What is the deffernece between hmo and epo?

HMO (Health Maintenance Organization) and EPO (Exclusive Provider Organization) are both types of managed care health insurance plans, but they differ in provider access. HMO plans require members to choose a primary care physician (PCP) and obtain referrals for specialist care, while EPO plans do not require referrals and allow members to see any specialist within the network directly. Additionally, HMO plans typically have lower premiums and out-of-pocket costs, but they offer less flexibility in provider choice compared to EPO plans, which often have a broader network but may not cover any out-of-network care except in emergencies.