Medicare Beneficiary Access Protection Act of 1986 - Directs the Secretary of Health and Human Services, in determining whether payments to a home health agency should be denied under title XVIII (Medicare) of the Social Security Act, to apply a presumption of compliance until 12 months after certain regional intermediaries have begun to service such agencies. Requires the Secretary to apply a similar presumption of compliance to skilled nursing facilities for 30 months following enactment of this Act.