9 Find out more about your reimbursement benefit. Access your account by going to tiaa.org and logging in. Utilize the mobile apps to log into your account through the TIAA or Optum Financial app. Call 877-554-1004, Monday–Friday, 8 a.m.–10 p.m. (ET). General FAQs (cont.) Are reimbursement payments sent via a check or directly deposited into my bank account? Reimbursement payments are mailed to your address on record unless you have requested that they be deposited directly into your checking or savings account. Direct deposit can be set up through Optum Financial’s website and mobile app. Payment can only be mailed to a U.S. address or directly deposited into a U.S. bank account. What if I incur a medical expense outside of the United States? Claims for medical expenses incurred outside of the United States are eligible for reimbursement provided that they are translated to English prior to submission and are submitted in English. Payment can only be mailed to a U.S. address or directly deposited into a U.S. bank account.