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Meet Our Team

Herbie Yung , MD

Physical Medicine and Rehab, Pain

As a fellowship-trained physical medicine and rehabilitation and interventional spine specialist, Herbie Yung, MD, has extensive knowledge of the latest treatments and techniques for chronic bone, joint, muscle, and nerve-related pain. He offers a broad range of nonsurgical and regenerative treatment options and pain diagnostics, including stem cell and PRP-derived peridiscal injections, facet and sacroiliac joint injections, and Lumbar punctures. Dr. Yung takes a comprehensive approach to patient care, finding the root source of pain and working closely with his patients to ensure they can have reduced pain and improved lives with the use of alternative therapies.

A graduate of Illinois Wesleyan University in Bloomington, Illinois, Dr. Yung attended The Ohio State University College of Medicine to earn his medical degree. He then underwent residency training in physical medicine and rehabilitation at the University of Pittsburgh Medical Center in Pittsburgh, Pennsylvania. After completing his residency, Dr. Yung received extensive specialty training at the VA Greater Los Angeles Healthcare System in Los Angeles in the form of a pain medicine fellowship.

When he is not helping his patients, Dr. Yung enjoys spending time outdoors with his family and his dog.

Julia Pfaff, DO MPH

Head and Neck Surgery, Facial Plastics

Dr. Julia Pfaff is a board-certified otolaryngologist-head and neck surgeon specializing in facial plastics, disorders of the head and neck, sinus disease, allergies, and sleep apnea. Dr. Pfaff has a passion for regenerative medicine and applies these practices to her approach in medical treatment. She earned her bachelor’s degree in biochemistry from Albright College in Reading, Pennsylvania, and a master’s degree in public health from Drexel University in Philadelphia. She received her medical training at the Lake Erie College of Osteopathic Medicine in Bradenton, Florida. Dr. Pfaff completed her residency in otolaryngology head and neck surgery and facial plastic surgery at the Philadelphia College of Osteopathic Medicine.

Bryn Renda at Axis Stem Cell Institute

Bryn Renda PA-C

Nationally Board Certified Physician Assistant specializing in Regenerative Medicine and Stem Cell Therapy

As a retired professional athlete, I have a deep appreciation for the impact that sports-related injury can have on a patient’s overall quality of life. As a result, my career in regenerative medicine began by working with professional athletes to help them regain pain-free mobility and function. From there, my passion for regenerative medicine spread to helping others invest in their health and get back to living life to the fullest. I believe that every patient deserves a personalized experience on their journey to health and healing, and I am passionate about helping each patient achieve whole-body wellness through a naturalistic, holistic approach at Axis Stem Cell Institute.

Learn More About Bryn Renda

Kay M

Business Manager, Financial Coordinator

Jessica MacMichael 

Medical Assistant, Supply manager

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