Darrow Sports & Wellness Institute/Stem Cell Institute/Prolotherapy Institute

Darrow Sports and Wellness Institute, which also runs as the Prolotherapy Institute and Stem Cell Institute, is a nonsurgical regenerative injection practice on Wilshire Boulevard in Los Angeles, California.

Clinicians

• Marc Darrow, M.D., J.D.

Regenerative treatments offered

• Prolotherapy (dextrose)
• Platelet-rich plasma (PRP)
• Stem cell injections; the site refers to bone marrow stem cells
• Ultrasound-guided needle placement is listed as an add-on on the fee schedule

Conditions the practice lists

The site names back pain, neck pain, knee pain, hip pain, osteoarthritis (including ankle), chronic joint pain, sacroiliac joint dysfunction, tendinopathy, rotator cuff tears, degenerative disc disease and wrist pain.

What to know before you call

• The payment page lists prices: dextrose prolotherapy $295 per area; PRP $800 for one area ($650 each additional); stem cell $1,800 for one area ($1,650 each additional); ultrasound-guided needle $50
• The site says most insurance policies do not cover prolotherapy, PRP or stem cell treatments; it lists the practice as in-network with Medicare, Anthem Blue Cross, Blue Shield, United Healthcare, Cigna and Aetna for consultations, and offers superbills to out-of-network patients
• CareCredit is accepted
• One office listed: 11645 Wilshire Blvd, Suite 120, Los Angeles, CA 90025

RPG verification notes

• Prices published on the site’s payment information page
• Website shows a disclaimer that these modalities “may not be considered mainstream” and that site content is educational only
• Specialty board certification not stated on the pages reviewed

Last verified by Regen Provider Guide: October 2026. Confirm treatment details, candidacy, insurance coverage and costs directly with the practice.