McLean Hospital Cost: Belmont, MA

How we estimated this cost

McLean Hospital does not publish specific pricing on its website. We triangulated this estimate from five public sources:

1. SAMHSA Treatment Locator confirms McLean as an MA-licensed psychiatric hospital with addiction and co-occurring disorder services.
2. CMS Hospital Compare lists McLean as a Medicare-certified psychiatric hospital in Belmont, MA.
3. US News & World Report Best Hospitals Psychiatry rankings — McLean has historically ranked #1 or top 3 among US psychiatric hospitals.
4. Harvard Medical School affiliate status — McLean is one of Harvard’s primary psychiatric teaching hospitals; part of Mass General Brigham health system.
5. Our New Jersey state cost guide documents regional hospital-based psychiatric + addiction pricing at $40K–$120K+ per 30 days.

We placed McLean’s estimate at $45,000–$95,000 per 30-day stay — spanning the upper tier of US psychiatric hospital addiction programs. Pricing reflects Harvard teaching affiliation, Mass General Brigham system context, specialty program infrastructure (OCDI, DBT Residential, Gunderson, etc.), and 24/7 attending psychiatrist staffing.

This is an editorial estimate, not a quote. Actual cost depends heavily on length of stay, specific program (general psychiatric vs OCDI vs DBT residential vs Proctor House addiction), insurance network status, and DRG billing specifics.

What makes McLean Hospital distinctive

McLean is fundamentally different from most facilities on this site. It’s not a rehab — it’s a Harvard-affiliated psychiatric hospital that offers specialized addiction services as one part of a broader psychiatric care portfolio. This matters clinically because:

• Academic teaching hospital — clinical staff includes Harvard Medical School faculty; clinical protocols reflect current research.
• Specialty program breadth — OCDI (one of the leading OCD treatment programs in the world), DBT Residential, Gunderson Residence, adolescent programs — unavailable at free-standing rehabs.
• Treatment-resistant capability — ECT (electroconvulsive therapy) and TMS (transcranial magnetic stimulation) for severe treatment-resistant depression comorbid with SUD.
• Mass General Brigham system integration — McLean is part of one of the largest academic health systems in the US.
• Research and clinical trials — patients may have access to cutting-edge treatments through ongoing research protocols.
• 240-acre Belmont campus — hospital setting with specialty residential programs co-located.
• Historical prominence — McLean has been associated with notable literary and historical figures; continues to serve high-profile and complex clinical populations.

Who should consider McLean Hospital

McLean is likely the right clinical fit if you have:

• Severe, treatment-resistant psychiatric conditions alongside SUD (depression, OCD, bipolar, borderline personality)
• Active psychiatric crisis requiring inpatient stabilization
• Adolescent psychiatric + SUD comorbidity
• Complex neuropsychiatric presentation
• Need for ECT or TMS
• Complex withdrawal (seizure history, high-dose benzodiazepines, severe alcohol)

A residential rehab (Caron, Hazelden, Mountainside, Wellbridge) is more appropriate if:

• Primary SUD with modest co-occurring conditions
• Standard-to-moderate withdrawal without major medical complexity
• Cost is a material concern
• Full hospital psychiatric infrastructure not clinically necessary

This decision should be made with a physician, psychiatrist, or licensed clinician — not on cost alone.

Massachusetts parity framework

McLean operates under MA’s addiction and mental health framework:

• MA Chapter 258 (2014) — Massachusetts landmark SUD treatment legislation guaranteeing specific levels of insurance coverage.
• MHPAEA federal parity — applies across commercial plans.
• MA Mental Health Parity Act — state-level parity protections layered on federal.
• MA DPH licensure — required for MA hospital operations.
• CMS Medicare and MassHealth Medicaid — McLean participates in both; MassHealth coverage varies by specific program.

What this estimate covers

A typical 30-day stay at McLean includes:

• 24/7 attending psychiatrist coverage — on-site psychiatrist and/or addiction medicine physician continuously available
• Integrated medical care — labs, medication management, medical consultations via Mass General Brigham system
• Medical detox first, if needed (ASAM 3.7 or 4.0), usually 5–10 days
• Residential psychiatric + SUD programming — program-specific (Proctor House for addiction, OCDI for OCD, etc.)
• Individual therapy (2–3 sessions per week)
• Group therapy — daily, often specialty-specific (DBT skills, OCD exposure, addiction process)
• MAT when clinically indicated
• Trauma-focused therapy (EMDR, CPT) for PTSD comorbid patients
• ECT or TMS if indicated for treatment-resistant depression
• Neuropsychological testing when clinically relevant
• Family therapy sessions
• Specialty program components (DBT skills groups, OCD exposure and response prevention, etc.)
• Nursing at hospital staffing ratios
• Room, meals, case management, discharge planning

Insurance cost scenarios

Estimated out-of-pocket cost for a 30-day stay, assuming commercial PPO or Medicare coverage:

Hospital-level psychiatric care authorization for commercial PPOs is typically case-by-case — McLean’s admissions team handles clinical authorization documentation.

Comparable national psychiatric + addiction programs

See our New Jersey rehab cost guide for additional regional pricing.

Admissions process (typical)

1. Pre-screen call — McLean admissions collects clinical history, psychiatric symptoms, SUD history, prior hospitalizations, insurance.
2. Emergency vs scheduled pathway — For active psychiatric crisis, ED evaluation and direct admission may be the route.
3. Clinical assessment — Determines appropriate program (general adult psychiatric, OCDI, DBT residential, adolescent, Proctor House addiction, etc.).
4. Insurance verification and authorization — Commercial PPO hospital-level stays require medical-necessity documentation.
5. Medical clearance — Hospital-level pre-admission medical screen.
6. Admission — Same-day for acute psychiatric emergencies; 24–72 hours for scheduled specialty program admissions.
7. Multidisciplinary treatment planning — Psychiatrist, addiction medicine physician, specialty program team, case manager coordinate.
8. Step-down planning — Residential to PHP, IOP, or outpatient (often at McLean outpatient services or Mass General Brigham network providers).

Outcomes research context

Evidence-based facts for hospital-level dual-diagnosis care:

• Integrated psychiatric + SUD treatment outperforms sequential treatment for moderate-to-severe co-occurring conditions.
• ECT has strong evidence for severe treatment-resistant depression; TMS has evidence for moderate-to-severe depression.
• DBT is evidence-based for borderline personality disorder — McLean’s DBT Residential is a flagship program.
• McLean’s research activity contributes to evidence-based practice development; patients may benefit from protocols developed or tested there.
• 90+ days total engagement predicts strongest long-term outcomes — McLean’s 30-day residential is often one phase in a longer continuum.

Person-first language note

This cost page refers to patients as people with substance use disorder, people with co-occurring psychiatric conditions, or people in psychiatric care, never as “addicts” or “abusers.” Psychiatric hospital patients are particularly subject to stigma; language matters for clinical outcomes and reducing treatment-seeking barriers.

Related resources

• Rehab Cost in New Jersey (2026 Guide)
• Does Aetna Cover Rehab?
• Does BCBS of Massachusetts / Anthem Cover Rehab?
• Does Cigna Cover Rehab?
• Treatment Cost Calculator

Crisis resources

For 24/7 SUD placement help in Massachusetts, call the MA Substance Use Helpline at 1-800-327-5050 or dial 988 for the Suicide & Crisis Lifeline. Nationally, call SAMHSA’s National Helpline at 1-800-662-4357. In case of active psychiatric emergency or overdose, call 911 or go to the nearest emergency room.

Compliance note: This page is an editorial cost estimate based on publicly available data. ClearCostRecovery is not affiliated with McLean Hospital or Mass General Brigham. We are not a treatment provider. Cost figures are estimates and may not reflect actual pricing at time of admission.