WHEN Ben Schreiner, a 62-year-old retired Bank of America executive, found out last year he would need surgery for a double hernia, he started evaluating possible doctors and hospitals. But he didn't look into the medical center in his hometown, Camden, S.C., or the bigger hospitals in nearby Columbia. Instead, his search led him to consider surgery in such far-flung places as Ireland, Thailand and Turkey.

Ultimately he decided on San José, Costa Rica, where just a week or so after the outpatient procedure and initial recovery, he and his wife were sightseeing throughout the country, then relaxing at a lush resort. He was home four weeks later, with no complications.

Mr. Schreiner is what's known in the health care world as a "medical tourist." No longer covered under his former employer's insurance and too young to qualify for Medicare, Mr. Schreiner has a private health insurance policy with a steep $10,000 deductible. Not wanting to spend all of that on the $14,000 his operation would have cost stateside, he paid only $3,900 in hospital and doctor’s bills in Costa Rica.

"I didn't have to fork over my entire deductible," Mr. Schreiner said. "What's more, they bent over backwards there to take care of me — no waiting, a friendly staff, everyone spoke English."