An EPO, or Exclusive Provider Organization, covers care only through its designated network of doctors, hospitals and specialists. Out-of-network care isn't covered. EPO plans cover emergency stabilizing treatment at any facility regardless of network status. No referral is required for in-network specialist visits.
EPO networks are broader than HMO networks but narrower than PPO networks. Kaiser Permanente is the top-rated EPO insurer in MoneyGeek's 2026 analysis of the best health insurance companies, with a denial rate of 8.1% for EPO plans, the lowest among major insurers reviewed.






