For a number of reasons, it's a good time to be in the health care business. Here's one reason: technology, naturally, continues to transform the sector. “It’s a great time to be in health care because technology is really going to transform the way we treat patients,” said Dr. Rahul Rastogi, chief operating officer of Kaiser Permanente Northwest’s physician group and an emergency room physician. Rastogi made his prognosis during a panel the Business Journal assembled recently to dissect…