Houston is home to the world's largest medical center, Texas Medical Center, which includes 46 institutions. 

M.D. Anderson Cancer Center ranked as the best hospital for oncology in the U.S. by U.S. News and World Report (2008).

More anti-cancer drugs are evaluated at M.D. Anderson Cancer Center than at any other institution in the country. Some 500 clinical trials are currently underway to test drugs and assess new surgical techniques and radiotherapy methods.

Texas Children's Hospital ranked as the sixth best pediatric hospital in the U.S. by U.S News and World Report (2008) and fourth overall by Child magazine (2007).

More heart surgeries are performed in the Texas Medical Center than anywhere else in the world.  Two of the world's most famous heart surgeons, the late Michael E. DeBakey, M.D. and Denton A. Cooley, M.D. were medical leaders in the Texas Medical Center for decades.

Cardiovascular surgeon Bud Frazier, M.D. and his team completed their 1,000th heart transplant in 2006 at the Texas Heart Institute at St. Luke's Episcopal Hospital. It is believed Dr. Frazier has performed more heart transplants than any other surgeon in the world.

St. Luke's Episcopal Hospital was the first hospital in Texas and one of only 33 hospitals nationwide to be designated a Magnet hospital, the highest honor a healthcare organization can receive for nursing services (2001).

Memorial Hermann Hospital is the birthplace of Life Flight™ (1976).