Who called from 6468882001

Just heard music

rec;d call from this number on 9/19 - caller ID read MSK -415 East 646-888-2001.  When I called bck it was a non working number at Memorial Sloane Kettering

This is legitimate; it is Memorial Sloan Kettering Hospital in New York City.

Legit call from Memorial Sloan.  Confirming my appointment to donate blood.

This is an incoming call from MSK. You cannot use to call MSK back.  If the caller does not leave a message, then you will not know who the caller is. In that case contact your primary MSK doctor.