I should correct my earlier post. It's not an 800 number that is on my MedicAlert bracelet. It's a "call collect" number, and presumably the caller's number and location would come up on MedicAlert's caller ID system.

When I first got the bracelet, this notice came along with it: "Medic Alert Foundation's emergency telephone number 209-634-4917 has been engraved on your emblem. Records are filed by serial number. Collect phone calls will be accepted from qualified persons in an emergency."

They check to see if the person calling is "qualified."

My son's name and phone number are also on my record.