Why choose Serenity Medical Online? Serenity Medical Evaluations was established in 2008 in California as the longest running medical cannabis clinic in the Riverside and Chino, California, Serenity’s two offices served over 36,000 patients in the past 10 years. Serenity Medical closed its physical locations in February of 2018 and became Serenity Medical Online, where we were able to expand our services and physicians to take care of patients nationally, in New York and CA Patients love our customer care, and Helen of Patient Support is always here weekdays to take care of you and answer your questions