This has to do with the specific type of exercise builder subscription your provider has chosen. Providers who use MedBridge can choose different types of subscriptions, some that require a username and password, some that just require an access code.
If you do not have the option to log in with a username and password, you'll need to enter your access code to access your home exercise program. Your provider can share that access code with you via text message, email, or a print out.
Once you have your access code, head to www.medbridgego.com and enter the access code provided. When you log in using your access code, you will be taken directly to your program.