For Providers

For Referring Providers

We're Here for You

Midwest Spine Institute is an independent medical clinic that was established in 1987 as a center of excellence dedicated to restoring lives affected by spinal disease and disorder. Our Team of board certified Spine Surgeons, Interventional Pain Physicians and Physician Assistants provide non-surgical, interventional, minimally invasive or traditional surgical treatment to help you return to a fulfilling lifestyle.

We're Here for Your Patient's Spine Care Needs

Whether it be for evaluation, medication management or post-procedure treatments, we are here to help your patients with all their spine conditions and concerns.

Patient Experience

“I would like to thank Dr. Locketz for his patience, dedication and professionalism, not only for the wonderful quality of life, but the unexpected discovery of the pituitary adenoma. Had it not been for his meticulous work, the tumor would have gone undetected and obviously resulted in substantial harm”.

Mark G

The Midwest Spine Institute "Care Team”

Our Spine Surgeons and Physician Assistants work together as a "Care Team” with you and your patient to find the most successful treatment plan for them.

Spine Surgeons

Thomas Rieser

M.D., F.A.A.O.S.

Dr. Rieser is the founding physician at Midwest Spine Institute. Since 1987, he has pursued and shared his clinical excellence in new techniques and...

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Glenn Buttermann

M.D., M.S., F.A.A.O.S.

Known all over the world for his extensive research and journal articles, Dr. Buttermann spends several days each month in research activities...

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Stefano Sinicropi

M.D., F.A.A.O.S.

Dr. Sinicropi’s passion for helping patients return to an active and pain-free life is evident in the testimonials from his satisfied patients...

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Daniel Hanson

M.D., F.A.A.O.S.

Born and raised in Minnesota, Dr. Hanson comes to Midwest Spine Institute with several years of experience...

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Interventional Pain Specialists

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...

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Adam Locketz

M.D., D.A.B.P.M.R.

Dr. Locketz combines his training as a Physical Medicine and Rehabilitation physician with his expertise in interventional pain management to help...

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Mark Janiga

M.D., D.A.B.P.M.

After practicing in his independent practice, Minnesota Interventional Pain Associates for the past 2 ½ years in Blaine, MN, Dr. Janiga joins Midwest Spine Institute to provide collaborative care for patients affected by neck and back pain. Dr. Janiga offers a complete range of minimally invasive diagnostic and therapeutic options with a commitment to help patients live a more active and pain-free life.

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Mark Yamaguchi

M.D., D.A.B.A.

Dr. Yamaguchi works collaboratively with the spine surgeons and physician assistants at Midwest Spine Institute to provide a thorough analysis of each patient's condition in order to educate and engage patients in deciding on the best treatment plan that will help them return to an active life.

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Physician Assistants

Steven Lawson

PA-C

Steve brings a number of years of experience in providing excellent spine evaluation and treatment for our patients. He works closely with...

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Eric Salman

PA-C

With several years of experience in evaluation and treatment of patients with back and neck pain, Eric works closely with Dr. Buttermann...

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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...

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Phillip Stewart

P.A.-C

Phillip works in collaboration with all of the spine surgeons and interventional pain physicians notably Dr. Hanson. His special interests include anatomy...

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