For the benefit of its patients, AthenaHealth patient portal developed an online service or portal. Known as Payment.athenahealth.com, this fantastic site is available to all patients. The patient may use this QuickPay Portal to pay their medical bills online and skip the huge lineups outside the payment office. Simply log in to the payment.athenahealth.com site, input your information, and pay the charge. You may follow the instructions in this article to browse the website.