Q. Does Halacha permit a doctor called by one of his patients in the middle of the night for an emergency, to respond to the patient that he should call Hatzalah or 911?
A. Horav Shlomo Miller’s Shlit’a opinion is that he may, if it will take him longer to get ready and reach the needed location than it would take Hatzoloh or an ambulance. Very likely he may also not be as well prepared, have with him the necessary medical equipment or the added medical help that could save the life of the patient.
Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit’a