Our Providers

Carl Shin, MD

Dr. Shin received his Doctor of Medicine degree from Loma Linda University in 1995. He also completed his residency in Physical Medicine and Rehabilitation at Loma Linda University Medical Center.

Dr. Shin’s Fellowship in Interventional Spine was completed at University of Pennsylvania under Dr. Curtis Slipman, where he was published in several prominent journals, including the American Journal of Physical Medicine and Rehabilitation.

In July of 2000, he obtained his Certification from the American Board of Physical Medicine and Rehabilitation and established his private practice shortly thereafter in Interventional Spine, Electromyography, and Pain Management. He is the current Chief Medical Officer of Center for Interdisciplinary Spine, a managed care firm that provides workers’ compensation utilization review services to self-insured employers.

Brian A. Kim, MD

Dr. Kim joined the CIS team in July, 2018. He completed his pain management fellowship at the Duke University Health System and is our chronic pain physician. He is fully committed to providing compassionate multidisciplinary care to the chronic pain population in the Greater Sacramento region.

He has experience with multimodal pain management including medication management, traditional fluoroscopic injections, ultrasound-guided procedures, spinal cord/peripheral nerve stimulators, and kyphoplasty.

Dr. Kim served as a non-commissioned officer in the United States Marine Corps and has participated in humanitarian and peacekeeping missions overseas. After his military service, he went on to graduate summa cum laude and with honors from George Mason University, and received his medical degree from George Washington University. He then completed an anesthesiology residency, serving as academic/education chief resident, at the University of California, San Diego, learning under some of the most renowned professors in both anesthesiology and pain medicine. He went on to complete his medical training at an elite pain management fellowship at Duke University. Additionally, he has authored multiple book chapters and has presented at numerous national and regional conferences.

Tim Yoon, MD

Dr. Yoon graduated from Loma Linda University where he completed medical school and his post graduate training. Dr. Yoon is Board Certified in both Physical & Rehabilitation Medicine and Pain Medicine.

His goal is to promote the public’s awareness of physical medicine and rehabilitation for those suffering from pain.

In his spare time, Dr. Yoon enjoys music and watching team sports.

Rachel Gonzales, PAC

Rachel Gonzales graduated from the University of Southern California School of Medicine, 1997. Soon after, she moved to Sacramento and has been caring for patients in the area ever since. She has over 15 years experience in Emergency Medicine and Internal Medicine prior to joining CIS in 2012.

Married with 4 daughters, Rachel enjoys hiking, camping, swimming, traveling and all the outdoor activities the Sierra Foothills have to offer.

Jason Packer, DC, PAC

Jason Packer DC, PA-C graduated from Palmer College of Chiropractic West in San Jose California in 2002.

He practiced as a Chiropractor in the Sacramento area for nine years. Wanting to further his education, he graduated from UC Davis FNP/PA school in 2013. Dr. Packer briefly worked in Orthopedic Surgery before specializing in pain management at CIS.

Dr. Packer enjoys spending time with his wife and four children. In the summertime he likes to water ski, and snow ski in the winter.

Lisa Cederbaum, ANP

Lisa Cederbaum is a Nurse Practitioner with over 15 years of experience, mostly in tertiary settings with specialties including Oncology, Critical Care, Cardiac Surgery, and Chronic Pain. She also has over 20 years experience as a Yoga Practitioner.

Ms. Cederbaum hopes of inspiring health by bringing Western medicine and Eastern Philosophy together through treatment of chronic pain through Western practice and Eastern practices of yoga, yogic philosophy and meditation.

Supporting Staff

Ken Shoji, DC

Dr. Shoji graduated Magna Cum, Laude at Life Chiropractic College West in 1993.

With over 20 years of experience in the California Workers Compensation system, Dr. Shoji has wealth of knowledge necessary to ensure patients receive the best treatment available within the scope of the current guidelines.

Dr. Shoji supports the organization through record reviews and provides our team with weekly quality assurance reviews and tips.

During his off time, Dr. Shoji enjoys hunting with his dog JoJo and is eager to learn more about angling.