Head of new U.S. corporate health plan cites surgery as biggest cost

San Diego June 21 (Reuters) - Dr. Atul Gawande, a surgeon who was named this week to head the company being formed by Amazon, Berkshire Hathaway and JPMorgan Chase to trim employee healthcare costs, on Thursday cited surgery as the single biggest U.S. healthcare cost and said there are ways to both cut costs and improve patient care.