See here for tuition rates. Note that CHPR is a 45 unit masters program which most students complete in four academic quarters: autumn, winter, and spring, with one unit in summer to complete their thesis. CHPR is in the regular Graduate program category, not School of Medicine category, which is the (more expensive) MD program rates.
For a holistic Stanford graduate school budget estimator which includes room, board, fees, and expenses, see here.
NOTE: CHPR is unfunded and does not have scholarships, fellowships or student employment such as TAships or CAships for its students. Most CHPR students fund their program through a combination of loans, savings, outside scholarships, and part-time jobs. We urge all applicants to think carefully about how they will fund their masters program before accepting an offer.