Pay as Guest. Pay a bill on behalf of a patient at Rady Children's Hospital. Price Estimator Tool. Estimate price. Want to know how much you may pay for a service before speaking to someone? Please use our estimates tool to determine a potential range of prices you may be charged for a specific service. If there are advanced questions or you would like to speak to someone, Please call 858-576 ...Login Page‧Signup Page‧MyChart‧Sign Up Now‧Password Reset Page‧Forgot Username.