Demetrios Louis, M.D., DABA, DABAPM

Medical School:​  St. Matthews University​

Internship:  Rush University Medical Center   (Intern of the Year)

Residency:  Rush University Medical Center​

Fellowship:  Harvard Medical School / Brigham and Women's Hospital​

Board Certifications:
                 Pain Medicine

Hospital Affiliations:

                 Northwest Community Hospital   (Arlington Heights, IL)

                 Advocate Condell Medical Center   (Libertyville, IL)

    Dr. Louis is a lifelong Chicagoan who grew up on the North Shore of Chicago.  He attended both Cornell University and Michigan State University, ultimately receiving an undergraduate degree in Physiology.  Following graduation, he returned home to pursue advanced studies in Physiology and Biophysics at the University of Illinois.  Thereupon, he received his medical degree at St. Matthew's University where he graduated top of his class. After completing medical school, Dr. Louis returned back to Chicago and started his internship in General Surgery at Rush University Medical Center.  At Rush, he was also involved in extensive research in General Surgery and Pain Medicine, helping create protocols for fast-tracking surgical patients in the post-operative period.  Dr. Louis then completed a residency in Anesthesiology at Rush University Medical Center.  Subsequently, he left Chicago for Boston in order to complete a fellowship in Interventional Pain Medicine at Brigham and Women's Hospital of Harvard University, one of the world's most prestigious pain medicine programs.  Upon completing fellowship, he spent one year in Boston at a teaching affiliate of Tuft's University, where he practiced Interventional Pain Medicine and Anesthesiology.  His ambition to provide comprehensive and quality care for his community motivated Dr. Louis to return back home to Chicago to start a practice in Interventional Pain Medicine with his friend and colleague Dr. Paul Marsiglia at Innovative Pain Specialists.  Dr. Louis has considerable interest in all pain disorders converging and implementing  the latest interventions and techniques to help treat patients with both acute and chronic pain.  In addition, he serves on the medical staff of Northwest Community Hospital where he is actively involved in treating patients with pain.  He is double board-certified by the American Board of Anesthesiology in Anesthesiology and Pain Medicine.  Outside of work, Dr. Louis likes to spend his time watching Chicago sports, playing sports, traveling, cartography, and being with his family.

Patient Testimonials

(see more testimonials / reviews here)

Margie S.

I love seeing Dr Louis. I have seen him for several years. I actually enjoy going to see him. He listens to what you have to say & what your needs are. He doesn't like putting you on a lot of medicine. However, what you need & what is working is what he will make sure you have.

Anita C.

Dr Louis goes above and beyond! Along with having back pain from several previous surgeries, I also suffer from chronic daily severe migraines. He helped me with both conditions more than any doctor I've seen in 25 years. I truly appreciate his level of expertise and professionalism. But even mor, his compassion.

Caroline S.

Dr. Demetrius Louis is pretty awesome. He cares about his patients enough to look outside the box and research other alternatives to get us pain free without always having to take medicines. I'm a terrible TMJ case, have been for years. He gave me meds, but also gave me trigger point injections which even after the first one, have helped greatly. He's a nice caring guy, and so are all the nurses. I'm very happy and relieved I finally found a Dr that understands and is helping so much more than others at just the 2nd visit. Thanks!

Christina F.

Dr Louis and staff are wonderful! They have great kindness, understand meant, and knowledge meant of a patient's need for care. Dr Louis works with the patient to provide proper treatment. I would highly recommend Innovative Care Specialists to any patient that is in need of pain relief.

Dave M.

I have the utmost respect for Dr. Louis and his staff, he is forthright and honest, he listens when you have questions and is through in his explanations about procedures and timelines. I met a lot of doctors since my accident and he is by far the best. I recommend him to all my family and friends.


Dr. Louis is by far one of the most understanding Dr's I have dealt with. He has a great bed side manner.

I wish all physicians treated me like he'd did with; compassion, and caring.

Suzanne B.

My vascular surgeon recommended Dr. Louis after struggling with postoperative pain for four months. He was extremely thorough and meticulous in his assessment of my condition. I am excited and hopeful to begin enjoying my life again!! I will recommend him in an instant and not think twice!!

William D.

I consider myself to be extremely fortunate to have been under the care of Dr Louis & his staff at IPS for the past 18 months. Their pain management expertise has given me a quality of life that I didn't know was possible & for that, I'll be forever grateful.


Dr. Louis is a thorough, patient listener who continues to look for solutions to my mother's complicated pain management needs. We always leave his office with a clear-cut plan and a hopeful outlook.