Direct Primary Care with a holistic, comfortable atmosphere. Dr. Lok is accepting patients at her direct primary care clinic: RiverRock Clinic. You pay $100 a month and get direct access to Dr. Lok. Dr. Lok is a family doctor who provides a more natural/holistic approach to treating medical problems. Known for providing a comfortable atmosphere in her clinic, she enjoys serving all types of patients from newborns to older adults to end-of-life care. LGBTQ, transgender folks, people who struggle with addition and mental health are welcome.