Glenhaven Health Care Center
- Short-term sub-acute medical care with private and semiprivate rooms at facilities in Glen Cove and Port Jefferson.
- http://www.glenhaven.org/

Epilepsy Foundation of Long Island
- Provides education, counseling and residential care. Includes newsletter, information on events, staff, support groups, and donations.
- http://www.epilepsyfoundation.org/longisland/

The Pederson-Krag Center
- Offer out-patient mental health and chemical dependency services.
- http://www.pederson-krag.org/

Long Island Radiology
- Board certified radiologists providing diagnostic radiology services to Greater New York and Long Island.
- http://www.lirad.com/

Central Nassau Guidance & Counseling Services, Inc.
- A voluntary, non-profit, organization that offers a comprehensive network of community based services for people diagnosed with psychiatric disabilities, substance abuse, chemical dependencies and other mental health concerns.
- http://www.centralnassau.org/

Long Island Dietetic Association
- A portal for residents to get more information about healthy living and accurate nutrition information.
- http://www.eatrightli.org/

Last Wager
- A family gambling treatment center dedicated to Pathological and Problem gamblers and their family members to achieve abstinence and healthy behaviors.
- http://www.lastwager.com/

Intercounty Health Association
- Organization of regional nursing homes provides information on choosing a nursing home, publications, and links to resources.
- http://www.intercountyhealth.com/

Long Island Allergy and Asthma Society
- Site contains a searchable listing of allergists, answers to frequently asked questions, and allergy related information.
- http://www.liaas.org/

Long Island Health Network
- Enables eleven locally governed community hospitals to sustain mission effectiveness, improve the health status of its constituents, and provide high-quality efficient health services. Located in Melville, NY.
- http://www.lihn.org/

AED & CPR Training of New York
- Classes for CPR, AED (Automated External Defibrilator), and First Aid are available at your location or six locations on Long Island.
- http://www.aedcpr.com/

Doctor Long Island
- A directory of doctors, dentists and health professional on Long Island in New York.
- http://www.drlongisland.com/