Create new User, Immediately return UID

I am using the following method to create a new user

Membership.CreateUser(txtEmail.Text, txtPwdA.Text, txtEmail.Text) 

I am wondering if there is some ASP.NET method that will help me immediately return the new UID without another round trip to the server.  I am creating a separate table that will store the users details like (anniversary, birthdate, address, etc) and I want to use a 1-1 relationship in the DB for the aspnetUser and the UserDetails

Thanks in advance.
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