Gerard B Chamberlin has 6 locations. Arizona Institute Of Medicine & Pediatrics 6828 E Brown Rd Ste 102 Mesa, AZ 85207. (480) 981-8650. ACCEPTING NEW PATIENTS. Gerard B Chamberlin MD MPH PC 6242 E Arbor Ave Ste 123 Mesa, AZ 85206. (480) 930-4600. Banner Health 6242 E Arbor Ave Ste 123 Mesa, AZ 85206. Arizona Institute Of Medicine Peds 6828 E ....