Dianne Williams said she lost weight and lowered her blood pressure thanks to quarterly doctor appointments, monthly phone calls with a nurse, and a blood pressure cuff she uses at home that transmits data to her care team. “It’s good to have somebody talk to you and tell you what your progress is like. And she’s a very nice person,” Williams said of her nurse. Williams, who lives in rural Georgia, said these services — referred to as remote patient monitoring — encourage her to take her medication and inspired her to revamp her diet and exercise. But many Medicare patients, especiall...