Patient Guide 
Key information for your stay

Hospital resources

Hospital resources

Find out more about our services

Alcohol & drug/mental health services

Mather Hospital’s Behavioral Health Services offers a range of inpatient and outpatient programs to help adults and adolescents with mental health disorders, eating disorders and substance use disorders. 


Inpatient Adult Psychiatric Unit:

(631) 476-2830


Inpatient Adolescent Psychiatric Unit:

(631) 476-2775


Chemical Dependency Clinic:

(631) 331-8200


Outpatient Mental Health Clinic:

(631) 729-2140


Outpatient Psychiatric Physician Services:

(631) 928-3122


Eating Disorders Program:

(631) 473-3877, ext. 4853


Outpatient Partial Hospitalization for Adolescents and Adults:

(631) 473-3877


Support Groups

The following support groups are offered at Mather Hospital:


  • Adult-Infant-Child CPR/Basic Life Support
  • Alcoholics Anonymous
  • Bereavement
  • Chemical Dependency
  • Diabetes Management & Prevention
  • Eating Disorders
  • Emotions Anonymous
  • Live, Love and Laugh Again (Breast Cancer Support Group)
  • Lymphedema
  • Medicare Counseling
  • Newly Diagnosed Women with Breast Cancer
  • Overeaters Anonymous
  • Reach to Recovery (Breast Cancer Support Group)
  • Smoking Cessation
  • Strength for Life


Visit matherhospital.org/supportgroups for meeting times and locations.

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