HMO (Health Maintenance Organization)
An HMO is a managed care health insurance plan that provides comprehensive coverage at the lowest cost, requiring members to select a primary care physician (PCP) who coordinates all care and provides referrals to specialists within the network.
Exam Tip
HMO = lowest cost, requires PCP, requires referrals, in-network only. PPO = highest cost, most flexibility. EPO = hybrid (network-only like HMO, no referrals like PPO).
What is an HMO?
A Health Maintenance Organization (HMO) is a type of managed care plan that provides health insurance coverage through a network of doctors, hospitals, and other healthcare providers. HMOs focus on preventive care and cost containment by requiring members to use in-network providers and obtain referrals for specialist care.
Key Features of HMO Plans
| Feature | Description |
|---|---|
| Primary Care Physician | Must select a PCP who manages all care |
| Referrals Required | Need PCP referral to see specialists |
| Network Restrictions | Must use in-network providers (except emergencies) |
| Lower Premiums | Generally the lowest-cost managed care option |
| Preventive Focus | Emphasizes wellness and prevention |
How HMO Plans Work
| Step | Description |
|---|---|
| 1 | Member selects a primary care physician (PCP) |
| 2 | PCP serves as "gatekeeper" for all medical services |
| 3 | PCP provides referral for specialist visits |
| 4 | Member must use network providers |
| 5 | Out-of-network care NOT covered (except emergencies) |
HMO vs. PPO vs. EPO Comparison
| Feature | HMO | PPO | EPO |
|---|---|---|---|
| PCP Required | Yes | No | No |
| Referrals Needed | Yes | No | No |
| Out-of-Network Coverage | Emergency only | Yes (higher cost) | Emergency only |
| Network Required | Yes | No (but cheaper in-network) | Yes |
| Premiums | Lowest | Highest | Medium |
| Out-of-Pocket Costs | Lowest | Highest | Medium |
| Flexibility | Lowest | Highest | Medium |
PCP as Gatekeeper
| Role | Description |
|---|---|
| Coordinator | Manages all aspects of member's healthcare |
| Referral Authority | Must authorize specialist visits |
| Medical Home | First point of contact for all health concerns |
| Record Keeper | Maintains comprehensive medical history |
Advantages of HMO Plans
| Advantage | Explanation |
|---|---|
| Lower premiums | Least expensive managed care option |
| Lower out-of-pocket | Predictable copays, minimal deductibles |
| Coordinated care | PCP oversees all treatment |
| Preventive coverage | Many wellness services at no cost |
| No claim forms | Paperwork handled by network |
Disadvantages of HMO Plans
| Disadvantage | Explanation |
|---|---|
| Limited choice | Must use network providers |
| Referral requirement | Extra step to see specialists |
| No out-of-network | Only emergencies covered outside network |
| PCP dependency | Must go through PCP for all care |
| Geographic limits | May have issues when traveling |
Common HMO Exceptions (No Referral Needed)
| Service | Reason |
|---|---|
| Emergency care | Always covered, any provider |
| OB/GYN visits | Women's health direct access |
| Routine preventive care | Wellness visits, screenings |
| Mental health | Many plans allow direct access |
Who Should Choose an HMO?
| Good Fit | Poor Fit |
|---|---|
| Budget-conscious individuals | Those wanting provider flexibility |
| Those comfortable with one doctor | Those who see multiple specialists |
| People who want coordinated care | Frequent travelers |
| Those in network service area | Those with complex medical needs |
Exam Alert
HMO = Lowest cost managed care. MUST have PCP (gatekeeper). MUST get referrals for specialists. NO out-of-network coverage except emergencies. Compare: PPO = most flexibility, highest cost; EPO = no referrals but network-only like HMO.
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Related Terms
EPO (Exclusive Provider Organization)
InsuranceAn EPO is a managed care health insurance plan that requires members to use in-network providers for all non-emergency care, but unlike HMOs, does not require a primary care physician referral to see specialists.
Coinsurance (Health Insurance)
InsuranceCoinsurance is a cost-sharing arrangement where the insured pays a percentage of covered medical expenses after the deductible is met, typically 20% with insurance paying 80%.