Who called from 7813311646

It be south shore mon.  I be down in Jamaica mon an dey call me a da time mon.

Mass law:
Debt collectors may not:
Call you at times other than your normal waking hours. If your waking hours are unknown, then the collector may only call between 8:00 a.m. and 9:00 p.m.

They can't call you at 11:40 pm

It's South Shore Hospital's outgoing line. They could be calling to confirm an appointment or collect a payment.