Dr. Arnold Merin has taken over the care of Dr. Davis’ patients..Dr. Merin is a board certified physician, who has made the commitment to provide quality care for those patients with diseases involving the digestive tract. This includes those patients afflicted with: swallowing disorders, acid reflux disease, hiatal hernia, gastritis, stomach ulcers, bowel disorders, colitis, Crohn’s disease, pancreatic and liver diseases, irritable bowel syndrome, as well as nutritional and malabsorption problems.

           Our practice provides comprehensive diagnostic services, including: Upper and lower endoscopies( Esophago-gastro Duodenoscopy and Colonoscopy), Esophageal dilation(stretching a narrowed swallowing tube), placement of a stomach feeding tube(Percutaneous Gastrostomy), ERCP(evaluation and treatment of the bile and pancreatic ducts), and Flexible Sigmoidoscopy.

           Our diagnostic procedures are performed in the Outpatient setting of the Endoscopy Suites at Tucson Surgery Center, St. Mary’s Medical Center, or the Northwest Medical Center-located at Orange Grove and La Cholla. We perform Flexible Sigmoidoscopy at our main office located on Tucson Boulevard.

                                             WE PERFORM COLON CANCER SCREENING COLONOSCOPIES.

                

                                                  CALL FOR AN APPOINTMENT: 520-795-4155

OFFICE HOURS:

        Main Office: 1601 N.Tucson Boulevard, #14:  Monday-Friday 0900 am-noon, and 1:30 pm -5:00 pm

        Northwest Office- 1980 West Hospital Drive, #210:  Tuesday and Thursday 1:30 pm-5:00 pm

        Green Valley Office: Carondelet Medical Mall- 400 W. Camino Casa Verde:  Wednesdays 1:00pm-4:00pm

CALL FOR AN APPOINTMENT: 520-795-4155