McLean Hospital- Ambulatory Treatment Center at Naukeag

McLean Hospital- Ambulatory Treatment Center at Naukeag Petersham Massachusetts

At McLean Naukeag, we offer residential and partial hospital care for those struggling with substance abuse and co-occurring psychiatric disorders. Our clinical setting provides a safe and compassionate environment for individuals to receive comprehensive treatment services. These services include an in-depth medical assessment, group therapy, medication stabilization, addiction education, aftercare assistance, and more. We offer care on a residential, inpatient, partial hospital, and outpatient basis.


The McLean Ambulatory Treatment Center at Naukeag, operated by McLean Hospital, an affiliate of Harvard Medical School, offers short-term residential and partial hospitalization programs for adults struggling with substance abuse and co-occurring psychiatric disorders. Please note that medical detoxification is not available on-site. Clients requiring detox or psychiatric stabilization can be referred to McLean Hospital. Our treatment at Naukeag is intended for individuals who have already completed detox and need additional treatment in a structured environment. The facility is located in Ashburnham, Massachusetts.


At McLean Naukeag, we provide individualized treatment plans that combine an in-depth assessment with medication management, group therapy, and life skills training. Other features of our treatment program include illness management, abstinence education, aftercare assistance, and relapse prevention. To supplement our programs and services, McLean hosts many self-help groups both during and after treatment.

Our program also focuses on stress management and helping clients to achieve their personal, career, and recovery goals.

We highly recommend family involvement throughout treatment. With the resident’s permission, family members are active participants from the initial assessment to aftercare planning.


Our staff at McLean Naukeag includes board-certified psychiatrists, licensed clinical social workers, registered nurses, and expressive therapists.


Our facility is located in Ashburnham, Massachusetts, 60 miles northwest of Boston. Situated beside a lake on well-kept grounds, our residents enjoy comfortable bedrooms, access to common areas, and the beautiful surroundings. Visitors are allowed during designated hours every afternoon, and cell phones are permitted except during therapy sessions. Smoking is allowed but only in designated outdoor areas.


To date, we have received positive feedback from four alumni of McLean Hospital – Ambulatory Treatment Center at Naukeag. All alumni rated the treatment effectiveness with five out of five stars. They also gave four- and five-star ratings for accommodations and amenities, as well as meals and nutrition. One alum, K.C., praised the sleeping accommodations and food quality. Another alum, J.P., expressed their gratitude towards the exceptional staff and mentioned how McLean helped save their life. Alum K.C. also highlighted the expertise of the staff in handling addiction and mental illness.

On our unofficial Facebook page, the facility received three five-star reviews. Alum Debbi mentioned how McLean was instrumental in their recovery.


At the time of this writing, three loved ones have submitted positive feedback to They gave the facility four- and perfect five-star ratings for treatment effectiveness. Loved one Cathy praised the great support provided by the facility. She also rated the level of staff support and quality of counseling, leadership, and pricing. Loved ones gave three out of five stars for accommodations and amenities, and meals and nutrition. One mother, Amy, described the program as comprehensive, caring, and compassionate, and highly recommended it.


At McLean Hospital, we accept Medicare, Massachusetts Medicaid, and many private insurance and managed care plans, including Blue Cross Blue Shield, Harvard Pilgrim, Tufts, and United.

McLean Hospital- Ambulatory Treatment Center at Naukeag Reviews

As a first timer to rehab, I was sooo impressed with Naukeag. Some of the highlights were cell phone and computer use, mostly single bed rooms, good food, freedom to leave the property for walks, hikes or with family, great staff that cared and motivated patients, and lots of free time. I was only disappointed in not receiving a refill on a new prescription I was prescribed for high blood pressure. They tripled my dose half way through the treatment and I only had a few days left of medication by the time I left. I received refills for all the other psychiatric medications but not this "medical" one. I saw improvements on my blood pressure on my home device and was just confounded they wouldn't refill this prescription. I'm waiting until I see my NP in a couple weeks to have it refilled. The facility was good because of the freedoms. It was clean, well run, and inspiring. The only weakness I saw was the nursing staff and this was only a small weakness. Some of the nursing staff were a little moody at times. This may have been due to importance of the job with restricted medications (I wasn't on any).
This place gets it right. I've been to way too many in Pa, NJ Ny and my trip to MASS was soo worth it. I think this place has everything. Speaking of the detox and especially the aftercare. The doctors nurses and staff are way above anything I experienced but the people themselves. I mean patients made it great. I can go on and on. Ty naukeag.
A two week program is simply not enough. Do not waste your money on this place.
I entered treatment at Naukeag completely broken. The individual work I did with my counselor and the groups helped me to get in touch with the trauma that was fueling.My addiction. Thr setting of Naukeag Lake is so serene that while you are at such a vulnerable time, I found refuge in thr ability to reconnect with God- something I'd lost in active addiction.
My dearest friend -- my soul sister -- bravely fought a horrible addiction for so many years. Naukeag was the only treatment that helped her conquer it.