Where is mount sinai hospital located? Mount Sinai Medical Center. Mount Sinai Hospital is a 319-bed major urban hospital in Chicago, Illinois, with its main campus located adjacent to Douglas Park at 15th Street and California Avenue on the city's West Side.Where is mount sinai hospital in los angeles? Mount Sinai Hospital is a cultural feature (hospital) in Los Angeles County. The primary coordinates for Mount Sinai Hospital places it within the CA 90063 ZIP Code delivery area.What is the address of mount sinai hospital? The mailing address for Mount Sinai Hospital Medical Center is 2750 W 15th Pl, , Chicago, Illinois - 60608-1704 (mailing address contact number - 773-542-2000). Provider Profile Details: NPI Number Details: