Meet BioReset® Medical's Team

Dr. Shawn P Tierney

BioReset® Regenerative Medicine - DC, RMSK

Dr. Shawn P. Tierney is an expert musculoskeletal sonologist specializing in ultrasound-guided procedures such as stem cells, PRP, spinal injections, and nerve hydrodissection. He has done extensive work in Sports Medicine, Rehabilitation, and Nutrition, in addition to his Chiropractic Medicine practice these past 15-plus years.

As a leader of multiple regenerative medicine clinics in Southern California, Dr. Tierney is sought-after for his expertise and has actively assisted in the recovery of many professional athletes, including members of the U.S. Water Polo Team, the U.S. Olympic Swim Team, and players in the MLB and NFL. He is also an experienced educator, serving on the faculty of MSKUS, instructing both physicians and sonographers in musculoskeletal ultrasound.

Dr. Tierney received his degree from the Los Angeles College of Chiropractic Medicine. Before that, he was an environmental organic chemist and a personal trainer. A formidable athlete himself, he has been a nationally ranked bodybuilder.

Meet More Team Members

At BioReset® Medical, we believe that the key to optimal health and wellness lies in the connection between the mind, body, and spirit. Our team of experienced practitioners is passionate about helping our patients achieve their health goals by taking a personalized, integrative approach to their care.

Founder of BioReset® - MD, FAARM, ABAARM

Dr. Matt Cook

Dr. Cook is a pioneering regenerative medicine expert with over 20 years of experience, specializing in non-surgical, integrative treatments to promote cellular-level healing and overall wellness.

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Co-Founder & CEO of BioReset®

Barbara Branaman

Barbara is an accomplished leader with a background in both Eastern and Western medicine, driving the growth of the company's medical practice and product divisions while drawing on her personal experiences as a multiple organ transplant survivor.

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Clinical Director Of BioReset® - MD, IFMCP

Dr. Harry McIlroy

Dr. McIlroy has over 25 years of experience in integrative medicine, specializing in nutritional, plant-based treatments, and functional medicine, as well as ketamine and cannabis consults.

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RN, Aesthetician at BioReset® Medical

Heather Lanier

Heather, a nurse since 2013 with a background in esthetics, combines her passion for healing and wellness at BioReset Medical, specializing in regenerative medicine, aesthetics, and treatments like microneedling with PRP and NAD IV drips, while enjoying nature and spending time with loved ones outside of work.

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Patient Testimonials

"Dr. Cook found the root cause of my complex health issues where dozens of doctors had missed it. I am grateful for his guidance as we unwind my health issues and address the root cause."

"My conditions have been complicated, so many previous doctors threw in the towel on me. Dr. Cook stuck with me the entire way, even when the answers took time to figure out, he never gave up. I am forever grateful for his care."

"I was suffering from extreme chronic fatigue. BioReset Medical's IV therapy and especially NAD+ restored my energy over several months of treatment. I went from being in bed or on the couch all day to back up and engaging with the world again! Thank you BioReset!"

The Next Step To Improve Your Health

Whether you are seeking treatment for a specific condition or looking to optimize your overall health and wellness, we are here to help. Please feel free to contact us to schedule a conversation with one of our providers. We look forward to hearing from you and helping you on your journey to optimal health.

An older gentlemen getting help from a nurse while lifting weights.