The first statement is largely true, and the second one is largely false.
They hospitals can NOT "turn you away and leave you to die", but it only applies to (1) emergency conditions and (2) Hospitals with ER and (3) hospitals that get federal money, including via medicaid etc....
Emergency Medical Treatment and Active Labor Act (EMTALA)
In 1986, the Emergency Medical Treatment and Active Labor Act known as EMTALA (Section 1867 (a) of the Social Security Act) and sometimes referred to as the "Patient Anti-Dumping Act" was passed by Congress and signed into law by President Reagan. The purpose of the Act was to ensure that acutely ill patients who are uninsured or underinsured receive appropriate emergency care and to prevent hospitals from refusing to treat certain populations of patients who present to the emergency department. Although EMTALA was passed to protect those who lack financial resources or medical insurance, it applies to all seeking care from a hospital's emergency department in all states and territories of the United States. However, not all hospitals have obligations under EMTALA. Only hospitals that accept federal funds from the Centers for Medicare and Medicaid (CMS), a branch of the Department of Health and Human Services (HHS), are subject to civil liability under the Act. The CMS and the Office of the Inspector General (OIG) enforce EMTALA. The OIG can fine Hospitals $50,000 per violation ($25,000 for hospitals with less than 100 beds) and possibly terminate their Medicare provider agreement. Individual physicians also may receive a fine up to $50,000 and be excluded from future Medicare funding.
The "duty to treat" that EMTALA imposes on hospitals with emergency rooms that accept Medicare and Medicaid reimbursement begins when a patient comes to the emergency department seeking help. In addition to the emergency department, EMTALA also applies to other properties owned by a hospital, such as ambulances. To comply with EMTALA, the participating hospitals must provide within its capabilities a nondiscriminatory medical screening examination (MSE) to determine if the patient has an emergency medical condition. An emergency medical condition is defined as "a condition manifesting itself by acute symptoms of sufficient severity, such as severe pain, for which the lack of immediate medical attention could reasonably be expected to result in placing the patient in serious jeopardy, serious impairment to bodily functions, or serious dysfunction of any bodily organ or part." [Smith, JM, "EMTALA Basics: What Medical Professionals Need to Know," Journal of the National Medical Association 94,6 (2002): 426-429].