Print Osama Niazi Cardiovascular Disease DHMG Heart Arrhythmia - Gilbert 3420 S Mercy Rd Ste 300 Gilbert, AZ 85297 Call (480) 728-6420 Additional Locations CRMC Hospital Services 1955 W Frye Rd Chandler, AZ 85224 Call (480) 728-3000 Dignity Health Heart Arrhythmia Center 3200 S Alma School Rd Ste 204 Chandler, AZ 85248 Call (480) 728-5500