What is the difference between Medigap and complementary crossover insurers?
The complementary crossover process is totally automatic and does not require or permit any clerical intervention. The automated crossover system is not the same as the Medigap program in that, with the Medigap program, participating providers must manually enter the policyholder, policy number and policy name on the assigned claim. The Medigap fields can be found on the HCFA 1500 form in Items 9 a-d or in the equivalent electronic fields.