Mclean Hospital


A Premier Drug and Alcohol Treatment Program


If you live with a substance use disorder as well as other psychiatric disorders, such as depression and anxiety, we can help. At Fernside, one of McLean’s Signature Recovery Programs, we understand how difficult it can be to live with an alcohol or drug addiction. We offer a comprehensive residential alcohol and drug treatment program that is guided by the exceptional clinical care and innovative addiction research found only at McLean Hospital.

For more information or to make a referral, please call 877.691.5571.

Treatment Approach

Fernside provides attentive, individualized care for drug and alcohol addiction. Our clinicians are experts in substance abuse recovery, rehabilitation, and relapse prevention and are here to help motivate you or someone you care about to take the necessary steps to overcome addiction.

Our comprehensive addiction services are best-suited to those who:

  • Require treatment following the completion of detoxification
  • Have addictive disorders complicated by other psychiatric issues such as depression and anxiety
  • Seek longer-term individualized care in a discreet, serene setting
  • Require medication evaluation and management
  • Are ambivalent about making the changes needed to maintain sustained recovery
  • Have previously completed a treatment program but have relapsed or are at risk to relapse
  • Have tried other treatment programs but were not ready for and/or satisfied with the previous care

Fernside is an integral component of the internationally recognized McLean Hospital Substance Use Disorders Division, which has an unparalleled history of clinical, research, and educational leadership in the substance abuse field. Program highlights include individualized care designed to address the mental, physical, and spiritual components of addictive disorders by integrating scientifically proven treatments with twelve-step and other self-help resources.

Additional program services include:

  • Fernside staffUtilization of an effective recovery and rehabilitation approach to alcohol and drug addiction and contributing co-occurring psychiatric conditions through psychological treatments including motivated-enhancement therapy (MET), cognitive behavior therapy (CBT), dialectical behavior therapy (DBT), mindfulness-based cognitive therapy, and acceptance and commitment therapy (ACT)
  • Intensive onsite diagnostic assessment including medication evaluation and management
  • Treatment provided under the supervision of Harvard Medical School-affiliated clinicians who are expert in substance use disorders and related psychiatric conditions
  • Intensive individual therapies, small group treatment, and extensive health education
  • Comprehensive mind and body recovery program that includes yoga, individualized fitness plans, nutrition education, smoking cessation, and expressive art and music therapies
  • Hands-on support and education for family members and significant others as well as close collaboration with referrers and community providers
  • Careful aftercare planning and coordination to facilitate and implement an effective post-discharge treatment strategy
  • A specialty track for those who have remained abstinent from substance abuse but have psychiatric issues that need to be addressed to foster full recovery

treatment team

Program Leadership

Rocco Iannucci, MDRocco A. Iannucci, MD, Director

Board certified in psychiatry and addiction psychiatry by the American Board of Psychiatry and Neurology, Dr. Iannucci is an instructor in psychiatry at Harvard Medical School. His clinical interests include treatment of people with severe substance use disorders and those with co-occurring mental health conditions. He has published on the treatment of addiction in residential programs, and on cocaine abuse.

Senior Consultants

Staff and Associates

In addition to Dr. Iannucci, the Fernside treatment team consists of an independently licensed clinical social worker, a nurse, and community residence counselors. Fernside staff work closely with McLean Hospital’s leading experts in the field of substance abuse treatment.

Books by Fernside Authors

McLean Hospital faculty have penned more than 50 books in recent years, including several on the topic of addiction.


Fernside is located on a mountain ridge with a breathtaking view of the valley below and the city of Boston in the distance. An elegant mansion built in 1835 and previously a bed and breakfast listed on the Select Registry as a Distinguished Inn of North America, Fernside exudes all the warmth and charm of a luxurious New England inn.

Our accommodations are serene and designed to support maximum engagement in treatment. Highlights include:

  • Nine private rooms, each with its own full bath
  • An onsite fitness center and access to local fitness resources, including skiing, swimming, and tennis
  • Meals prepared onsite by culinary professionals from a five-star restaurant

Admission & cost


People come to Fernside from across the United States and the world. We can help arrange admission from most any domestic or international location.

Fernside fields inquiries for the program 24 hours a day, seven days a week. For more information about the program or admission, please contact:

Phone: 877.691.5571

Please note that our knowledgeable staff members have resources nationwide and will help arrange drug or alcohol detoxification services as needed prior to admission.


The fee for Fernside is $1,985 per day. A 30-day minimum stay is required to help assure full benefit from the program. Fernside is self-pay program and therefore we do not accept insurance or any third party reimbursement. 

Included in Day Rate

Clinical Services

  • Intensive individual therapy
  • Psychiatric assessment
  • Medication evaluation and management
  • Internal medicine/initial physical
  • Intensive group therapies
  • Family and couples meetings
  • Patient education services
  • Case management services (ongoing consultation with referring clinician and aftercare planning)
  • Nutritional consultations

Non-Clinical Services

  • Private room/private bath (single occupancy)
  • All onsite meals, snacks, beverages
  • In-state airport transportation (pick up and return)
  • Transportation services to scheduled clinical appointments
  • Onsite fitness room

Not Included in Day Rate

These optional ancillary clinical and medical services may or may not be covered by patient’s insurance.

McLean Hospital Ancillary Services

  • Neurological consultations
  • Psychological testing
  • Neuropsychological testing
  • Specialty imaging - MRI
  • Forensic consultations
  • Specialty psychiatric consultations

Other Medical Services

  • Ambulance services
  • Dental services
  • Emergency room visits
  • Medications
  • Laboratory testing
  • Specialized pain management
  • Physical therapy
  • Sleep study
  • Special duty nursing
  • Specials 1:1

Non-Clinical Services

  • Transportation services (other than to scheduled appointments)
  • Offsite meals
  • Personal beauty/hair salon services
  • Personal laundry and cleaning
  • Therapeutic services (massage, acupuncture, etc.)


Where is Fernside located?

Fernside is located in Princeton, Massachusetts. For more information on directions, parking, and local accommodations, please visit our Maps & Directions page.

Who benefits most from Fernside?

Fernside’s residential program focuses on treating individuals with serious substance use conditions, many of whom will have co-occurring psychiatric conditions including depression, anxiety, trauma, or personality disorders.

Is family involved in treatment?

Family involvement is strongly recommended. With permission of the patient, family members can be involved in assessment and in treatment/aftercare planning.

Is smoking permitted?

Smoking is allowed in designated outdoor areas only. No smoking is allowed inside any of our buildings.

When are visiting hours?

At Fernside, visiting hours are noon to 8pm on weekends, and other hours as arranged.

Are cell phones and other electronics allowed?

Individuals are allowed to hold and use their cell phones and computers, with some guidelines to prevent disruption of the program and other patients.

Is Alcoholics Anonymous a required component of treatment?

In addition to individual and group therapy at Fernside, attendance of AA and other self-help groups is strongly encouraged.

Is the patient’s stay at the program kept private?

Privacy is of the utmost importance to Fernside, and we ensure confidentiality through our highly trained, professional, and discreet staff. No third party, whether known to the patient or not, has access to medical records, health information, or any information about a patient’s stay without prior written authorization from the patient.

Are support and educational resources available?

From helpful online resources to self-help groups and more, McLean Hospital is committed to providing support and mental health education to aid patients and families on the path to recovery.

Is aftercare planning a part of the program?

The treatment team works closely with the individual as well as with family, significant friends, and outside providers to develop a personalized aftercare plan. Recommendations by staff are made based upon clinical needs, progress made during treatment, and long-term treatment goals.

Can former patients access their medical records?

All requests for medical records should be directed to McLean’s Health Information Management Department.

Are support groups offered during and after treatment?

To complement our programs’ services and encourage individuals’ initiatives in their own recovery, many self-help groups are hosted by McLean, including Alcoholics Anonymous, Narcotics Anonymous, and SMART Recovery.

Does McLean gather patient feedback?

McLean is dedicated to maintaining high-quality and effective patient care. To ensure that those standards remain at the highest level, we utilize a number of feedback instruments and quality indicators. Among these tools are the Perceptions of Care survey which monitors patient satisfaction, and BASIS-24™, a psychiatric outcomes measurement tool created at McLean and widely used in the US and around the world, which delivers feedback on the patient care experience.