• In 2019
    • Nearly 1 in 5 adults live with a mental illness (51.5 million in 2019 – 20.6% of all US adults). *
    • There were an estimated 5.2% of US adults (13.1 million people) living with a serious mental illness (SMI)
      • SMI is defined as a mental, behavioral or emotional disorder resulting in serious functional impairment that interferes with or limits on of more major life activity
    • 3.8% of U.S. adults experienced a co-occurring substance use disorder and mental illness (9.5 million people)**


MHANC offers effective, evidence-based and state-of-the-art interventions can improve the quality of life for these individuals, through Housing, Day Programs and Support Services and/or Groups for Wellness.


*Source: National Institute of Mental Health

**Source: SAMHSA


  • In 2019*
    • 7.4% (20.4 million people) aged 12 or older had a substance use disorder
      • 5.3% (14.5 million people) aged 12 or older reported having a dependence on alcohol
      • 3.0% (8.3 million people) had at least one illicit drug use disorder


*Source: SAMHSA


  • In 2019 the Long Island Coalition for the Homeless reported there were:
    • 9,687 total people experiencing homelessness
      • 13,692 single adults
      • 6,005 people in households of families with children
  • 20.5% of people experiencing homelessness in the U.S. have a serious mental health condition
  • 37% of adults incarcerated in the state and federal prison system have a diagnosed mental illness


MHANC offers Housing with Support Services


  • 50% of all mental disorders begin by age 14 and three-quarters by age 24
  • ADHD, behavior problems, anxiety, and depression are the most commonly diagnosed mental disorders in children*
    • 9.4% of children aged 2-17 years (approximately 6.1 million) have received an ADHD diagnosis
    • 7.4% of children aged 3-17 years (approximately 4.5 million) have a diagnosed behavior problem
    • 7.1% of children aged 3-17 years (approximately 4.4 million) have diagnosed anxiety
    • 3.2% of children aged 3-17 years (approximately 1.9 million) have diagnosed depression
  • Approximately 70% of youth in the juvenile justice system have a diagnosed mental illness


MHANC manages the Crisis Respite Beds for Nassau County and is involved in Hospital Discharge planning. We are also an approved vendor for HCBS services.


* Source: CDC


  • 15% of older adults are impacted by behavioral health problems
  • Of the 49.2 million adults over the age of 65 years , 1.4 to 4.8 % suffer from serious mental illnesses (SMIs)
  • Anxiety disorders affect approximately 3.8% of seniors worldwide
  • Approximately 35% of older adults reports some type of disability (i.e., difficulty in hearing, vision, cognition, ambulation, self-care, or independent living)



    • The number of Veterans with PTSD varies by service era:
      • Operations Iraqi Freedom (OIF) and Enduring Freedom (OEF): 11-20% have PTSD in a given year.
      • Gulf War (Desert Storm): About 12% have PTSD in a given year
      • Vietnam War: It is estimated that about 30% of Vietnam Veterans have had PTSD in their lifetime.
    • Compared with similar individuals in the general population, Veterans are:
      • more likely to have PTSD
      • 2–4 times more likely to have major depression
    • Approximately 52,000 veterans lives in Nassau County


MHANC integrates clinical and/or holistic treatments to rehabilitate and support veterans through our Vet2Vet and Veterans Health Alliance Programs




Nearly 1 in 5 adults, more than 18%, in the U.S. experience mental illness in a given year.

5-6% of American adults have a serious mental illness; about 2% have disorders that are long-term and disabling, contributing to very high rates of unemployment and poor living conditions.

More than 450 million people around the world live with mental illnesses.

20-25% of Americans have a diagnosable mental and/or substance use disorder in any given year: 6.8 million people with an addiction have a mental illness.

There were approximately 20.6 million people in the United States over the age of 12 with an addiction in 2011, excluding tobacco.

Over 3 million people in 2011 received treatment for their addiction.

The Long Island Coalition estimated that there are approximately 3,000 homeless people in Nassau County and 64 of them are living on the streets.

30-40% of homeless adults and 15-20% of people in jails and prisons in the United States have a serious mental illness. This is often accompanied by substance abuse problems in both these populations.

As many as 10% of children have a serious emotional disturbance, contributing to school failure and other serious problems.

Just over 20 percent of children, either currently or at some point during their life, have had a seriously debilitating mental disorder.

It is estimated that 1 in 68 children in the US have autism.

As the number of older adults doubles over the next two decades so will the number of older adults with mental disordersThis includes 5.5 million older adults who currently have Alzheimer’s disorder or other dementia. Without advances in prevention, this will rise to 11 million older adults with dementia by 2050.

11 to 20% of veterans of the Iraq and Afghanistan wars (Operation Iraqi Freedom and Operation Enduring Freedom) have been diagnosed with PTSD.

30% of soldiers develop mental problems within 3 to 4 months of being home.

Depression and post-traumatic stress disorder (aka PTSD, an anxiety disorder that follows experiencing a traumatic event) are the most common mental health problems faced by returning troops.