Closest firehouses I could find next to the 25th Precinct are
Engine 35 Ladder 14 Battalion 12 2282 3rd Ave, New York, NY 10035
FDNY Engine 58 Ladder 26 1367 5th Ave, New York, NY 10029
And the closest hospital in that area would be Mount Sinai 1468 Madison Ave, New York, NY 10029
And the closest trauma center would be NYC Health + Hospitals/Harlem, located at 506 Lenox Ave, New York, NY 10037
Fun fact, the 25th Precinct was used as a exterior shot for the 54 Precinct in Blue Bloods where Danny works as a Detective 1st Grade, part of the Major Case Squad.