To enable bill payments through the onpatient portal, a patient must add a credit/debit card to their onpatient account. To do this, your patient needs to access their billing functions in onpatient. From any page in onpatient, the Billing tab will be in the onpatient navigation bar.
From your dashboard, you may also access the billing page through the 'Billing' link in Statements.
When your patient is at the Billing page, they can select 'Payment Methods' to view their saved cards or add a new card.
In the 'Payment Methods' tab, have your patient enter in their credit/debit card information and select 'Save'. Your patient's card will then appear in the 'Saved Cards' list.