Chicago Arthritis

Chicago Arthritis is a rheumatology and regenerative orthopedics practice in Chicago, Illinois, and a Regenexx network clinic.

Clinicians

• Siddharth Tambar, MD — board certified in rheumatology and internal medicine, with musculoskeletal ultrasound certifications (AIUM, RhMSUS)

Regenerative treatments offered

• Bone marrow concentrate (Regenexx SD) — marrow drawn from the back of the hip, lab-concentrated and injected with imaging guidance
• PRP — for chronic pain and acute injuries
• Regenexx platelet lysate
• Peptide therapy for weight loss; shockwave therapy also offered

Conditions the practice lists

Tendinitis, arthritis, chronic pain and acute injuries, with regenerative pages for the knee, hip, shoulder, foot and ankle, hand and wrist, elbow and spine. The website also lists rheumatologic conditions under its rheumatology services, including rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis and lupus.

What to know before you call

• Musculoskeletal ultrasound used for diagnosis and guided injections
• In-person visits in Chicago (618 W. Fulton St.) and a Glenview satellite clinic; a Woodridge address also appears in the footer
• Telehealth offered
• Prices and insurance details not published

RPG verification notes

• Clinician credentials listed on the physician profile page
• Website states Regenexx procedures have a success and failure rate
• Prices not published

Last verified by Regen Provider Guide: October 2026. Confirm treatment details, candidacy, insurance coverage and costs directly with the practice. RPG makes no claim about the effectiveness of any treatment.