Nope, nope, and nope. Unless it’s your nearest emergency room, you’ve probably never heard of the facility. Same goes for most of the 50 hospitals deemed the most expensive by a new study from Johns Hopkins Bloomberg School of Public Health and Washington and Lee University. (Health care isn’t the only budget killer. Keep an eye out for these 10 Ways You’re Secretly Losing Money.) Researchers analyzed hospitals’ public financial reports from 2012, the most recent year available. They compared the amount that hospitals charged patients to what the government considers the actual cost of providing care. The 50 most expensive hospitals mark up their prices by an average of 1,000%, the researchers found. That’s compared to an average of 340% for all hospitals. Why? “Because they can,” says study coauthor Gerard Anderson, PhD, director of the Center for Hospital Finance and Management at Johns Hopkins. It’s nearly impossible to price shop for health care, so hospitals can basically charge whatever they want, says study coauthor Ge Bai, PhD, an accounting professor at Washington and Lee. (Except in Maryland and West Virginia, where the states regulate hospital pricing.) MORE: Unseal Your Medical Records Of course, if you have health insurance, you usually won’t have to pay the full price for your hospital stay. Especially if you’re covered by Medicare or Medicaid, in which case the markups typically won’t affect you at all, the researchers say. If you have private health insurance, your insurance company will negotiate lower prices with in-network hospitals (and cover part of your treatment). But even so, the sky-high costs may trickle down to you by making insurance coverage more expensive to purchase, the researchers say. And if you go to an out-of-network hospital, you may have to pay most of the marked-up price. The only thing you can do to avoid getting overcharged: Make sure your hospital is in your insurance company’s network before every visit, Bai says. You may have to call your insurance company or the hospital to find out. (Break the endless cycle of chronic pain and depression with this cutting edge solution from integrative medicine specialist Gary Kaplan, DO, in his book Total Recovery.) In fact, if you have a choice of multiple local ERs, take the time right now to find out which ones are in-network—but in a true emergency, just go to the nearest one. Your life is worth more than a few hundred bucks. MORE: Do-It-Yourself Medical Tests And now, the full list of the 50 most overpriced hospitals, as determined by the study. 1.  North Okaloosa Medical Center (FL) 2.  Carepoint Health-Bayonne Hospital (NJ) 3.  Bayfront Health Brooksville (FL) 4.  Paul B Hall Regional Medical Center (KY) 5.  Chestnut Hill Hospital (PA) 6.  Gadsden Regional Medical Center (AL) 7.  Heart of Florida Regional Medical Center (FL) 8.  Orange Park Medical Center (FL) 9.  Western Arizona Regional Medical Center (AZ) 10.  Oak Hill Hospital (FL) 11.  Texas General Hospital (TX) 12.  Fort Walton Beach Medical Center (FL) 13.  Easton Hospital (PA) 14.  Brookwood Medical Center (AL) 15.  National Park Medical Center (AR) 16.  St. Petersburg General Hospital (FL) 17.  Crozer Chester Medical Center (PA) MORE: The Truth About Medical Marketing Claims 18.  Riverview Regional Medical Center (AL) 19.  Regional Hospital of Jackson (TN) 20.  Sebastian River Medical Center (FL) 21.  Brandywine Hospital (PA) 22.  Osceola Regional Medical Center (FL) 23.  Decatur Morgan Hospital - Parkway Campus (AL) 24.  Medical Center of Southeastern Oklahoma (OK) 25.  Gulf Coast Medical Center (FL) 26.  South Bay Hospital (FL) 27.  Fawcett Memorial Hospital (FL) 28.  North Florida Regional Medical Center (FL) 29.  Doctors Hospital of Manteca (CA) 30.  Doctors Medical Center (CA) 31.  Lawnwood Regional Medical Center & Heart Institute (FL) 32.  Lakeway Regional Hospital (TN) 33.  Brandon Regional Hospital (FL) 34.  Hahnemann University Hospital (PA) 35.  Phoenixville Hospital (PA) 36.  Stringfellow Memorial Hospital (AL) MORE: Five Medical Tests You Don’t Need 37.  Lehigh Regional Medical Center (FL) 38.  Southside Regional Medical Center (VA) 39.  Twin Cities Hospital (FL) 40.  Olympia Medical Center (CA) 41.  Springs Memorial Hospital (SC) 42.  Regional Medical Center Bayonet Point (FL) 43.  Dallas Regional Medical Center (TX) 44.  Laredo Medical Center (TX) 45.  Bayfront Health Dade City (FL) 46.  Pottstown Memorial Medical Center (PA) 47.  Dyersburg Regional Medical Center (TN) 48.  South Texas Health System (TX) 49.  Kendall Regional Medical Center (FL) 50.  Lake Granbury Medical Center (TX) The article The 50 Most Overpriced Hospitals in the United States originally ran on MensHealth.com.