About Us
Meet our Providers
The Spine Medicine Institute brings together a dedicated group of spine care providers and services to offer multidisciplinary, protocol-driven and conservative management of back and neck pain. Our fellowship-trained providers specialize in all spinal problems, including neck, mid-, and low-back, and treat a variety of spine conditions, including acute and chronic low-back and neck pain, whiplash, degenerative conditions, spinal stenosis, herniated disks, tumors, scoliosis, infections and spinal trauma.
The Spine Medicine Institute was formed in 2006 by a group of spine specialists who sought to improve spine care in the Treasure Valley by providing comprehensive, conservative, convenient care for adults suffering from back and neck pain. Responding to a lack of evidenced-based spine medicine, the group has implemented robust triage and data tracking systems to ensure that patients receive the appropriate level of spine care and that the care is coordinated consistently with an outcome-based, team approach.
Physician Biographies
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Christian G. Zimmerman, MD, MBA, FACS
Dr. Zimmerman is chairman and founder of the Idaho Neurological Institute (INI), adjunct professor of psychology at Boise State University and past chief executive officer of Neuroscience Associates. He has served as a board member for the Idaho State Board of Health and Welfare. Dr. Zimmerman established the INI research facility to focus on nervous system injuries, repair and neuroplasticity and leads its various interdisciplinary research teams. He is co-professor for biology and cognitive neuroscience research students trained at INI. His research projects include a 20-year study of traumatic brain injuries and investigations of spinal injuries, stroke, aneurysms, arterial thrombolytic therapy intervention, neuropathology, CNS tumors, sleep disorders, deep brain stimulation, movement disorders, and five TATRC telemedicine grants.
In his role as INI chairman, he has led numerous workshops to provide educational opportunities for medical professionals and for the general public. Additionally, he leads prevention programs such as Think First, targeting at Idaho’s youth. Dr. Zimmerman is diplomate of the American Board of Neurological Surgery and Pain Management, is a fellow of the American College of Surgeons and Physician Executives, and received his masters of business administration from Auburn University.
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Timothy Floyd, MD, FACS
Dr. Floyd is co-chairman and founding member at the Spine Medicine Institute, former president of the Idaho Orthopedic Society, and chairman-elect of the Department of Orthopedic Surgery at Saint Alphonsus Regional Medical Center. A fellow of the American Academy of Orthopedic Surgeons (AAOS) and a fellow of the American College of Surgeons (FACS), he specializes in disorders and injuries of the spine.
Dr. Floyd received his medical degree from the University of Florida and later received the North American Spine Society Award for a traveling fellowship and was able to work with leading spine surgeons in North America and Europe. He was also a Spine Surgery fellow at the Texas Back Institute and Johns Hopkins University School of Medicine, where he learned to perform complex spinal procedures. Dr. Floyd served as a major in the United States Army and was deployed in a forward surgical team during the invasion phase of Operation Iraqi Freedom. For his services, he was awarded the Bronze Star and the Army Combat Medical Badge. His research interests include spine trauma, anatomy, surgery and bone metabolism.
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Daniel Marsh, MD
Dr. Marsh is medical director and founding member of the Spine Medicine Institute and medical director of Saint Alphonsus Pain Management Center. A member of the American Academy of Physical Medicine and Rehabilitation, (AAPMR), North American Spine Society, (NASS) and Physiatric Association of Spine, Sports and Occupational Rehabilitation (PASSOR), Dr. Marsh specializes in spinal pain treatment and management.
He received his medical degree from the University of Alabama at Birmingham School of Medicine and is a Musculoskeletal Spine and Sports fellow. Dr. Marsh also received a masters degree in Ancient and Modern Hebrew from Jerusalem University College.
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Vicken Garabedian, MD
Dr. Garabedian is a medical director and founding member of the Spine Medicine Institute. Dr. Garabedian attended medical school at Columbia University and completed his residency at the University of California Los Angeles Harbor Medical Center.
He has held academic appointments at Duke University as associate professor of Radiology with special interests of neurobiology, interventional radiology, and advanced MRI and CT techniques.
Dr. Garabedian is certified by the American Board of Radiology and holds an ABR Neuroradiology Certificate of Added Qualifications.
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Rebekah Guy, MD
Dr. Guy is the newest member of the Spine Medicine Institute, having joined in January 2008. Dr. Guy specializes in non-surgical treatment and management of pain related to the spine. She received her medical degree at the University of South Alabama College of Medicine and completed residency training in physical medicine and rehabilitation at the University of Alabama at Birmingham School of Medicine.
She received additional training in interventional spine procedures at Alabama Orthopedic Center in Birmingham.
Staff Biographies
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Nicole M. Lenzi, MS, PA-C
Nicole Lenzi, MS, PA-C, moved to Boise in 1976, when she was 2 years old. She graduated with highest honors from the University of California, Santa Cruz (UCSC) in 1996 with a B.A degree in Molecular, Cellular and Developmental Biology. In 2003 she graduated from the PA program at the University of Medicine and Dentistry of New Jersey (UMDNJ) with a master’s of science degree. Nicole is certified by the National Committee for Certification of Physician Assistants.
Prior to joining the Spine Medicine Institute in September 2007, she worked in a busy emergency room in New Jersey and, upon returning to Boise, she spent two years at a local pain management practice.
About Us
