Q: I read that pretty soon there may not be enough doctors. Is this true?A: The number of people over age 65 in the United States is growing rapidly, from 46 million in 2014 to a projected 70 million by 2030. Add to this increasing longevity, and the number who are over 85 is also increasing at a fast pace.In 2015 about half the population had a least one chronic condition, and over a quarter had at least two.