Stem Cell Injections ArizonaAbout R3 Stem Cell Centers

R3 Stem Cell’s Centers of Excellence in Ventura County provide regenerative options that provide patients hope and pain relief. Hope that possibly risky surgery such as knee replacement can be avoided, and arthritis and soft tissue injury can be repaired with the person then being able do things like hike, play tennis, swim, play with your kids again, ride a bike and be… Free of Pain!

Conventional pain therapies have been great at reducing pain by masking discomfort in a “band aid” fashion with medications such as opiates, steroids, or NSAIDS.

These treatments have been great for relief, but they just do not repair the underlying problem!

Fixing Tissue Injury with Stem Cells

So how is the problem really corrected at our stem cell treatment centers serving Thousand Oaks, Santa Barbara, Oxnard, Ventura County, whether it’s hip/knee/shoulder/ankle arthritis, achilles tendonitis, rotator cuff tendonitis, ligament injury, golfers/tennis elbow, sports injuries?

Regenerative Medicine at R3 Stem Cell centers has the possibility for restoring normal anatomy by using treatment with stem cells, platelet rich plasma therapy and growth factors to promote a healing response in your own body.

Stem Cells are a veritable “blank slate” and can morph into several types of cells helpful for tissue regeneration depending on the environment in which they are placed.

R3 Stem Cell Treatments

R3 stem cell injection treatments in Ventura County include:Platelet Rich Plasma Therapy Research

These are all effective, low risk, outpatient therapies. All of the injections are performed either into joints or soft tissue.

More and more studies are showing these regenerative procedures to have excellent outcomes in healing injury while decreasing pain. For example, several professional sports leagues have approved of PRP therapy along with the WADA.

Pro athletes who have undergone regenerative medicine therapies performed include the likes of Kobe Bryant, Rafael Nadal, Dwight Howard, Tiger Woods and many more. HUNDREDS of NFL players have had stem cell therapies, as reported in a recent Sports Illustrated article.

All of the treatments at R3 Stem Cell centers are administered by Board Certified physicians.

Mission Statement

R3 Stem Cell centers offer cutting edge regenerative medicine therapies with the possibility of repair, regeneration and restoring damaged tissue. This may offer individuals reduced pain and increases functional ability with outpatient treatments that are low risk and nonoperative. R3 Stem Cell desires to make a difference in patient’s lives by helping them avoid surgery and remain as active as desired.


Roberto Contreras, MD


Dr. Roberto Contreras is a Board Certified physician with extensive experience in PRP therapy. He graduated jcn36vzjq1c884qi01nffrom George Washington Medical School in 2006 and then received internal medicine training at USC Medical Center.


The George Washington University School of Medicine and Health Sciences

M.D., Medicine

One of the founding members of the GW chapter of NBLHO. One of the founding members of Cafe Spanglish, a spanish speaking instruction class geared towards the patient interview.

Activities and Societies: NBLHO, Anatomy tutoring, Cafe Spanglish

University of Southern California

B.S., Biological Sciences

Activities and Societies: Trojan Marching Band, CHE, LMSA

Craig Angelich, PA-C


Craig is our Certified Physician Assistant and is responsible for overseeing and delivering most of the medical procedures in our clinic. He has been a licensed PA for 15 years and has 30 years experience in medical practice overall with extensive clinical experience in the evaluation and management of musculoskeletal conditions.


He has supervised the Orthopedic department  fracture clinic at a major regional health facility as well as assisting in the operative setting for more than 10 years ranging from arthroscopic procedures to total joint arthoplasty. Craig has a particular interest in Sports Medicine and Spinal Rehabilitation.


If you would like to receive stem cell treatment in Ventura County, CONTACT US or call (310) 507-9464 today!