What is a “private contract” and what does it mean to a Medicare beneficiary who signs it?

As provided in § 4507 of the Balanced Budget Act of 1997, a “private contract” is a contract between a Medicare beneficiary and a physician or other practitioner who has “opted out” of Medicare for two years for all covered items and services he or she furnishes to Medicare beneficiaries. In a private contract, the Medicare beneficiary agrees to give up Medicare payment for services furnished by the physician or practitioner and to pay the physician or practitioner without regard to any limits that would otherwise apply to what the physician or practitioner could charge.