About Us

Oleg Maksimov, MD

Dr. Maksimov is President of Columbia Pain and Spine Institute. His primary focus is to provide high quality diagnosis and treatment of painful spinal conditions, pain relief and functional restoration. Dr. Maksimov is a board certified physician by the American Board of Physical Medicine and Rehabilitation. He completed his physiatry residency at the University of Rochester, Rochester, NY. He continued sub-specialty studies at the prestigious University of Pennsylvania Interventional Spine fellowship. Dr. Maksimov practices evidence based algorithms using physical modalities, medications and minimally invasive spine procedures for diagnosing and treating back and neck pain disorders.

Adrian Anthony, MD

Dr. Anthony is a pain physician with Columbia Pain and Spine Institute. While he is comfortable treating a broad range of pain conditions, he also has a special interest in treating pain related to dysfunctional nerves. Originally from the Pacific Northwest, he went to medical school at the Medical College of Wisconsin before returning to Portland for an anesthesiology residency at Oregon Health and Science University. He then attended Stanford University to study pain management where he learned the importance of approaching and attacking pain from multiple perspectives. He is comfortable with both ultrasound-guided and fluoroscopy-guided procedures and keeps up to date with current research.

Cheryl Wright, NP, PhD

Cheryl Wright, PhD, FNP, earned her MS in Nursing from the University of Florida. After two years in internal medicine, she moved to Seattle to study traditional Chinese medicine at Emperor’s College, obtaining both a master’s degree and NCCAOM board certification. She then earned a doctorate in nursing at the University of Arizona, focusing on TCM for symptom management. At Oregon Health & Science University, she completed a two-year postdoctoral fellowship investigating TCM’s effects on chronic pain and fibromyalgia. Her research emphasized integrative approaches to pain care and advanced understanding of how TCM can alleviate pain symptoms.

At CPSI, she guides individuals through the complexities of chronic pain and offers both pharmacologic and nonpharmacologic strategies for relief.

Deanna Schlegel, NP

Deanna Schlegel is a board-certified Family Nurse Practitioner with over 30 years of experience as a Registered Nurse. With a robust background in orthopedics, neurology, medical and surgical nursing, and case management, she is well-prepared to address a wide range of patient needs. A graduate of Linfield University, Deanna further advanced her expertise by earning her Master’s in Nursing and Family Nurse Practitioner License from United States University. She is committed to evidence-based practice and values a collaborative approach to patient care, continuously integrating the latest research to enhance treatment outcomes.

Eleonora Shukshina, NP

Eleonora Shukshina is a board-certified Family Nurse Practitioner who earned her FNP certification from Grand Canyon University in Arizona. She began her medical career in Uzbekistan, where she received her Doctor of Medicine degree specializing in Internal Medicine from Tashkent State Medical Academy. Eleonora is passionate about delivering personalized, high-quality care, focusing on meeting the unique needs of her patients while working to optimize their overall quality of life.