CONTACT US. 773-348-7171

If you have joint or spine pain, consider Regenexx® non-surgical treatments to help reduce pain, improve function & return to activity.

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  • Regenexx® Procedures Help Reduce Pain and Restore Function Without Surgery.
  • Patented Protocols That Are 100% Focused on Orthopedic Conditions.
  • Backed by Extensive Research and Published Patient Outcome Data.
  • All Regenexx Doctors Are Musculoskeletal Specialists With Advanced Training.
  • Precise Image Guided Injections Ensure Patients of the Best Possible Results.
Mary Uggen
8 months ago
The Regenexx bone marrow/stem cell procedures I have received at Chicago Arthritis have been spectacular- 100% successful. Dr.Tambar and his team are…
bruce baker
8 months ago
my experience at my appointment on 6 Nov 2020 was ok. thank you.…
Juan Romero
8 months ago
Dr. Tambar and his team never fail to dilver excellence service. I’ve had many procedures done with him due to many injuries.…
Allen Reed
8 months ago
Dr. Tambar was great. I was experiencing pain in my lower back and hamstring. I felt comfortable opting to have the stem…
Javier Leos
6 months ago
Definitely have an amazing staff here. Very thorough and very helpful. Felt terrible that I was a little late to my appointment…
Rachael Martinez
6 months ago
Chicago Arthtitis was a wonderful experience there extremely knowledgeable and professional, I’ve completed several treatments Platelet rich plasma injections and reduce my…
Adrien Lastet
8 months ago
Excellent treatment, bedside manner, analytics, everything about this was beyond my expectations. They explained in great detail what was happening with the…
Lin Dao
8 months ago
I went to see Dr. Tambar for for AS issues. He told me what my treatment options were and we discussed at…
Craig Mandernach
8 months ago
Dr. Tambar does daily what others say can’t be done at all. Take your MRI’s and x-rays for your visit. I found…
Kevin Menendez
8 months ago
Dr Tambar and all of his team members are very kind and helpful! I will highly recommend to anyone.…

Life's Too Short To Live It In Pain. We Can Help.

If you’re suffering from pain related to arthritis, joint injury, spine pain or other degenerative condition, you’re not alone. We’ve helped thousands of patients avoid surgery and get back to doing the things they love.

Regenexx Procedures are the trusted alternative to surgery. Imagine being able to reduce your pain and return to normal activities without the need for surgery. To speak to a Regenexx Specialist and learn more, contact us at the number below.

Call 773-348-7171

Your Alternative to Surgery

Your body is full of living cells, some that act as repairmen of the body. However, as we age or get injuries, we sometimes can’t get enough of these critical repair cells to the injured area to do their work. Regenexx procedures work without surgery by increasing the concentration of your body’s own healing agents to stimulate the natural healing response in your injured or degenerative area.

Our patients benefit from less downtime, less pain, and faster recovery than invasive surgical procedures. Many of today’s most common surgeries have been shown to be ineffective and can begin a cascade of joint degeneration that leads to early-onset arthritis. Sometimes at an alarming rate. Regenexx seeks to reduce pain and restore function, without removing tissue and creating additional problems, which is often the case in surgeries that claim to “clean-up” a joint.

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America's Top Orthopedic Specialists & Industry-Leading Regenerative Treatments

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Our #1 priority is to produce the best possible outcomes for our patients. And while our patented protocol is far more complex than you will find at other regenerative medicine clinics, we do not cut corners. Everything about your treatment is designed for results.

Regenexx procedures use image-guidance technology to place customized doses of your own cells precisely into the area of need.

Regenexx Procedures May Be the Right Solution for You

Have you been told that steroid injections or invasive surgery are your only options to treat your pain? Interventional orthopedics provides a non-surgical alternative. If you experience joint or spine pain during normal activity, you may be a good candidate for a Regenexx procedure.

Surgery should always be your last option. Post-surgical recovery can be painful, requiring a lengthy rehab period to restore strength and mobility to the area.

As an alternative to surgery, Regenexx procedures help alleviate pain and restore joint or spine function with a non-invasive injection procedure. Downtime is minimal, with little need for pain management medications, lengthy rehab, or time off of work.

REQUEST PATIENT INFORMATION

Commonly Treated Conditions

  • Knee arthritis, meniscus tears, ACL tears, other injuries
  • Hip arthritis or labral tear
  • Shoulder rotator cuff tear or arthritis
  • Back or neck pain due to herniated or degenerated discs
  • Ankle arthritis, ligament sprain or tear
  • Plantar fasciitis
  • Tennis or golfer’s elbow
  • Texting thumb or thumb arthritis, Carpal tunnel
  • And many more common musculoskeletal conditions that cause pain

Detailed Evaluations and Diagnostics

Correct diagnosis takes time. Regenexx physicians spend an average of an hour with new patients evaluating every aspect of their injuries and developing a comprehensive treatment plan that addresses not only the site of pain but its underlying causes.

Patients receive a candidacy grade that rates the likelihood that a Regenexx procedure can help them.

Regenexx Benefits

  • Increased function
  • Pain reduction
  • Most individuals do not experience extensive downtime
  • Minimal time off of work
  • No surgery
  • Minimal use of mobility tools (crutches, etc.)
  • Minimal disruption of regular routine

Clinic Locations

Chicago

618 W. Fulton St.
Chicago, IL 60661
773-348-7171

Chicago Arthritis and Regenerative Medicine Doctors

Siddharth Tambar, MD

Professional interests

  • Newer regenerative medicine treatments for chronic musculoskeletal problems, including the use of Platelet Rich Plasma and Stem cells for tendinitis and arthritis.
  • Newer treatments for autoimmune diseases, including for rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis.
  • Musculoskeletal ultrasound for diagnosis of various joint/tendon/nerve conditions, and for guided injections.

Education/Training

  • 2008 Rheumatology Fellowship, Northwestern Memorial Hospital
  • 2004 Internship and Residency in Internal Medicine, Northwestern Memorial Hospital
  • 2001 Doctorate of Medicine, State University of New York at Syracuse
  • 1997 BA Economics, Summa Cum Laude, State University of New York at Buffalo

Awards/Honors

  • 2001 Alpha Omega Alpha, State University of New York at Syracuse
  • 1997 Summa Cum Laude, State University of New York at Buffalo
  • 1997 Phi Beta Kappa, State University of New York at Buffalo.
  • 1997 Dean’s Departmental Award, Economics Department, State University of New York at Buffalo.
  • 1993-1997 State University of New York at Buffalo Honors Program

Certifications

  • Board Certified Rheumatology 2008
  • Board Certified Internal Medicine 2004
  • American Institute Ultrasound Medicine Certified in Musculoskeletal Ultrasound 2012
  • Musculoskeletal Ultrasound Certification in Rheumatology (RhMSUS) 2013

Professional Affiliations

  • Regenexx Network Physician
  • American College of Rheumatology- Musculoskeletal Ultrasound Education Planning Committee member
  • American Institute of Ultrasound Medicine
  • Internation Cellular Medicine Society
  • Illinois State Medical Society
  • Chicago Medical Society

Areas treated: Foot & Ankle, Hand & Wrist, Hip, Knee, Shoulder, Elbow

Ready to Find Relief?

Life’s too short to live in pain. Take advantage of new regenerative treatments that are helping people avoid joint replacement and other invasive surgeries. Get back to doing the activities you love, faster and without surgery.

Request Information

*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.

Providers listed on the Regenexx website are for informational purposes only and are not a recommendation from Regenexx for a specific provider or a guarantee of the outcome of any treatment you receive.