To find your doctor, please use the search options below: Search Again Search Results - Last Name Begins With: O 5 Physician(s) displayed. Antonio K Ong M.D. 3505 Hart Ave. Rosemead, CA 91770 (626) 573-1160 General Surgery View Profile Rio Ong M.D. (626) 570-5762 Emergency Medicine View Profile Robert A. Ong N.P. (909) 629-8088 Obstetrics/Gynecology View Profile William Origel M.D. 2603 Via Campo Montebello, CA 90640 (323) 720-5505 Obstetrics/Gynecology View Profile Edgardo Ortiz-Flores M.D. (562) 869-1201 Internal Medicine View Profile 5 Physician(s) displayed.