Regenerative Medicine at UPC
Our clinic specializes in innovative regenerative therapies to enhance recovery and relieve chronic pain.
Pain Relief in Riverside and Menifee, CA
Regenerative medicine offers natural pain relief by harnessing your body’s own healing abilities. At University Pain Consultants in Riverside, CA, our treatments include Platelet-Rich Plasma (PRP), Ketamine Infusions, Low Dose Naltrexone (LDN), Peptide Therapy, Botox injections, Red Light Therapy, PRP Hair Restoration, PRP Skin Rejuvenation, and IV Infusions — all supervised by Dr. Rainier Guiang, MD. These therapies support the body’s natural repair processes for conditions involving joints, tendons, ligaments, the spine, and soft tissues.
Important Note:
These regenerative treatments are not part of our regular pain management practice. Because they are considered elective and investigational by most insurance companies, they are not covered by insurance. Patients are responsible for the full cost of these services.
From joint pain and tendon or ligament injuries to spine-related conditions — including sports injuries of the shoulder, elbow, and knee — UPC’s regenerative treatments are designed to support a quicker recovery and return to activity. Care begins with a consultation at our Riverside or Menifee clinic, where Dr. Guiang evaluates your condition and builds a treatment plan around it. Looking for a PRP for knee pain specialist? We offer ultrasound-guided knee PRP in Riverside and Menifee.
Pain Therapies
PRP for Spine Pain
Physician-performed PRP for back and neck pain
PRP for Soft Tissue
PRP for tendon, ligament and sports injuries
Wellness and Aesthetics

New in Menifee: first PRP facial $299 (reg. $700). New aesthetics patients, book by Nov 14. Book now

Awaiting FDA Clarity
Mental Health Treatments
What Our Patients Say
Real reviews from our Riverside and Menifee clinics, via Google.
“Great”
“I cannot say enough wonderful things about my pain management doctor,Dr. Rainier Guiang. He is truly an amazing physician, and I wouldn’t trust anyone else with my care. What I appreciate most is that he doesn’t just throw medication at you and…”
“This was a godsend. I was having back troubles for the past few years and I’ve tried everything from physical therapy to peptides nothing really worked until I got the PRP shot. I’m over a month in and feel like my back…”
“My experience here has been great so far. Dr. Guiang is very kind, patient, and doctor that is willing to listen. I’m very grateful for him to take me on as a patient because my prior ketamine infusion clinic has closed. I’m…”
“I had an amazing experience with Dr.Guiang and my PRP (platelet-rich plasma) injection for my knee! I had the procedure done on July 1st, and I’m so happy with the results. I had zero pain afterward and have been feeling amazing ever…”
“I have been under the care of Dr. Rainier Guiang for years now. I suffer from lower back, and neck pain. I find Dr. Guiang to be a gentle and very sympathetic doctor. He has never once rushed me through an appointment.…”
Take a One-Minute Tour of Our Clinic
Inside the clinic
Red light therapy at UPC.














