DefinityHSA.com stands for Definity Heath Savings Accounts. The mission of this organization is to help you save and pay for qualified medical expenses for use today and in the future. Together with United Healthcare affiliate, Optum Health Bank, an FDIC-insured economic foundation focused exclusively on health care banking, they claim to be the most experience in the industry and have developed into a leading provider and administrator of Health Savings Accounts (HSAs). At DefinityHSA.com you will find this and much more information about home banking and the other services the company has to offer. On the top-right side of the home page you will find the online banking section; there you will be able to manage your existing HSA Account or enroll in an HAS. On the top side of the home page you will find the forms you need to fill out in order to become a member and more info about the Definity HSA affiliates. Check out DefinityHSA.com for more info.