Aetna Coverage Basics
Overview of how Aetna covers rehab and why benefits vary by plan.
Types of Aetna Plans and Network Rules
Breaks down PPO, HMO, EPO, and POS plans, highlighting differences in out-of-network coverage, referral requirements, and flexibility when choosing a rehab.
Costs & What You’ll Pay
Breaks down deductibles, coinsurance, and why in-network care is usually the most affordable option.
How to Choose Rehab with Aetna
Step-by-step guidance to find the right level of care, confirm your plan, and verify benefits with facilities.
Finding the right treatment can be overwhelming, but your Aetna insurance can make it easier to choose care. Most Aetna plans cover life-saving addiction services. This page will help you understand how Aetna coverage typically works, so you can maximize your benefits and minimize your costs.
Note: You may see different Aetna plan names, administrators, or behavioral health vendors depending on your coverage, employer, or state. Aetna is part of CVS Health, and behavioral health benefits are typically managed through Aetna Behavioral Health. Follow the phone number and instructions on your ID card or member portal.
Most Aetna plans cover addiction treatment, but benefits vary widely. Knowing the type of plan you have will help you narrow your search for the right type of care. Coverage can come through an employer, the ACA marketplace, Medicare Advantage, or Medicaid, and most Aetna plans use one of the network types below. Network types determine which providers you can use and if you need a referral for specific services.
Note: Many Aetna plans are labeled as “Open Access” (such as Aetna Select℠ Open Access or Choice POS II). If you see “Open Access” on your ID card, you typically do not need a referral from a primary care physician (PCP) to see a behavioral health provider. This can make it easier to start treatment more quickly.
High-Deductible Plans (HDHP): Some Aetna plans are high-deductible plans. HDHPs are not a separate plan type, and all the network rules for PPOs, HMOs, EPOs, and POS plans noted above still apply. HDHPs generally impact how costs are handled and when you pay for care. Many HDHPs are paired with a Health Savings Account (HSA). With these plans, you could potentially pay more out of pocket before your coverage begins, but an HSA can help cover costs until you meet your deductible, and once the deductible is met, your plan could cover a significant portion of treatment costs.
The way you purchased your Aetna plan will also most likely impact your coverage. See details below on State Exchange (Marketplace), Medicare Advantage, and Medicaid Plans, and the changes to coverage based on which program you purchased your Aetna plan through.
You can get insurance coverage through the ACA marketplace via state or federal exchanges. Plans purchased through the marketplace use the same network types (HMO, PPO, EPO, or POS), but they often have some variations in coverage.
Important update: Aetna will not offer plans on the ACA marketplace starting in 2026. Because coverage can differ by state and may change yearly, it’s important to check your specific plan details and provider network for updated information.
Some people receive insurance through Aetna Medicare Advantage plans, but coverage rules can be different for these plans versus an employer-sponsored plan.
For people with limited income, Medicaid plans are a great route to receive health insurance coverage. Coverage rules for Medicaid plans vary widely by state.
Aetna will review your specific care needs and your plan to make insurance coverage decisions like they would for other medical needs, such as a heart condition or diabetes. Because of federal parity law, coverage for addiction treatment cannot be more restrictive than coverage for other medical needs.
With Aetna, coverage varies plan by plan and often state by state. Two people with Aetna may have very different benefits, even for the same treatment program.
Coverage details that often vary include:
Prior authorization needs
How long treatment is approved for
Differences in coverage for levels of care
Out-of-pocket maximums that put a cap on how much you pay
Learn more about how insurance and out-of-pocket costs usually work for rehab.
Choosing an in-network treatment facility is usually the best way to limit out-of-pocket costs. We’ve provided the following illustrative example to show how Aetna could potentially handle coverage for a hypothetical residential treatment program using a PPO plan.
Note: This example is hypothetical and actual costs depend on your specific plan and provider.
If you’re trying to pick the best treatment for you and you have Aetna coverage, the following steps can help you narrow your care options to make a final decision.
Aetna typically covers treatment based on medical necessity. Before you try to decide on a specific facility choice, it will help to understand what level of care you actually need. To help you determine the level of care that is best for you, you can speak to a medical professional.
Levels of care include:
Your specific Aetna plan will greatly impact the level of coverage you’ll receive for different facilities. You can review your insurance card or member portal to confirm your plan type. Review the table above for details on each plan type and how the different plans impact coverage at facilities, both in-network and out-of-network, as well as referral requirements and cost structures.
Before reaching out to specific facilities to confirm coverage details for your plan type, it is a good idea to narrow your choices to only a few facilities that will meet your care needs and are most likely in-network with Aetna. You can filter facilities by treatment needs and location and see whether a facility commonly works with Aetna plans. Review the filtered results to compare programs based on your specific treatment needs.
Ghost networks
It’s important to know that some people may run into what is called a ghost network, which is when providers listed as in network are not actually available, no longer accept the plan, or have extended wait times. If you run into a ghost network, you can do the following:
Request your Evidence of Coverage: This will outline your plan’s contractual obligations to you, and if in-network options aren’t available, your plan may be required to cover out-of-network care at in-network rates.
Ask about who manages your benefits: Aetna usually manages mental health and substance use benefits directly. Reaching out to Aetna can help clarify your coverage, including if you qualify for an out-of-network exception, and next steps to help you find care.
It is also important to determine how your Aetna plan would apply to the facilities you are interested in. If you reach out, a majority of rehabs will verify benefits for you for no cost and they can tell you whether the program is in network, what your potential costs could be, and if there are any limitations on length of stay for treatment.
Aetna will often require prior authorization for some levels of care, such as inpatient treatment, partial hospitalization, or residential care. When you reach out, consider asking the facilities on your shortlist the following questions:
Is this program in-network with my specific Aetna plan?
Do you handle prior authorization (may be called precertification) and ongoing insurance reviews?
What costs, if any, should I expect after my deductible is met?
If coverage changes, will you help plan the next steps in care? If so, how?
After you create a narrow list of options with clear coverage details, you’ll most likely be deciding between just a few programs. To make a final decision, try to focus on whether the program is the best fit for you and where you are. There are many factors to consider, such as:
The facility’s experience with treating your specific needs
Family involvement in treatment and aftercare options
How the program supports care if insurance coverage changes
Learn how different treatment levels work and how clinicians determine the right level of care.
See below for facilities that report accepting Aetna. Before you make a final decision about treatment, ensure you follow the steps above to confirm network status, coverage, and out-of-pocket costs.
Acceptance of Aetna does not guarantee coverage. A facility may say they accept Aetna, but coverage will still depend on your specific plan and your medical needs. If coverage is denied, ask about options for appealing the decision.