GREENWICH, Conn. -- Greenwich Hospital has announced the appointment of four new Westchester-based physicians to its active medical staff in the department of obstetrics/gynecology. In 2013, more than 2,200 babies were delivered at Greenwich Hospital.  With the addition of Drs. Robert Armbruster, Paula Brignoni Blume, Jordan Hirsch and Joshua Waldman, whose WESTMED practice is located ...