| Type of Plan |
Definition |
| Staff-Model HMO |
A plan that directly hires its physicians |
| Group-Model HMO |
A plan that contracts with a single physician group, usually on an
exclusive basis |
| Network-Model HMO |
A plan that contracts with several physician groups, usually on a nonexclusive
basis |
| Independent Practice Association (IPA) HMO |
A plan that contracts with individual physicians or physician groups,
usually on a nonexclusive basis |
| Preferred Provider Organization (PPO) |
A plan that contracts with individual physicians for fee discounts,
but which is usually not at risk |
| Exclusive Provider Organization (EPO) |
A type of PPO in which enrollees are only covered for services of network
providers |
| Managed Indemnity Plan |
A plan that imposes some type of utilization review on the care delivered
by any provider. Providers do not have contracts with the plan |
| Point-of-Service (POS) Plan |
A managed-care product, sometimes called an open-ended HMO, in which
the enrollee has the option of obtaining care from a nonnetwork provider
at a higher out-of-pocket cost. |