Patients covered by Blue Cross Blue Shield of Texas Medicare Advantage and Medicaid insurance plans will lose in-network access to MD Anderson Cancer Center next week, according to a statement on the cancer hospital's website. By Nov. 1, the hospital's agreement with the insurer's Medicare Advantage and Medicaid plans will expire, meaning patients on those plans will no longer be charged heavily discounted rates for care. Medicare Advantage plans are offered by private insurance companies and, like original Medicare, cover people over the age of 65 or people with certain disabilities.