International Registry of Stem Cell Treatment Providers  ·  2026 Clinical Edition  ·  1,481 Verified Clinics Across 69 Countries
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StemCell RegistryUSACalifornia › Prolotherapy

Prolotherapy

Prolotherapy injection service offered at the Stem Cell Institute in West Los Angeles, the practice of Dr Marc Darrow.

Medical Disclaimer: This profile is compiled for informational purposes only and is not medical advice, a clinical endorsement, or a statement that any treatment is proven or approved. Stem cell therapies vary widely in regulatory status and evidence. Consult a qualified physician before pursuing treatment.

Overview

This listing points to the prolotherapy service of the Stem Cell Institute, a private practice at 11645 Wilshire Boulevard in West Los Angeles led by Dr Marc Darrow. It is not a separate clinic with its own premises; it is one of the treatments offered at that address.

Prolotherapy is an injection technique in which a solution is injected into or around a painful joint, ligament or tendon. At this practice it sits alongside two other injection treatments: platelet rich plasma (PRP) therapy, which uses platelets concentrated from the patient's own blood, and stem cell therapy using cells drawn from the patient's own bone marrow. Hyaluronic acid injections are also offered. All are outpatient procedures done in the clinic rather than in an operating theatre.

The site presents its work by body area, covering the knee, spine, hip, neck, shoulder, elbow, hand and wrist, and foot and ankle. It states the practice has been treating patients for nearly thirty years. No prices are given for prolotherapy or for any other treatment.

At a Glance

Location
Los Angeles, California, USA
Google Rating
4.9 ★ (61 reviews)
Languages
English; the website carries an automated translation tool for more than forty languages.

Services and Treatments Offered

  • Prolotherapy injections
  • Platelet rich plasma (PRP) therapy
  • Stem cell therapy using bone marrow derived cells
  • Hyaluronic acid joint injections

Conditions Treated

The conditions listed span most of the joints in the body. Ask what evidence supports prolotherapy for your specific diagnosis, and how it compares with physiotherapy or other standard care.

Knee osteoarthritis, ACL tears and meniscus damageBack pain, sciatica and sacroiliac joint painNeck painHip painShoulder pain, rotator cuff tears and frozen shoulderElbow painCarpal tunnel syndrome and thumb osteoarthritisPlantar fasciitis and Achilles tendon problems

Cell Sources and Technologies

Prolotherapy solution (not a cell therapy)Platelet rich plasma (PRP) from the patient's own bloodBone marrow derived stem cells from the patientHyaluronic acid

Physicians and Clinical Team

Marc Darrow, MD, JD — physical medicine and rehabilitation physician; the site states he trained and taught at UCLA

Facility and Patient Experience

Treatment is given at the Stem Cell Institute, 11645 Wilshire Boulevard, Suite 120, Los Angeles, California 90025. Hours are Monday to Friday, 9am to 5pm. This is an outpatient clinic; no surgical or overnight facilities are described.

  • 11645 Wilshire Boulevard, Suite 120, Los Angeles, CA 90025
  • Monday to Friday, 9am to 5pm
  • Same address and staff as the Stem Cell Institute of Los Angeles listing
  • Outpatient injections only

Cost and Payment

The cost of prolotherapy is not published. Neither a consultation fee nor a per-injection or per-course price appears on the site, so ask for a written quote.

Profile compiled from information published on the clinic's own website and from the StemCell Registry directory record. Details may change; confirm directly with the clinic before making decisions.

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