Treatment Centers in Montana That Accept Mountain Health CO-OP

Does Mountain Health CO-OP Cover Rehab in Montana?

Yes. Mountain Health CO-OP’s 2026 Montana individual policy covers chemical dependency treatment, including medically monitored and medically managed intensive inpatient care, clinically managed high-intensity residential care and outpatient treatment. The same policy treats mental illness on the same basis as any other illness, so Montana addiction treatment programs are paid like other covered care.

Mountain Health CO-OP is the trade name of Montana Health Cooperative, an Affordable Care Act nonprofit called Montana Health CO-OP until 2020. It sells individual, First Nations and employer plans in Montana and Idaho for 2026, plus Medicare Supplement, and offers no Medicaid or Medicare Advantage plan, so rehabs taking private insurance see its cards alongside other commercial plans.

Does Mountain Health CO-OP Cover Inpatient Rehab in Montana?

Yes, with preauthorization before admission. Mountain Health requires it for inpatient residential chemical dependency treatment, and its medical policy sets standards for residential rehab programs: state licensure, accreditation from a body such as The Joint Commission or CARF, a board-certified medical director, a psychiatrist available around the clock and a nurse on site at all hours.

How long will Mountain Health CO-OP authorize residential treatment in Montana?

Up to 60 days per authorization period. Mountain Health reviews stays beyond 60 days case by case, and the program must ask for reauthorization seven days before the current period ends. Decisions use ASAM levels of care and a DSM-5 diagnosis, and wilderness programs, boot camps, therapeutic boarding schools and luxury facilities are excluded.

Do I need a referral for residential rehab with Mountain Health CO-OP in Montana?

Yes. Residential treatment, partial hospitalization and intensive outpatient admissions need a referral from an in-network outpatient behavioral health provider, such as a physician, nurse practitioner, psychologist, LCSW or licensed addiction counselor, who assessed the member in the previous 14 days. A referral from the treatment center itself does not count, though step-downs inside the same facility need none.

Does Mountain Health CO-OP Cover Detox in Montana?

Yes. Mountain Health’s behavioral health reimbursement policy lists acute residential treatment including detoxification, and its authorization form names inpatient medical detox and chemical dependency admissions. Personify Health, formerly HealthComp, reviews requests at 833-412-4144, deciding urgent ones within 72 hours, and members sent to medical detox with insurance in an emergency need notice within 48 hours.

Does Mountain Health CO-OP Cover Outpatient Rehab in Montana?

Yes. Mountain Health covers outpatient chemical dependency treatment from hospitals, accredited treatment centers, physicians, psychologists, licensed social workers, licensed professional counselors and state-licensed addiction counselors. It defines partial hospitalization with insurance as at least 20 hours a week over five to seven days, and intensive outpatient as at least nine hours a week for adults.

Mountain Health makes the first mental health visit of each year free with an in-network provider or Doctor on Demand, its 24/7 virtual care partner, on most group and individual plans, though Standard, Link and high-deductible plans are excluded. That first visit can be the outpatient assessment a member needs before a referral to intensive outpatient with insurance.

Does Mountain Health CO-OP Cover Suboxone, Methadone and Other Addiction Medications?

Yes. Mountain Health’s behavioral health policy lists medications for opioid and alcohol use disorders, including methadone, as covered services, and RealRx manages the pharmacy benefit on a four-tier list from preferred generics to specialty drugs. Some drugs need prior authorization or step therapy, so buprenorphine programs taking insurance confirm the tier first.

Does Mountain Health CO-OP cover methadone clinics in Montana?

Yes. Mountain Health pays certified, accredited opioid treatment programs for methadone, oral, injectable or implanted buprenorphine and naltrexone, along with dispensing, counseling, therapy, toxicology testing and intake, and its opioid treatment program policy states no prior authorization requirement. Members using methadone medication clinics pay their plan’s usual cost share.

How fast does Mountain Health CO-OP decide drug prior authorizations?

Within 72 hours for standard requests and 24 hours for expedited ones. Formulary changes come with at least 60 days’ notice to members already taking the affected drug, as in the February 2026 notice, and RealRx pharmacy customer service, 855-885-7695, answers around the clock for members on naltrexone with insurance or similar medications.

Mountain Health CO-OP Rehab Centers in Montana Near Lakes, Rivers and Mountains

Mountain Health CO-OP’s network choice matters more than scenery. Peak plans use a statewide PPO, Plus plans give the lowest copays at participating community health centers and Peak rates elsewhere, and Rocky Mountain plans use a narrow network in four south-central counties, so the same lake or river town can be in network on one plan and not another.

Mountain Health CO-OP rehab near lakes

Lake settings include Lake Koocanusa north of Libby in Lincoln County, Lake Como near Hamilton in Ravalli County and Hebgen Lake by West Yellowstone. Peak plan members can use rehabs near lakes and rehab centers in Hamilton in the statewide PPO, while Rocky Mountain plans reach none of those counties.

Mountain Health CO-OP rehab along rivers

River country inside the Rocky Mountain network includes the Yellowstone at Laurel, the Musselshell at Roundup and the Clarks Fork of the Yellowstone near Bridger in Carbon County. Rocky Mountain members using rehabs near rivers or Laurel treatment programs stay in network, while neighboring Stillwater County is outside it.

Mountain Health CO-OP rehab in the mountains

Mountain settings in the Rocky Mountain network’s counties include the Pryor Mountains in Carbon County and the Absaroka Range above Big Timber in Sweet Grass County. Rehabs near mountains and Big Timber rehab programs fall inside that narrow network, and residential admission still needs a referral and preauthorization.

How Do I Find a Rehab That Accepts Mountain Health CO-OP in Montana?

Browse the listings on this page. Each program shown lists Mountain Health CO-OP among the insurance it accepts, and filters narrow the results by city, level of care and substance. Each listing shows the program’s phone number, so the first call reaches admissions directly, and sliding scale programs appear for members facing a deductible.

Admission with Mountain Health CO-OP starts with an in-network outpatient assessment and referral for residential, partial hospitalization or intensive outpatient care, followed by preauthorization through Personify Health. Member services, 800-299-6080, weekdays 8 a.m. to 6 p.m. Mountain time, handles benefit questions, and the networks and plan types in Montana are below.

Mountain Health CO-OP rehab in Billings

Billings sits in Yellowstone County, one of four counties in the Rocky Mountain network. Members on a Rocky Mountain Gold, Silver or Bronze plan can use downtown Billings rehab programs in that network, and programs in Lockwood or Laurel also fall inside Yellowstone County, while Peak members can go anywhere in the state.

Mountain Health CO-OP rehab in Helena

Helena is Mountain Health CO-OP’s home: the cooperative is headquartered on Hialeah Street and handles billing and enrollment from a Helena post office box, while claims go to Salt Lake City. Helena members on Peak or Plus plans use the statewide networks, including Helena Valley programs, with Personify Health reviewing authorizations.

Mountain Health CO-OP rehab in Missoula

Missoula members on Plus plans pay the lowest Tier 1 copays at participating community health centers and Tier 2 amounts with other Peak providers, which shapes the cost of the outpatient assessment that comes before any referral. Members can then use Missoula drug and alcohol programs in the Peak network for intensive outpatient or residential care.

Mountain Health CO-OP rehab in Kalispell and the Flathead

Members of federally recognized tribes in Kalispell, Lake County and across Montana can buy First Nations plans on the Peak, Plus or Rocky Mountain networks, in Zero Cost and Limited Cost sharing versions. Those plans carry the same chemical dependency benefit, so Kalispell treatment programs in the Peak network follow the same referral rule.

Can I use Mountain Health CO-OP for rehab outside Montana?

Only in limited cases. From January 1, 2026, Mountain Health limits coverage outside Montana and Idaho to emergency or urgent care, authorized in-network Utah providers and out-of-network providers in other states when the service is not available locally. Employer group members also have the Aetna Signature Administrators network for care outside the two states.

How much does rehab cost with Mountain Health CO-OP in Montana?

Costs depend on the plan’s metal level: Gold, Silver, Bronze, Bronze HDHP or Catastrophic. Deductibles, copays and coinsurance apply until the yearly out-of-pocket maximum, after which the plan pays in full for covered care. Out-of-network programs are paid at a lower level and can bill the balance, except in emergencies, which are protected.

Mountain Health CO-OP members can check subsidy eligibility for Montana plans at healthcare.gov, the marketplace where its individual plans are sold, before choosing a metal level. Listings here also show payment assistance programs and state funded MAT, which can fill gaps while a deductible is being met.