Agency for Healthcare Research and Quality
Supports research designed to improve the quality of health care, reduce its cost, and broaden access to essential services. Provides resources on quality assessment, clinical, consumer health, and children's health.

The Combined Health Information Database (CHID)
A bibliographic database produced by health-related agencies of the Federal Government. This database provides titles, abstracts, and availability information for health information and health education resources. At present, CHID covers the following topics:

• AIDS, STD and TB Education
• Alzheimer's Disease
• Complementary and Alternative Medicine
• Deafness and Communication Disorders
• Diabetes
• Digestive Diseases
• Kidney and Urologic Diseases
• Maternal and Child Health
• Medical Genetics and Rare Disorders
• Weight Control

Department of Health and Human Services
Responsible for protecting the health of all Americans and providing essential human services.  It's Agencies include:

 The Administration on Aging
Provides home and community-based services to millions of our nation’s vulnerable and hard-to-reach older persons through the programs funded under the Older Americans Act.  Among these services are nutrition (such as home delivered meals or meals served in congregate settings), transportation, legal assistance and health promotion counseling and training.  Recently through AoA’s new National Family Caregiver Support Program, the agency is focusing on the tremendous challenges of those caring for family members who are chronically ill or who have disabilities.

Centers for Disease Control and Prevention
The lead federal agency for protecting the health and safety of people - at home and abroad, providing credible information to enhance health decisions, and promoting health through strong partnerships. CDC serves as the national focus for developing and applying disease prevention and control, environmental health, and health promotion and education activities designed to improve the health of the people of the United States. 

• Mortality And Morbidity Weekly Report
  The Morbidity and Mortality Weekly Report (MMWR) Series is prepared by the Centers for Disease Control and Prevention (CDC).
• National Center for Chronic Disease Prevention and Health Promotion
  Features specific programs on women's or reproductive health, such as Breast and Cervical Cancer (Disease Control and Prevention), Youth Risk Behavior Survey (Surveillance), and Women's Reproductive Health and International Assistance in Reproductive Health (Maternal and Child Health).
• National Center for Health Statistics 
  The Federal Government's principal vital and health statistics agency. NCHS data systems include data on vital events as well as information on health status, lifestyle and exposure to unhealthy influences, the onset and diagnosis of illness and disability, and the use of health care.
• National Center for HIV, STD, and TB Prevention 
  Responsible for public health surveillance, prevention research, and programs to prevent and control HIV infection and AIDS, other sexually transmitted diseases, and tuberculosis.

Centers for Medicare and Medicaid Services
Runs the Medicare and Medicaid programs. With the Health Resources and Services Administration,  runs the State Children's Health Insurance Program (SCHIP), a program that is expected to cover many of the approximately 10 million uninsured children in the United States.  With the Departments of Labor and Treasury, helps millions of Americans and small companies get and keep health insurance coverage, and helps eliminate discrimination based on health status for people buying health insurance. Additional responsibilities include regulating all laboratory testing (except research) performed on humans in the United States.

Food and Drug Administration
Promotes and protects the public health by helping safe and effective products reach the market in a timely way, and monitoring products for continued safety after they are in use.

Health Resources and Services Administration
Assures the availability of quality health care to low income, uninsured, isolated, vulnerable and special needs populations and meets their unique health care needs.  HRSA's mission is to improve and expand access to quality health care for all.

Bureau of Primary Health Care
Provides primary care to underserved populations. 

Maternal and Child Health Bureau
Provides leadership, partnership, and resources to advance the health of infants, children, and adolescents--including families with low income levels, those with diverse racial and ethnic heritages, and those living in rural or isolated areas without access to care.

Federal Office of Rural Health Policy
Operates out of the Health Resources and Services Administration and seeks solutions to rural America's health care problems. 

National Institutes of Health 
Federal focal point for medical research in the U.S.  NIH's  mission is to uncover new knowledge that will lead to better health for everyone. NIH works toward that mission by conducting research in its own laboratories; supporting the research of non-Federal scientists in universities, medical schools, hospitals, and research institutions throughout the country and abroad; helping in the training of research investigators; and fostering communication of medical information. 

• MedlinePlus Health Information
  A goldmine of good health information from the world's largest medical library, the National Library of Medicine.  MEDLINEplus has extensive information from the National Institutes of Health and other trusted sources on about 500 diseases and conditions. There are also lists of hospitals and physicians, a medical encyclopedia and dictionaries, health information in Spanish, extensive information on prescription and nonprescription drugs, health information from the media, and links to thousands of clinical trials.

Office of Disease Prevention and Health Promotion
Works to strengthen disease prevention and health promotion priorities.

Office of Minority Health
Advises the Secretary and the Office of Public Health and Science on public health issues affecting American Indians and Alaska Natives, Asian Americans, Native Hawaiians and Other Pacific Islanders, Blacks/African Americans, and Hispanics/ Latinos. The mission of OMH is to improve the health of racial and ethnic populations through the development of effective health policies and programs that help to eliminate disparities in health.

Substance Abuse and Mental Health Services 
The Federal agency charged with improving the quality and availability of prevention, treatment, and rehabilitative services in order to reduce illness, death, disability, and cost to society resulting from substance abuse and mental illnesses.

healthfinder 
A consumer health and human services information gateway. Part of the Department of Health and Human Services.

Health.Gov
A portal to the Web sites of a number of multi-agency health initiatives and activities of the U.S. Department of Health and Human Services and other Federal departments and agencies. 

The White House Social Statistics Briefing Room 
Provides health care statistics, including vital statistics, uses of health services, and prevention and risk.