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What is a Network in Health Insurance?
What is a Network in Health Insurance?
April 17, 2025 | 6 min read
A network in health insurance is a group of doctors, hospitals, and clinics that work with your insurance company. This group has agreed to provide services to members of a particular health insurance plan at a pre-negotiated rate. Staying within your insurance plan’s network often means lower costs, as out-of-network providers may charge higher fees.
Understanding Networks
Your plan’s network is one of the primary factors that determine the total cost of ownership of your healthcare. You can save money by choosing providers within your plan’s network, so it’s a good idea to check if your preferred providers are in-network before choosing a health plan.
In-Network and Out-of-Network Coverage
Different plan types have different types of healthcare networks. Let’s look at some of the most common types and how they affect your available network of providers.
With a health maintenance organization, or HMO, you work closely with a primary care physician (PCP) that is part of a local network of providers. This PCP acts as the main point of contact for your healthcare needs, referring you to specialists within the plan network when needed. Out-of-network providers won’t be covered in the same way, and you could incur extra costs if you use them. So it’s a good idea to stay within the plan network except in the case of emergency.
With an exclusive provider organization, or EPO, you are also limited to a select network of providers. These types of plans do not cover care received outside the network except in an emergency. Unlike with an HMO plan, an EPO does not require a referral from a PCP to see a specialist, but again, it’s important to stay within the network unless you are prepared to pay out-of-pocket for care.
Finally, with a preferred provider organization, or PPO, it’s also recommended to stay within the large provider network outlined by the plan details. However, if you receive care outside this network, you may receive minimal coverage. This means that you will likely pay more than with care received within the network, but some portion of the visit may be covered. As with EPO plans, referrals are not generally required.
How to Check Which Providers are In-Network
Check your plan details ahead of time to see if your preferred providers are in-network. This will help save time when it comes to booking your healthcare appointments and save money on your out-of-pocket healthcare costs overall.
Remember that “providers” can include not just doctors, but other healthcare professionals like physical therapists, psychologists, hospitals and facilities. You can search the provider list by facility, area of specialty, provider name, and more. You can also call the plan’s customer service number for help finding these details. If you travel a lot, make sure the plan’s network has providers in places where you may seek care.
Are you ready to find an affordable health insurance plan with an extensive provider network that meets your needs? Shop our plans today, or call our helpful team at 844-933-0380 (TTY: 711) from 8 a.m. to 9 p.m. ET.
Questions about Health Insurance Networks
If you have an HMO or EPO plan, out-of-network providers are generally not covered, so you may be responsible for the full cost of the visit. If you have a PPO plan, a portion of the visit may be covered, and you would be responsible for paying the remainder.
No, in an emergency, you should seek care from the closest facility that can serve you. Your insurance provider can’t charge you more for receiving emergency care at an out-of-network hospital.
Ambetter Health Premier plan members benefit from a reciprocity agreement. This means that when traveling, they can receive care from participating providers in other states. Referrals from PCPs are not required to see a specialist, but some services may require prior authorization. Other Ambetter Health plans, like Health Select or Health Value, may not have agreements with providers in other states. Again, it’s a good idea to check your plan details ahead of time to avoid surprises when traveling.
Yes, but the timing of the change matters. If you enroll in a Marketplace plan and find out that your doctor isn’t in the plan’s network, you can switch to another plan but only until the date the coverage begins. After coverage begins, you must wait until the next open enrollment period or if you qualify for a special enrollment period because you experience certain major life events. If you decide to change plans, make sure your preferred providers are a part of the new plan’s network before you make the switch.
Yes, marketplace health insurance plan networks can change. These changes can occur for various reasons, such as contracts with healthcare providers expiring or new providers joining the network. It's important to review your plan’s network regularly, especially during open enrollment periods, to ensure that your preferred doctors, hospitals, and other healthcare providers are still included. Staying informed can help you make the best decisions for your needs and avoid any surprises when it comes to coverage and costs.
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8 a.m. to 9 p.m. ET
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