- American Board of Medical Specialties
- American Cancer Society
- American Dental Directory
- American Diabetes Association
- American Hospital Directory
- American Lyme Disease Foundation
- Asbestos/Mesothelioma Cancer Resource Center
- Best Doctors: Physicians worldwide tell what doctors they would go to for treatment in their specialties.
- Best Hospitals: America's top 205 medical centers in 17 specialties.
- Centers for Disease Control - CDC
- Clinical trials: Updated information on federally and privately supported clinical research,and who may participate.
- DoctorProfile: New York State Physician Profile website - profiles of all licensed doctors of medicine and osteopathy who are registered to practice medicine in New York State.
- EatRight through The Academy of Nutrition and Dietetics
- Healthfinder: a service of the U.S. Dept. of Health and Human Services.
- Mayo Clinic.com: Medical information and answers to readers' questions.
- Medicare
- MedicineNet: Information on diseases, procedures and pharmaceuticals.
- Medline Plus: Health information from the National Library of Medicine and the National Institutes of Health for the layman.
- Merck Manual, Home edition: Searchable textbook of medicine
- National Center for Health Statistics
- National Eye Institute: Information on diseases of the eye.
- National Cancer Institute
- National Institutes of Health
- National Center for Complementary and Integrative Health (NCCIH)
- National Institute of Mental Health
- National Library of Medicine
- New York State Dept. of Health: Includes physician discipline, professional misconduct.
- NY State Online License Verification: Select a profession and search for licensee by name or license.
- New York State Professional Misconduct Website
- PubMed: A service of the National Library of Medicine, links go to many full text articles.
- RxList
- Suffolk County Department of Health
- Suffolk County Psychological Association: Find a psychologist and more.
- Tufts University Nutrition Navigator
- West Nile Virus: Information and links from the Centers for Disease Control.
- World Health Organization
