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Rehab Centers That Accept HMO Insurance

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Health Maintenance Organization (HMO) insurance plan on a table as low-cost rehab insurance

Published: June 17, 2025

Reviewed by Matthew N. Parker, MD

The 2022 National Survey on Drug Use and Health (NSDUH) revealed that almost 49 million people in the U.S. over the age of 12 had a substance use disorder (SUD). Of those, only an estimated 0.5% of adolescents and 0.8% of adults sought treatment. An additional 2% of adolescents and 4.5% of adults considered but did not seek treatment for SUDs.

Mental health challenges and addiction disorders require specialized care for treatment, and it’s an important part of healthcare in the U.S. Unfortunately, it can also be cost-prohibitive. Access to insurance and healthcare providers improves quality of life and helps those who need it. A Health Maintenance Organization (HMO) can be an affordable rehab insurance option for anyone seeking care through a rehabilitation program.

While addiction is a recognized disorder in healthcare, stigmas about it can keep people from pursuing drug and alcohol rehab even when they think they need it. However, evidence-based treatment for drug and alcohol addiction can help you maintain sober living practices and build a full life in recovery. Substance abuse treatment with an HMO policy can be affordable and attainable.

This guide will teach you how to locate rehab centers that accept HMO insurance and provide ways to ensure you’re getting the most out of your benefits.

About HMO Insurance

Health Maintenance Organization (HMO) insurance is a plan type that most insurance providers offer. Its benefits include lower costs on premiums, treatment, and other medical expenses. HMO addiction treatment coverage should include most standard care options, though what each policy will pay can vary.

HMOs have a network and providers that they require patients to use. It may also be limited by distance, but you can often get a referral if you need care not provided by your primary care physician (PCP). As long as the medical professional is within the network, your out-of-pocket costs should be reduced. Be sure to check with your specific policy on whether a provider is in your HMO healthcare network.

When you need care out-of-network, an HMO usually won’t cover those costs unless it is for emergency care or other special circumstances. You’ll have to check the policy of your specific plan to know what is or isn’t covered.

Major providers that offer HMO insurance plans include:

Treatment options under each provider and policy can differ, but they should include coverage for behavioral health, medical detox, prescription medication, and doctor appointments.

What Is the Difference Between a PPO and an HMO?

Two common insurance types for addiction treatment are HMO and PPO. When comparing your health insurance options for rehab, it’s important to understand the differences between them. Knowing whether HMO or PPO will be best for your rehab can ensure you have the right healthcare coverage for treatment.

HMO policies require your PCP to refer you to other providers, but a Preferred Provider Organization (PPO) policy does not. If you want to go outside your network for treatment, a PPO policy will pay less than they do for in-network care, but usually covers some treatment costs. They offer incentives in the form of lower out-of-pocket costs when you use their recommended providers. An HMO policy will only pay for out-of-network care in an emergency or other specified circumstances.

Most HMO policies offer lower premiums and reduced out-of-pocket costs compared to other plans. These work best for patients who can access in-network providers and need lower costs. If you want to utilize a rehab facility or program that isn’t in-network for HMO (and may be outside of the coverage area physically), a PPO rehab insurance plan may be a better option. If you can’t afford higher premiums and out-of-pocket fees, you may need to choose an HMO.

HMO Insurance:

  • Requires you to use in-network providers
  • Requires PCP referrals
  • Lower premiums and out-of-pocket costs

PPO Insurance:

  • Allows you to use out-of-network providers but may offer less coverage for those
  • Does not require PCP referrals
  • Higher premiums and out-of-pocket costs

The Benefits of an HMO Plan

HMO plans can offer centralized, streamlined options for patients as low-cost rehab insurance. Because your PCP has to refer you for other care, they can track which specialists you see and what treatments you receive. HMO care coordination can ensure providers have the correct information and reduce overlap in care.

Coverage areas are usually particular, making approvals easier if you choose an in-network rehab center. Out-of-pocket expenses for SUDs and mental health treatment are also simpler to predict with an HMO plan for addiction treatment.

The benefits of HMO plans for rehab include structure because they are so coordinated, which can ensure that limited financial resources stretch as far as possible. When you need a policy that fits your budget and the needs of you and your loved ones, HMO coverage for drug rehab may be the best option.

Types of Rehab Services Covered by HMO Plan

HMO health insurance plans may cover a range of services to help with drug addiction rehab. You’ll have to review your policy to understand which services and providers are covered and any restrictions on the extent of that coverage. The services listed below are generally included in most HMO rehab services plans.

Detox Services

Detox covered by HMO can be inpatient or outpatient. It depends on the severity of your addiction, what you’re addicted to, and what other factors must be considered. Your doctor should outline the process and address questions you may have. Withdrawal symptoms can be severe, and seeking professional help for detoxification can help you avoid relapsing from DIY detox attempts.

Inpatient Residential Treatment

Inpatient rehab with HMO insurance is usually covered when it’s determined to be medically necessary. Care around the clock from medical providers is costly, and several addictions can be treated successfully with proper outpatient care. Because HMO plans are particular and aim to keep costs low, getting coverage for inpatient rehab approval can be challenging.

Outpatient Treatment Programs

Outpatient addiction treatment with an HMO is frequently a good option for patients struggling with a SUD. The time commitment will be less than that of an inpatient program, which allows you to live at home while receiving care. You may also be able to handle some of your daily tasks and responsibilities, but still get treatment for your addiction.

Partial Hospitalization Program (PHP)

Less intense than inpatient care but more intense than other outpatient options, a partial hospitalization program (PHP) allows recovering drug addicts to continue rehabilitation while bridging the gap between inpatient care and a fully outpatient program. It can also be helpful when an addiction doesn’t require a full hospital stay but benefits from some inpatient treatment. Care is provided 5-7 days a week, depending on your doctor’s recommendation. You’ll attend intensive therapy sessions, be given medications as needed, and be seen by healthcare providers who assess your condition and help form your treatment plans.

Intensive Outpatient Program (IOP)

Intensive outpatient programs, or IOPs, are used to treat addictions that need a higher level of care but don’t require inpatient rehab. They can also be a step-down program for someone transitioning from an inpatient or PHP program. An IOP can require attendance to therapy sessions 3-5 days a week for a few hours a day, medication maintenance, and regular check-ups. Patients can often maintain components of a normal life but still receive care for their addiction and mental health.

Standard Outpatient Therapy

This form of care is applied to less severe addictions and as a maintenance program for those who have been through more intense programs and are ready for the next step. It can include individual therapy and support group meetings, medication, and relevant doctor visits for follow-up care.

Dual Diagnosis Treatment

In some cases, your provider may determine that you need mental health disorder treatment in addition to your addiction care. A dual diagnosis with HMO insurance means that any mental health conditions and medical care benefits will factor into coverage and out-of-pocket costs. Your treatment will integrate mental healthcare for your disorder and your addiction to give you as many tools as possible in recovery.

Medication-Assisted Treatment (MAT)

For some addictions, medication is helpful in the short term but unnecessary long term. For others, such as addiction to alcohol and some opioids, medication may be required for the rest of one’s life. Whatever your addiction may be, medication-assisted treatment (MAT) can help ease withdrawal symptoms and urges to relapse. Research shows that MAT combined with therapy, especially support group sessions, can reduce relapses and help you maintain recovery.

How to Use Your HMO Plan to Access Rehab

To use your policy, contact your provider to verify your HMO rehab coverage. You’ll want to ensure that the rehab type and facility you choose are in-network. HMO plans may require that your PCP give a referral for all rehabilitation care before the plan will pay. Your insurer will also tell you whether a facility is in the coverage area, which is usually needed to access HMO benefits. Using HMO for rehab may also include verifying with the facility of your choice that they accept your insurance and take care of pre-authorization. If they do that in-house, it reduces your task list for getting care.

If you choose an out-of-network facility, your HMO policy probably won’t pay for care, which raises your out-of-pocket costs significantly. However, an in-network addiction treatment center may still come with costs to you. There may be copayments you’re required to make upfront, deductibles that you’ll have to meet before your policy will pay for certain treatments, and coinsurance costs, all of which should be outlined in your explanation of benefits (EOB). Speaking with an insurance representative or the billing department for your rehab facility should help you sort out what your total costs may be once a treatment plan has been devised.

How to Find Rehab Centers That Accept HMO Insurance

You can use a combination of tools to find HMO rehab centers. An online search can give you a list with the term “HMO-accepting rehabs near me.” Make sure you enable location settings on your device so the search engine results page (SERP) gives you accurate listings.

Your insurance company should have a provider directory on its website, which you can access by logging into your account in most cases. A search of their approved providers should be straightforward. However, these lists can be outdated, so if you’re not connecting with a rehab facility or they state that your insurance isn’t accepted, try calling your provider for an accurate list.

RehabNet is a useful resource that can make finding a directory of rehab with HMO easier than following the steps above. Instead of tracking down your coverage details and waiting on hold with your insurance provider, you can utilize our searchable directory of HMO-accepting treatment centers. We verify your insurance coverage for free and connect you with licensed professionals who can place you with treatment facilities that best fit your needs and insurance benefits.

What to Expect From a Rehab Facility That Accepts HMO Insurance

Your HMO rehab experience should be on par with that of any other patient, regardless of their insurance type. The fact that you have an HMO policy should not reduce the standard of care you receive or the treatment plan that is recommended to help you in recovery. However, the nature of HMO policies may mean that the facilities where you can be treated are determined by zip code and network.

One of the ways that HMO insurers keep policy costs down is by working with a specific set of providers in a defined area. If your area offers few HMO-approved rehab facilities, you may be bound by your policy to choose the best option. With PPO coverage, you may have more choices, but your policy costs may also be higher. Selecting the right insurance for you involves considering these and other factors.

Whatever facility you decide on with an HMO policy, it should offer structured treatment plans based on standards outlined by what is medically necessary for effective care. Know that in-network rehab treatment for areas with limited options may require that you be placed on a waitlist due to high demand with a smaller pool of providers.

It’s important that you also understand that care in recovery extends beyond the initial rehab program. As a recovering drug addict, you’ll need maintenance care in the form of outpatient follow-ups and other aftercare, such as regular attendance in a support group, individual therapy, medication regimens, and check-up appointments with your PCP or other healthcare providers.

FAQs About HMO Insurance And Rehab

Does every HMO plan cover rehab treatment?

It depends. If your HMO is through the Healthcare Marketplace, rehab treatment is one of the essential benefits required under the Affordable Care Act (ACA). Most other HMO plans will offer some sort of rehab coverage. However, the percentage and types of treatment covered will vary by plan. The best method for finding this out is to read your policy or contact your insurance provider.

Do I need a referral to go to rehab with an HMO?

Possibly. Your HMO provider may require a referral to an in-network facility. Read your EOB or search your insurance database to verify that the rehab center is in-network and whether your PCP needs to issue a referral.

What if the rehab center I want is out of network?

It’s less likely that your HMO plan will cover out-of-network care unless it’s emergent or falls under other special circumstances. Check with your insurer to determine if they cover any care at your preferred rehab center.

Can I get emergency rehab care without pre-authorization?

Usually yes. Emergency care is frequently covered through an HMO plan. However, it’s best to reach out to your insurer as soon as possible when you need to visit the ER.

Will I have to pay out-of-pocket for part of the rehab treatment?

It’s possible. It depends on the rehab costs and percentage covered by your insurance provider.

How long does insurance cover treatment in rehab?

This will vary based on your specific plan, the type of rehab you need, and the facility you choose. Check with your policy or provider for more information.

Let RehabNet Help You Find Treatment

With all the barriers that can be placed on you to prevent you from getting help, know that finding in-network rehab help shouldn’t be one of them. The sooner you start the journey to recovery, the better. When you choose to begin is the perfect time, and RehabNet can help you. Our assistance is free and confidential through licensed professionals who are available 24/7. We’ll match you with in-network treatment centers and verify insurance coverage over the phone or online.

Reaching out to RehabNet for help with rehab means you’re one step closer to recovery and everything that goes with it.