Once you are set up and taking payments through DrChrono Payments, you can designate it as the processor for patients who submit payments via their OnPatient account.
Navigate to Account > Account Settings > Patient Payments > OnPatient tab
Under the OnPatient heading, you can select DrChrono Payments from the payment default dropdown.
Once you have made your selections, click on Update Entire Profile.
Now when your patients submit payments through their OnPatient account, they will process under DrChrono Payments.