Urgent Care Bill Pay. If you received care at one of the Indianapolis, Bloomington or Fort Wayne area Urgent Care locations prior to Aug. 1, 2021 and have questions on your bill, call us at 317.554.8767 Monday - Friday, 9 am - 5 pm. You can also mail your payment to the following: IU Health Urgent Care LLC. PO Box 776399. Chicago, IL 60677-6399..