From innovative disruptors to established industry giants, nine healthcare companies made it onto Time's 100 most influential companies list for 2022.

The Booth School of Business at University of Chicago and the Wharton School at University of Pennsylvania tied for the No. 1 spot on U.S. News and World Report's list of best business schools for 2023. 

The District of Columbia has the highest hospital admission rate in the country, while Alaska has the lowest, according to a ranking Kaiser Family Foundation released March 25.

Baltimore-based Johns Hopkins University has the No. 1 nursing school for a master's degree and a doctor of nursing practice degree, according to U.S. News and World Report's list of best nursing schools for 2023, released March 29.

Boston-based Harvard Medical School for the second consecutive year earned the No. 1 spot on U.S. News and World Report's list of best medical schools for research for 2023, released March 29. 

South Dakota has the most hospital beds per 1,000 population of all U.S. states, while Washington has the fewest, according to a ranking Kaiser Family Foundation released March 25.

Louisiana is the most stressed state in America, and Utah is the least, according to an analysis released March 28 by personal finance website WalletHub.  

The U.S. ranks third on the Global Innovation Index, a designation certain states have contributed toward more than others, according to rankings released March 23 by personal finance site WalletHub.

South Dakota has the highest average annual wage for physicians, according to rankings released March 21 by WalletHub, a personal finance website.

The top three states for physicians to practice medicine this year are in the Midwest and the worst are on the East Coast, according to one new ranking.

Ten healthcare companies were ranked among the most innovative in 2021 by the Drucker Institute, according to a ranking published in The Wall Street Journal.

Detroit is the most segregated hospital market in the U.S., according to a ranking from the Lown Institute, a nonpartisan healthcare think tank. 

Ethisphere Institute, a for-profit company that defines and measures corporate ethical standards, has named nine health systems to its 2022 list of "world's most ethical companies."

McAllen, Texas, is the most overweight and obese city in the U.S., according to an analysis by WalletHub, a personal finance website. 

One healthcare company is among the top 10 best-managed businesses in the U.S., according to the annual ranking by the Drucker Institute.

The rate at which people are leaving their places of employment varies across the country, with Alaska leading the nation and New York lagging. 

Healthgrades' "Leading Hospitals in Early COVID Care" list honors 24 hospitals across the U.S. that provided exceptional care while managing an influx of patients during the first wave of the pandemic.

Rochester, Minn.-based Mayo Clinic, Cleveland Clinic and Boston-based Massachusetts General Hospital were named the top three hospitals in the world in 2022 by Newsweek.

California cities dominate the list of happiest cities in the U.S., according to an analysis released March 1 by personal finance website WalletHub. 

Maryland is the state where patients spend the longest time in the emergency department before leaving the hospital, according to research by IT service automation company SysAid.