RefSeek Notice: A new and expanded directory of medical information web sites is now available. Please follow the link above to OpenMD. You'll also find additional directory pages on topics such as pediatrics, doctor reviews, etc. If you previously bookmarked this page, please update your bookmarks to point to the page above or OpenMD's main health directory index.

Health & Medical Sites

RefSeek's guide to the 25 best online resources for medical reference. With few exceptions the sites below are available for free and without registration.

  • American Cancer Society
    Fighting cancer with research, education, patient care, and rehabilitation.
  • CDC
    Fights disease and supports communities and citizens to do the same.
  • Department of Health and Human Services
    Principal agency for protecting the health of U.S. citizens.
    Easy-to-read drug information and useful online tools including a pill identifier.
  • Epocrates
    Point of care diagnostic and treatment information for doctors. Subscription required.
  • Everyday Health
    Personalized health advice, tools, and communities.
  • Hardin MD
    Thousands of links to high quality health information and photos.
  • Healthline
    Condition and procedure topics, symptom checker, and pill identifier.
  • Mayo Clinic
    Award-winning medical and health information for healthy living.
  • Medi Lexicon
    Search over 200,000 medical terms, ICD-10 codes, hospitals, and more.
  • MedicineNet
    Authoritative medical information for consumers. - Also see: Med Terms
  • Medline Plus
    Diseases, symptoms, injuries, and more with photographs and illustrations.
  • Medpage Today
    Latest clinical and policy coverage geared towards health care professionals.
  • Medscape
    Medical information for specialists, physicians, and industry professionals.
  • Merck Manuals
    The world's most widely-used medical guides, available online.
  • NIH
    Focal point for medical research in the United States.
  • OpenMD
    Health search engine spanning thousands of medical organizations and government databases.
    openmd - Also see: Health Site Directory
  • RxList
    Drug information for consumers and medical health professionals.
  • UpToDate
    Evidence-based clinical decision support resource for health care providers.
  • WebMD
    Thousands of medical entries from abdomen to zygote.

Doctor Reviews

  • CareDash
    Provider ratings and patient reviews. Make informed decisions about your health.
  • Castle Connoly
    Top doctors based on peer nomination and review by a physician-directed research team.
  • Health Grades
    Details on provider's experience, patient satisfaction and hospital quality.
  • U.S. News Health
    Directory includes 750,000+ physicians and surgeons.
  • Vitals
    Find, rate or check up on a doctor in the United States. Search by location, specialty or ailment.
  • Zocdoc
    Find a doctor and book an appointment. Read verified doctor reviews and ratings by patients.

Medical Journals

  • BioMed Central
    Provides open access to hundreds of peer-reviewed medical journals.
  • Free Medical Journals
    Site that promotes and links to free full-text medical journals and resources. - Also see: Free Medical Books
  • JAMA
    The most widely circulated peer-reviewed medical journal in the world.
  • New England Journal of Medicine
    Publishes new medical research findings, review articles, and editorial opinion.
  • PubMed Central
    Free digital archive of biomedical and life sciences journal literature.

Child and Teen Health

  • Girls Health
    Reliable, supportive health information for girls ages 10 to 16.
  • Partnership for a Drug Free America
    Answers and guidance on drug abuse, prevention, and treatment.
  • Pregnancy Helpline
    Education and information for those experiencing pregnancy related issues.
  • Teen Health
    Honest information and advice about health, relationships, and growing up.