Can I change the email address or mobile number when sending the eRx token for a patient? Yes, you can free type in the fields for the mobile phone number or email address from the "Confirm Patient Contact" pop-up. The patient pop-up will appear once e-Prescribe or e-Prescribe and Print is selected. Related articles I am receiving the following error "HPI-O No: must be supplied" Can I include more than one Medication on an e-Prescription? What Do I Do If I Forget my Login Details? How do I list a prescription as a past medication? How Do I Configure Bulk Billing Incentives?