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Our physicians are board certified in Anesthesiology. We offer diagnostic assessments of pain problems and provide therapeutic modalities such as injections, physical therapy, behavioral health counseling, and pain medication management. The friendly, understanding staff work together with other health care professionals and services to provide continuity in the management of pain. Highly skilled pain management specialists work closely with the patient and the family physician and take a multidisciplinary approach to pain with the services they offer to their patients through:

  • Physical therapy
  • Injection therapy
  • Medication management
  • Counseling
  • State of the art technology

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Interventional Pain Management

University of Minnesota School of Medicine, Minneapolis, MN

Academic Appointments
Assistant Clinical Professor - Department of Anesthesiology - University of Wisconsin - Madison, WI
Assistant Clinical Professor - School of Nursing - University of Wisconsin - Eau Claire, Eau Claire, WI

Board Certification(s)
American Board of Anesthesiology - 1987
Diplomat of American Academy of Pain Management - 1992
Diplomat of American Board of Pain Medicine - 1994
American Board of Anesthesiology, Subspecialty Board in Pain Management - 1994
Recertification in Subspecialty Board in Pain Management - 2005

Pain Management
Dr. Endres has been working in the subspecialty area of pain management for over 20 years. He was the first physician in western Wisconsin to use fluoroscopy when performing spinal injections and procedures.

Professional Societies
Past President, International Spinal Intervention Society
Past Chairman, International Spinal Intervention Society Education Committee
American Academy of Pain Medicine
American Medical Society

Involvement in Medical Education
Master Instructor, International Spinal Intervention Society - Course instruction internationally for the last fifteen years in all aspects in diagnostic intraspinal and extraspinal diagnostic and therapeutic radiographic techniques.

July 2012 – presented Efficacy/Safety of Performing Fluoroscopically Guided Spinal Interventions in Conjunction with Anticoagulation Therapy at the International Spinal Injection Society 20th Annual Meeting, Las Vegas, NV

Pain Medicine; “Efficacy/Safety of Performing Fluoroscopically Guided Spinal Interventions in Conjunction with Anticoagulation Therapy”. Volume 12, number 9, 2011

Clinical Anatomy of the Lumbar Spine and Sacrum 4e, Foreword by Stephen Endres. Elsevier: Sydney. 2005.

Practice Guidelines: Spinal Diagnostic and Treatment Procedures; "Lumbar Disc Stimulation (Provocation Discography)". International Spinal Intervention Society, 2004.

International Spinal Injection Society Standards and Protocols, "Lumbar Discography Standards", February 2002

Wisconsin Medical Journal, "Effectiveness of Intradiscal Electrothermal Therapy in Increasing Function and Reducing Chronic Low Back Pain in Selected Patients", volume 101, No. 1 2002.

Post Graduate Education
Mayo Graduate School of Medicine, Rochester, MN - Anesthesiology

Medical Director, Pain Clinic of Northwestern Wisconsin 1989 - Present
Expertise in intraspinal and extraspinal diagnostic and therapeutic radiographic guided techniques.

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Pain management
Spinal injections
Radiofrequency lesioning
Spinal cord stimulator and pump placement/maintenance
Use of fluoroscopy

Education and Certification(s)
Dr. Mark Schlimgen received his medical degree from the University of Nebraska Medical Center in 1992. He completed his internship and residency at the University of Wisconsin-Madison and is Board Certified in Anesthesiology and Pain Medicine. His is an instructor for the International Spinal Intervention Society (ISIS). Dr. Schlimgen's goal is to reduce pain and increase function for patients by providing diagnostic and therapeutic spinal injections.

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B.A. Psychology State University of New York, Plattsburgh
BSN University of Wisconsin – Eau Claire

7 years Acute Care Neuroscience and Trauma
4 years Neurosurgery First Assistant
10 years in Pain Management specializing in Neuromodulation for pain relief and spasticity

Provides skilled nursing support, coordination for neuromodulation screening trials and surgical procedures, and technical assistance with implanted devices.