What Does POS Stand For In Health Insurance? 
A POS plan is an `` HMO/PPO '' hybrid ; sometimes referred to as an `` open-ended '' HMO when offered by an HMO . POS plans resemble HMOs for in-network services . Services received outside of the network are usually reimbursed in a manner similar to conventional indemnity plans -LRB- e.g. , provider reimbursement based on a fee schedule or usual , customary and reasonable charges -RRB- . 