We keep getting calls from this same number too(as well as 408-538-5140)and the caller ID says "Doctors Network". They usually call twice early in the morning-no message. We get the same caller ID name with a whole different area code and phone numbers at various times during the day. I never pick it up and hope they will quit calling but it is very irritating.
Received a call from 408-538-5141 when no one was home to answer. Caller ID said "DOCTORS NETWORK". They didn't leave a message, so I didn't call back.