But for now, the most popular destinations for Americans who travel abroad for health care are Canada, the United Kingdom, Israel, Singapore and Costa Rica, according to a study by the Medical Tourism Association. It found that some of the most common procedures included spinal, weight-loss and cosmetic surgery, and cancer treatment.

Ms. Agrawal said she had been speaking to a Cuban health care facility for months, anticipating an eventual opening between the two countries.

“In terms of being a viable destination, what was holding it back, of course, was the travel restrictions and embargo,” she said of Cuba. “Now, with some of that opening up, they’ve got extremely good health care. They’re very close in terms of travel.”

Unlike Americans, Canadians do not have travel restrictions, and Cuba is a popular vacation destination; many Canadians travel there for health care as well.