Go to MyUCSDChart and click on "Sign up now" to set up an account using the activation code from your doctor's office. If you don't have an activation code, call 619-543-5220, from 6 a.m. to 10 p.m. any day of the week. Once you've created an account, you can also use the MyUCSDHealth app to access your MyUCSDChart account via a smartphone or other mobile device..