Providers
J Mitchell King, PA-C
J Mitchell King, PA-C, is a board-certified Physician Assistant dedicated to providing compassionate, patient-centered care. He earned his Master of Physician Assistant Studies from Samuel Merritt University after completing his undergraduate degree in Psychology at the University of Southern California.
Mitchell has experience in orthopedic surgery and pain management, with particular clinical interests in interventional procedures. He believes in taking time to listen carefully to his patients and working collaboratively to develop individualized treatment plans that prioritize both evidence-based medicine and quality of life. Outside of the clinic, Mitchell enjoys staying active and spending time with his family.
Dr. Autumn Phillips, Psy.D
Dr. Autumn Phillips, Psy.D., is a licensed clinical psychologist who has specialized in pain management for nearly 20 years. She has worked closely with Dr. Steiner for many years, coordinating evidence-based treatments to improve patient outcomes.
Dr. Phillips understands that pain often extends beyond physical sensation, encompassing emotional and psychological suffering that can impact many areas of life. If you are referred for a consultation, you will participate in a one-time appointment designed to assess your pain and its effects on your daily functioning. Following the evaluation, Dr. Steiner and her team will receive comprehensive documentation to support treatment planning and ensure access to all appropriate care options, which may include opioid therapy when clinically indicated.
Treatment recommendations are developed collaboratively and discussed thoroughly with each patient.
“Documentation is key. I strive to ensure every patient has a positive experience while also providing the thorough documentation necessary to meet medical guidelines.” — Dr. Autumn Phillips
Dr. Phillips earned her doctorate from the California School of Professional Psychology at Alliant International University in 2008. She completed her postdoctoral training at Scripps Clinic and, since becoming licensed, has worked in both hospital and clinical settings delivering patient-centered care.
Dr. Santiago Osorio
Dr. Santiago Osorio, PT, DPT, OCS, CKTP is a physical therapist with over 14 years of experience in outpatient orthopedic rehabilitation. He specializes in chronic pain, spine care, joint dysfunction, post‑operative recovery, regenerative therapies, post‑concussion treatment, multiple sclerosis, and stroke rehabilitation.
He earned his biology degree from Ramapo College and his Doctorate in Physical Therapy from Rutgers University. Dr. Osorio is board‑certified in orthopedics and holds advanced certifications in shockwave therapy, MLS 6, Blood Flow Restriction Training, 3D MAPS, and Kinesio Taping. He is also pursuing manual therapy certification through the University of St. Augustine.
His three years at Naval Hospital Camp Pendleton strengthened his diagnostic and palpation skills, allowing him to identify subtle tissue abnormalities—skills that once helped prompt the early detection of a patient’s breast cancer.
Outside the clinic, he enjoys working out, spending time with his wife, and hanging out with his dog.
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