Hempstead Mental Health Services 186 Clinton St The Mental Health Association of Nassau County (MHA) is a not-for-profit membership organization dedicated to improving mental health in our community through advocacy, education, program development and the delivery of direct services. Hempstead NY Mental Health Services Compeer www.mhanc.org Mental Health Association Nassau County MHA New York Not For Profit Non Profit membership organization improving mental health community advocacy education program development delivery direct services 28 services adults children com Mental Health Association Nassau County MHA New York Not For Profit Non Profit membership organization improving mental health community advocacy education program development delivery direct services 28 services adults children com Business Reviews Compeer Testimonials