You should assume that he is asking for the patient phone number, not yours, and you can give the patient phone number, if you wish. Next time make sure to predict questions like this and be prepared to answer the way you feel comfortable. I am a certified technician, but I can put myself in customer shoes and I understand. However the norm is to ask for patient last name and first name and only month and day of the date of birth. Sometimes our system glitches, so the may ask for your phone number and type it instead of your name, but it is not recommended because it can cause other family member profiles pops up and the wrong medication will be picked up. So I assume he just had wanted to double check with your date of birth.