Melissa R Christiansen specializes in nurse practitioner in Riverside area. Melissa R Christiansen, NP has a medical practice at 4646 Brockton Ave, Suite # 203, Riverside CA, and has over 12 years of experience in the field of medicine. She graduated from her medical school with her medical degree in 2005. Christiansen is accepting new patients at her medical office and practice location in Riverside, California.