Stem Cell Therapy and Regenerative Medicine Clinics in Los Angeles, CA

The three Los Angeles practices listed here sit within a few miles of each other on or near Wilshire Boulevard. They are a physical medicine clinic whose site says outright that “Stem Cell and PRP procedures are not approved by the FDA,” and two Beverly Hills orthopedic surgeons. California adds a concrete check. A notice in specific wording is required for covered stem cell therapies that FDA has not approved, so you can look for those words before you sit down.

Los Angeles Practices

Clinic	Where	Physician named	What its site says it uses	Price posted
Joint Rehab and Sports Medical Center	West Los Angeles	Marc Darrow, MD	Own marrow concentrate, PRP, prolotherapy	Not posted
Meier Orthopedic Sports Medicine	Beverly Hills	Steven Meier, MD	High-dose PRP, marrow concentrate, fat cells; describes birth tissues	Not posted
Patel Orthopedics	Beverly Hills	Rajan Patel, MD	Stem cell therapy, PRP	Not posted

Joint Rehab and Sports Medical Center

Dr. Darrow is a physical medicine and rehabilitation specialist who, per the site, relies on physical examination over X-ray and MRI. A page on ankle arthritis here says the procedure “may help some patients” and that there should “always be a realistic expectation” of what stem cells can do. The site also says it does not provide IV treatments.

• Address: 11645 Wilshire Blvd #120, Los Angeles, CA 90025
• Phone: (310) 231-7000
• Website: https://jointrehab.com/
• Physicians: Marc Darrow, MD, JD
• What the site lists: Bone marrow aspirate concentrate, PRP, non-surgical joint care
• Hours: Monday to Friday, 9am to 5pm
• Insurance and price: Not posted on the pages read
• Ask: How many injections do you expect for me, what does each cost, and when would you tell me to stop?

Meier Orthopedic Sports Medicine

Dr. Meier is a board-certified orthopedic surgeon focused on sports medicine and joint preservation. His regenerative page lists high-dose PRP, marrow concentrate and fat-derived cells, plus a section on amniotic, placental and umbilical tissue injections. Ask whether that last group is something he offers now, or only something he explains.

• Address: 8641 Wilshire Blvd., Suite 215, Beverly Hills, CA 90211
• Phone: (310) 777-7845
• Website: https://mosm.com/
• Physicians: Steven Meier, MD; Ashton Greenblatt, PA-C
• What the site lists: PRP, bone marrow aspirate concentrate, adipose cells, knee and shoulder surgery
• Insurance and price: The site has insurance coverage and verification pages; injection fees are not posted on the pages read
• Ask: Do you inject donor birth tissue here? If yes, under what FDA status?

Patel Orthopedics

Dr. Patel is a hip and knee surgeon with more than 20 years in complex joint surgery, by the site’s account, and his site also offers stem cell therapy and PRP. It suits a patient who may need replacement and wants to hear the case for and against injections from the surgeon who would do it.

• Address: 8712 Wilshire Blvd., Suite 1, Beverly Hills, CA 90211
• Phone: (310) 954-9280
• Website: https://www.patelorthopedics.com/
• Physicians: Rajan Patel, MD
• What the site lists: Stem cell therapy, PRP, robotic-assisted joint replacement
• Hours: Monday to Friday, 8am to 4pm
• Insurance and price: Not posted for injections on the pages read
• Ask: At my stage of arthritis, what do you think an injection will change about the timing of replacement?

The Words on the Wall

Under California Business and Professions Code section 684, the notice reads: “THIS NOTICE MUST BE PROVIDED TO YOU UNDER CALIFORNIA LAW. This health care practitioner performs one or more stem cell therapies that have not been approved by the United States Food and Drug Administration. You are encouraged to consult with your primary care provider prior to undergoing a stem cell therapy.” It must also be given to you in writing before your first therapy. A licensing board can fine up to $1,000 per violation after a first complaint. The section does not apply to treatment meeting specified federal criteria or to practitioners with an FDA investigational new drug approval, so ask which applies if you see no notice. The linked copy is dated 2019, so read California’s legislative site for changes. Check licenses with the Medical Board of California.

FDA and Published Evidence

FDA’s consumer notice says regenerative therapies have not been approved for any orthopedic condition, whether cells come from your body or a donor’s, and it lists amniotic fluid and Wharton’s jelly among unapproved products. Under its guidance, marrow stays outside the tissue rules only when minimally manipulated and used for its normal function, and PRP is treated as a blood product.

A phase 3 trial of 480 randomized knee patients (440 analyzed) found no cell preparation better than cortisone at one year. The American College of Rheumatology’s 2026 recommendations strongly recommend against PRP and stem cell injections in the knee and hip. Ask for a written estimate, since no practice here posts a fee on the pages read. Patients farther south can see the San Diego list.

Website details were read in November 2026 and can change; phone to confirm them. This page neither ranks nor recommends these practices, and it is not medical advice. FDA has received reports of blindness, tumors and infections from unapproved regenerative products.