New Patients Start Getting Healthy in Easy Steps Please choose your practitioner Dr. Steven Shaffer, D.C. (Dr. Shaffer’s patient’s click here) Keverne Collison, C.H.P, C.N (Keverne Collison’s client’s click here) If you're a new client and do not know which practitioner to choose, Please feel free to contact us at (714) 540-0555 and we will be happy to assist you.