Chicago’s Most Advanced Regenerative Orthopedic Medicine and Rheumatology Treatments.
Next-generation regenerative orthopedic procedures and inflammatory arthritis treatments are available today. If you are in need of treatment for your pain, please contact us first to learn about our advanced non-surgical treatments.
Dr. Siddharth Tambar
- Non-surgical treatments for chronic musculoskeletal problems, including tendinitis and arthritis.
- Newer treatments for autoimmune diseases, including rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis.
- Musculoskeletal ultrasound for the diagnosis of various joint/tendon/nerve conditions, and for guided injections.
- Regenerative orthopedics for chronic pain and acute injuries.
*DISCLAIMER: Like all medical procedures, Regenexx® Procedures have a success and failure rate. Patient reviews and testimonials on this site should not be interpreted as a statement on the effectiveness of our treatments for anyone else.
Regenexx is a world leader in the field of orthopedic regenerative medicine based on scientific publications and is arguably the world’s most advanced platform for in-office interventional orthopedics.
More than 157,200 highly specific image-guided Regenexx® Procedures have been performed since Regenexx pioneered the field of interventional orthopedics, using bone marrow concentrate to treat common orthopedic problems in 2005.
The published research on Regenexx procedures accounts for approximately 44% of the world’s research on the use of bone marrow concentrate for orthopedic conditions (cumulative n of patients published & treated with bone marrow concentrate as of 1/1/2019)

Inflammatory Arthritis Treatment Center
As an outpatient clinic focused on autoimmune conditions, your specific needs are addressed as our priority. We offer a cost-effective, convenient, and friendlier option for your treatment when compared to hospitals and other infusion clinics.
At Chicago Arthritis and Regenerative Medicine, we offer a range of treatment options for a variety of rheumatologic disorders including:
- Rheumatoid Arthritis, Psoriasis, and Ankylosing Spondylitis
- Osteoporosis
- Systemic Lupus Erythematosus
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Why does my shoulder hurt when playing tennis?
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How do I know whether my Hand pains are from Rheumatoid Arthritis?
A common question I get from patients as well as from referring physicians and colleagues is when should you consider that somebody's hand pains...
Why Do I Have Pain Under My Knee Cap?
Why Do I Have Pain Under My Knee Cap?Pain under the knee cap, or patellofemoral pain, is a common issue I see. Learn more about this condition,...
In the News- The Best Exercises for a Pinched Nerve in the Neck or Lower Back- SpineUniverse
Siddharth Tambar MD was quoted in SpineUniverse recently discussing safe exercises for the neck and lower back if you have a pinched nerve. Link to Article. If you are interested in evaluation or treatment for your back pain at Chicago Arthritis and Regenerative...
What’s Causing Your Hand Pain?
What’s Causing Your Hand Pain? Pain in the hand, in particular the thumb, is fairly common. Texting, mobile phones, and work make thumb and hand...