The GI, or digestive, tract extends from mouth to anus (see the image below). The division of the GI tract into upper and lower is a matter of some confusion and debate.
Dental PPO insurance plans, also known as dental preferred provider organizations or DPPOs, are a popular dental insurance option due to their flexibility in allowing insured members to choose dentists and dental specialists.
What is a PPO Plan? The acronym âPPOâ means âPreferred Provider Organization.â A Medicare Advantage Preferred Provider Organization* is a type of Medicare Advantage plan that is offered to beneficiaries through a private insurance company.