A Stem Cell Doctor in Santa Monica that can help you with Regenerative Orthopedics. That’s what you’ll find here at OrthoRegen and Peter A. Fields, MD, DC. Our Gold Standard in Stem Cell Therapy is your non-surgical alternative to joint replacement. For an experienced regenerative medicine clinic with success in repairing joints with stem cells, prp, and prolotherapy, call (310) 453-1234.