The travel authorization enables the patient to obtain appropriate medical treatment in the USA without waiting for the issuance of a visa. The USA ESTA application process helps get immediate approval for their visit and ensures that they can access hospitals, specialist treatments, and consulting services on time.
What types of medical treatments are allowed under the USA ESTA program?
USA ESTA will allow you to get short-term, elective, or non-emergency medical services which can be done completely within the allowable 90 days duration. These types of medical services include consultations, diagnoses, surgeries, or even outpatient procedures. But you have to provide proof that you have enough funds to cover all your hospitalizations, together with an official letter written by your doctor stating your medical conditions and the treatment being done. Medical ESTA for USA should never be used for any long-term clinical trials or childbirths.
Can ESTA be extended if medical treatment takes longer than expected?

An ESTA stay cannot be formally extended, but if a medical emergency prevents your timely departure, you can request a temporary relief option called "Satisfactory Departure." Granted at the discretion of U.S. Citizenship and Immigration Services (USCIS) or Customs and Border Protection (CBP), this safety net provides an additional 30-day window to leave the United States. To qualify, you must request this period before your initial 90-day limit expires and provide clear documentation of the medical situation.
How do US hospitals handle international patients arriving on ESTA?

According to the EMTALA, the hospital is mandated by the Federal Law to perform the necessary screenings and stabilization on any foreigner who seeks treatment in case of an emergency, regardless of their status of having an ESTA visa, their citizenship, or whether they are able to pay for their medical expenses. Nonetheless, the ESTA doesn’t cover one's medical needs. If there isn’t an emergency situation, hospitals will treat them as cash-paying patients.