Log In Enter Reference Number: First 3 Letters of Last Name: Please refer to your patient statement or other correspondence for the secure Reference Number.Please call toll free (844) 853-1033 or (580) 379-5073 for assistance. Welcome! HealthPayNow is an online portal where patients can: View their account information. Make payments on an account. Set up a payment plan, when applicable. Inquire about accounts and balances. Please log in below to access the patient portal.