Meet the Team
Dr. Eric Dickerson, DC, FRCms
Owner | Director of Clinical Development
As an experienced musculoskeletal provider, Dr. Eric Dickerson DC FRCms integrates functional rehabilitation, physical rehabilitation modalities, and advanced soft tissue techniques, to craft a comprehensive approach to your health. He emphasizes individual needs to help you develop optimal functional movement and reach your goals.
Prior to joining Radius, Dr. Dickerson DC FRCms managed a team of providers in Seattle where he helped patients recover from pain and injuries ranging from plantar fasciitis, frozen shoulder, and rotator cuff tears, to low back pain, hip pain, and rehabilitation of post-surgical conditions. He follows the latest evidence and peer reviewed research to guide the care he and his team deliver. Seattle Met Magazine recognized Dr. Dickerson DC FRCms as a Top Doctor in his category of Sports Chiropractor. With an effective care model and countless patient success stories, in 2017 he moved from Seattle, WA to Grass Valley, CA to deliver high-quality care in the Sierra Nevada foothills.
Dr. Dickerson DC FRCms earned a Bachelor of Science in Kinesiology from Arizona State University and earned the prestigious Academic Excellence award during his chiropractic doctorate program at Palmer College in Iowa. While a member of the Sports Council at Palmer, he minimized injuries in athletes through pre- and post-event treatment. As Vice President of the Palmer Package Club, he excelled in training others in chiropractic techniques, orthopedic and neurological examinations, and rehabilitation/exercise protocols. And, through Palmer, he provided chiropractic care in Salvador, Brazil as a humanitarian aid worker, where he gained an acute awareness of the cultural disparity in healthcare. He graduated from Palmer Magna Cum Laude with a Doctorate of Chiropractic degree. After graduation he co-managed patient care in collaboration with a medical doctor outside of Chicago, IL.
Dr. Dickerson DC FRCms is originally from the Chicago metropolitan area. As an avid enthusiast of healthy and physically active living, you’ll find him anywhere he can get outside and move. He has particular interests in yoga, CrossFit, golf, basketball, volleyball, running, hiking, and mountain biking. Dr. Dickerson DC FRCms is excited about everything California and the Sierra Nevada Foothills have to offer!
Dr. Chris Whalen, DC, FRCms
Musculoskeletal Rehabilitation | Rehab Chiropractor
Dr. Chris Whalen, DC, FRCms is a highly knowledgeable chiropractor and rehabilitation specialist with a proven track record of helping patients achieve their health and fitness goals. With his Doctor of Chiropractic degree from Palmer College of Chiropractic West, Dr. Whalen brings a wealth of expertise to his practice, ensuring that his patients receive the highest quality of care.
Before pursuing a career in chiropractic, Dr. Whalen honed his skills as a personal trainer at 24 Hour Fitness, where he gained a reputation as a coach who could help clients improve their strength and athleticism. He also earned a Bachelor of Science degree in Kinesiology with an emphasis in Exercise Science from Sonoma State University and gained valuable hands-on experience as an intern in a physical therapy office.
At Palmer College of Chiropractic West, Dr. Whalen was a valued member of the Rehab 2 Performance Club and a dedicated teaching assistant for physical therapy and rehabilitation courses. He has also provided treatment to athletes at various athletic competitions, including the first ACA Sports Council event after the pandemic.
With a lifelong passion for physical activity and a commitment to helping others achieve their health goals, Dr. Whalen is dedicated to helping his patients achieve their best possible health. Whether you're recovering from an injury, looking to improve your strength and athleticism, or simply seeking to live a healthier and more active lifestyle, Dr. Whalen has the expertise and experience to help you achieve your goals. He is excited to bring his skills to the small town of Nevada City, where he is eager to help local residents achieve their best possible health.
Grafton Prewett, DPT
Neuromusculoskeletal Rehabilitation | Physical Therapist
Ronja Geisser, LMT
Massage Therapist
Ronja Giesser joins Radius with over 12 years of experience. She received her massage training at the acclaimed Hawaiian Islands School of Massage in 2009. She has a special passion for helping people reduce pain and stress in their lives through therapeutic bodywork.
Ronja's work focuses on the treatment and prevention of musculoskeletal dysfunction and pain using myofascial release, trigger point, and neuromuscular techniques as well as Swedish massage, Lomi Lomi, Sports Massage, and Deep Tissue massage.
When she is not helping people relax and return to optimal functioning, you can find her dancing in the air on aerial fabrics or enjoying the great outdoors.
Erin Crow, LMT
Massage Therapist
Erin brings 25 years of massage therapy practice and care to her clients. Her focus is medical massage modalities including Swedish massage, Esalen deep bodywork, myofascial release, prenatal, and elder care. Erin’s therapeutic services encompass therapeutic deep tissue massage, relaxation techniques, and reiki energy work. From athletes to elders, Erin provides effective treatment for acute and chronic physical conditions, rehabilitative injury recovery, and overuse syndromes. Her style is a blend of knowledge, empathy, and experience addressing the human condition.
Serene Renschler
Rehabilitation Specialist
Mandi Nunley
Referral Coordinator
Karen Wallack-Eisen
Front Office Coordinator
Baylee Reynolds
Front Office Coordinator