Samsung Health is a proprietary program that reads and interprets sensor data on the watch. There is not public API for this at this time. You would have to be a Samsung Health Member in order to access such data. The partners services are not open for application at this time.
Bottom line is there should be a way to do this but only for partners and I’m not sure what level of partner this needs to be. If you open a support request they may be able to help or help you find a partner that will develop this for you.
Ron
Samsung Developer Program