Understanding your health insurance plan
Your plan type can affect where you can go, who you can see, what needs approval, and what you may pay.
Knowing your plan type is one of the first steps toward understanding your coverage.
Find my plan type ↓Why your plan type matters
Two people can both "have insurance" and still follow very different rules for the same situation.
Choosing providers
Some plans limit you to a specific network; others let you go further.
Seeing specialists
Some plans require a referral from your primary care provider first.
Getting referrals
Whether you need one — and from whom — depends on your plan type.
Out-of-network care
Some plans help pay for it; others generally don't, outside emergencies.
Prior authorization
Some services need approval before you get care, regardless of plan type.
Paying for services
Your plan type shapes the rules — but not the exact dollar amount.
HMO, PPO, EPO, and POS — compared
These are the most common U.S. private plan structures. Availability, rules, and exact names vary by insurer and plan — always confirm with your specific plan documents.
HMO
Health Maintenance Organization- Network
- Generally limited to plan's network
- Primary care provider
- Typically required
- Referrals
- Often required for specialists
- Out-of-network
- Often not covered, except emergencies
- Best for
- Those who want lower costs and don't mind a managed structure
PPO
Preferred Provider Organization- Network
- Broader network, more flexibility
- Primary care provider
- Generally not required
- Referrals
- Generally not required
- Out-of-network
- Often partially covered, usually at higher cost
- Best for
- Those who want more provider choice and flexibility
EPO
Exclusive Provider Organization- Network
- Limited to plan's network, like an HMO
- Primary care provider
- Often not required
- Referrals
- Often not required
- Out-of-network
- Typically not covered, except emergencies
- Best for
- Those who want no-referral access, within a set network
POS
Point of Service- Network
- Network-based, with some out-of-network option
- Primary care provider
- Typically required
- Referrals
- Often required for specialists
- Out-of-network
- Often partially covered, usually at higher cost
- Best for
- Those who want a managed structure with some flexibility
Quick comparison
| Feature | HMO | PPO | EPO | POS |
|---|---|---|---|---|
| Primary care provider | Typically required | Generally not required | Often not required | Typically required |
| Referrals | Often required | Generally not required | Often not required | Often required |
| In-network care | Core focus | Preferred, lower cost | Core focus | Preferred, lower cost |
| Out-of-network care | Often not covered | Often partially covered | Typically not covered | Often partially covered |
| Provider choice | Narrower | Broadest | Narrower | Moderate |
| Typical trade-off | Lower cost, less flexibility | More flexibility, often higher cost | No referrals, but fixed network | Some flexibility, more rules |
HMO
PPO
EPO
POS
The most important idea on this page
Your plan type is only the beginning.
Knowing you have an HMO, PPO, EPO, or POS doesn't tell you whether a specific service is covered or exactly what you'll pay. You still need to check:
- Your specific plan
- Provider network status
- Covered services
- Deductible, copay, and coinsurance
- Prior authorization requirements
- Applicable limitations
Where can I find my plan type?
It may appear as "HMO," "PPO," "EPO," "POS" — or be described differently. Don't guess.
Don't guess
Your plan's network and coverage rules matter more than the label alone. If your card doesn't clearly identify the plan type, confirm it with your insurer.
Before you schedule care, check
- What type of plan do I have?
- Is the provider in-network?
- Is the facility in-network?
- Is the service covered?
- Do I need a referral?
- Do I need prior authorization?
- What deductible/cost-sharing applies?
- Does my plan have special rules for this service?
Common plan-related problems
"I don't know what plan I have."
See where to check ↑"I don't know whether my doctor is in-network."
"I don't know whether my service is covered."
"My plan says I need prior authorization."
"I was told I need a referral."
"I received care and insurance didn't pay."
Understand what happened →In Canada? "Plan type" works differently — see below.
Jump to the Canadian guide ↓You probably don't have a "plan type" the way the U.S. does
HMO/PPO/EPO/POS are U.S. private-insurance concepts. In Canada, the more useful question is: do I have public provincial/territorial coverage, private/workplace supplemental coverage, or both?
| Type of care | What generally applies |
|---|---|
| Doctor and hospital services | Generally covered through provincial or territorial public health insurance when you're eligible. |
| Prescription drugs, dental, vision, and paramedical services (physio, massage, etc.) | Coverage varies. Some services may be publicly covered in specific circumstances, while others may be covered through private, workplace, or other supplemental plans. |
This varies by province, territory, and your specific private plan — treat this as a general starting point, not a guarantee.
Canada-specific next steps
The Patient Insider's library is currently U.S.-focused. Canadian-specific guides are being planned.
"I don't know what my provincial plan covers."
"I don't know what my workplace plan covers."
"I need to find a covered provider."
What are you trying to do?
Find an in-network provider
Check whether a service is covered
Get prior authorization
Ask about a claim
Read the guide →Understand a bill
Read the guide →Resolve an insurance problem
Browse the Hub →Common questions about plan types
What is the difference between an HMO and a PPO?
An HMO generally requires a primary care provider and referrals, with a narrower network. A PPO generally offers a broader network with more flexibility, often at a higher cost.
What is an EPO?
An Exclusive Provider Organization typically requires you to stay in-network, like an HMO, but often doesn't require referrals — check your specific plan.
What is a POS plan?
A Point of Service plan generally combines HMO-style rules (primary care provider, referrals) with some ability to go out-of-network, usually at a higher cost.
Do I need a referral to see a specialist?
Depends on your plan type and specific plan — HMOs and POS plans often require one; PPOs and EPOs often don't. Confirm with your plan documents.
Can I see an out-of-network provider?
Sometimes — it depends heavily on your plan type and specific plan. Some plans partially cover it at higher cost; others generally don't outside emergencies.
Does having a PPO mean everything is covered?
No. Plan type affects network and referral rules — it doesn't guarantee a specific service is covered or tell you what you'll pay.
How do I find out what plan I have?
Check your insurance card, member portal, Summary of Benefits and Coverage, plan documents, your employer's benefits portal, or call the number on your card.
Can my plan change?
Yes — plans can change at renewal, during open enrollment, or if your employer changes offerings. Confirm your current plan type each year.
What's the difference between my plan and my insurance company?
Your insurance company is the organization; your plan is the specific product you're enrolled in. The same insurer often offers multiple plan types with different rules.
Know your plan. Know your next step.
Understanding your plan is the first step. The Patient Insider helps you figure out what to check, what questions to ask, and what to do next.