Physicians & Providers
Orthopedic Spine & Neuro-Spine Surgeons
Thomas Rieser M.D., F.A.A.O.S.
Fellowship trained Orthopedic Spine Surgeon
Dr. Rieser is the founding physician at Midwest Spine Institute. Since 1987, he has pursued and shared his clinical excellence in new techniques and...
Glenn Buttermann M.D., M.S., F.A.A.O.S.
Fellowship trained Orthopedic Spine Surgeon
Known all over the world for his extensive research and journal articles, Dr. Buttermann spends several days each month in research activities...
Stefano Sinicropi M.D., F.A.A.O.S.
Fellowship trained Orthopedic Spine Surgeon
Dr. Sinicropi’s passion for helping patients return to an active and pain-free life is evident in the testimonials from his satisfied patients...
Daniel Hanson M.D., F.A.A.O.S.
Fellowship trained Orthopedic Spine Surgeon
Born and raised in Minnesota, Dr. Hanson comes to Midwest Spine Institute with years of experience...
Lynn Miller D.O.
Fellowship trained Neurosurgeon
Daryll Dykes M.D., F.A.A.O.S.
Fellowship trained Orthopedic Spine Surgeon
Midwest Spine Institute is pleased to announce the addition of Dr. Daryll Dykes, an internationally recognized leader in the field of spinal medicine and surgery. Dr. Dykes specializes in advanced adult and pediatric treatment options for....
Interventional Pain Physicians
Louis Saeger M.D., F.A.C.P.M.
As the first interventional pain physician at Midwest Spine Institute, Dr. Saeger helped develop our spa-like interventional pain centers...
Mark Janiga M.D., D.A.B.P.M.
Mark Yamaguchi M.D., D.A.B.A.P.M.
Stephen Knuff D.O., F.A.A.P.M.R.
Mid-level Providers
Eric Salman PA-C
With years of experience in evaluation and treatment of patients with back and neck pain, Eric works closely with Dr. Buttermann...
Jacob Guth PA-C
Jacob is dedicated to helping patients return to an active life. He works closely with Dr. Sinicropi, in addition to the rest of the...
Phillip Stewart PA-C
Phillip works in collaboration with all of the spine surgeons and interventional pain physicians notably Dr. Hanson. His special interests include anatomy...
Chad Swearingen PA-C
Chad joined Midwest Spine Institute in February of 2011, bringing a wealth of clinical and hospital experience in caring for orthopedic spine patients.....
Mark Stock R.N., N.P.-C
Mark joined Midwest Spine Institute early in 2011 bringing much experience providing comprehensive care for neurosurgical patients in the hospital as well as ambulatory care clinic setting.....
Matthew Hawkins PA-C
Matt is an experienced Physician Assistant who joined Midwest Spine Institute in the summer of 2011, bringing a wealth of clinical and hospital experience.
Physical Therapists
Jennifer Armitage PT
Midwest Spine Institute is pleased to announce the addition of spine specific Physical Therapy services to our practice. Jenni Armitage, an experienced Physical Therapist has recently joined the Midwest Spine Institute Care Team.

