Peptide Therapy Certification

Tyler Chamberlain, PharmD, FAPC

Compounding pharmacist · regulatory compliance

With a Doctor of Pharmacy degree from Purdue University and extensive experience as a Pharmacist in Charge and Chief of Regulations and Compliance, I bring a unique blend of expertise in sterile and nonsterile compounding, regulatory compliance, and quality assurance. My proficiency encompasses a broad spectrum of skills including formulation of standard operating procedures, mastery in compounding techniques for hazardous drugs, and ensuring compliance with FDA, DEA, and state regulations. Certified in Sterility Assurance from PCCA and licensed in multiple states, my knowledge and experience position me as a valuable resource in navigating the complex landscape of pharmacy law and compounding practices.

Gordon Crozier, DO

Medical Director, Crozier Clinic · A4M lead educator

A pioneer of genetics-based integrative medicine and Medical Director of Crozier Clinic in Orlando. Clinical faculty at the University of Kentucky, lead educator and curriculum developer for A4M, and a steering committee member of the International Peptide Society — he has trained over 250 centers nationwide in peptide therapy.

Lectures nationally on Lyme disease, mold-related illness, peptide science and glutathione; author of Healing One Cell at a Time, Ticked Off and Heal Your Cells.

Marisol Duque, MD

Integrative & bio-regenerative medicine

A medical surgeon with more than 18 years caring for patients across Latin America and Europe, specializing in integrative and bio-regenerative medicine, tissue regeneration, longevity, homotoxicology, neural therapy, and cardiovascular health.

Has treated over 10,000 patients and pioneered a regeneration technique that mimics the body’s own capacity to heal.

Ben Greenfield, MS, CSCS, C-PT, C-ISSN

Ben Greenfield, MS, CSCS, C-PT, C-ISSN is founder of Kion, Ben Greenfield Life, and LIFE OS, and globally renowned as a leader in health, fitness, and human performance whose mission is to help others become boundless—free from the constraints of time, energy, and knowledge. A New York Times bestselling author, Ben's work reaches millions of people every month through a powerful combination of podcasting, writing, speaking, and coaching. His books, such as Boundless and Beyond Training, have become essential guides for anyone looking to optimize their energy levels and achieve a life of boundless vitality.

Ben's journey into the world of health began with an insatiable drive to understand how the human body and mind can operate without limits. Armed with a degree in Sports Science and certifications in personal training, strength and conditioning, and sports nutrition, Ben quickly rose to prominence as a leader in the field. Over the past two decades, he has competed in 13 Ironman triathlons and worked with countless individuals—including executives, entrepreneurs, and athletes—to help them break free from the shackles of exhaustion, burnout, and lack of motivation.

Ben's approach to health and wellness is designed to empower people to live boundless lives—where energy is abundant, motivation is constant, and limits are nonexistent. His expertise has been sought by top media outlets, and his insights have been featured in Men's Health, Fox News, CBS, The New York Times, and Outside Magazine. But what truly sets Ben apart is his ability to translate complex scientific concepts into practical, actionable advice that enables anyone to achieve boundless energy and peak performance.

In addition to his content creation and coaching, Ben is the co-founder of Kion, a company dedicated to advancing human health through high-quality supplements and wellness products. Kion embodies Ben's commitment to helping people achieve more than they ever thought possible, providing the tools needed to live a boundless life.

Ben is also the co-founder of LIFE OS, a health operating system unifying labs, wearables, and clinician care in one platform.

Ben serves as an advisor and board member for multiple respected companies in the global wellness space, including the luxurious St. Haven Clubs by Gurner Group, Next Health, Agentis Longevity, Muse Cell Innovations, and Vesalius.

His new documentary, Boundless: The Man Who Became Human, executive produced by Zac Efron, follows 20 years of teaching the world how to master the body and what that mastery couldn't reach. It's available to stream now.

Whether through his books, podcast, or coaching, Ben Greenfield doesn't just teach you how to be healthier—he shows you how to become boundless. He is the guide you've been looking for, the mentor who will help you shatter your limits, and the inspiration you need to live a life of extraordinary energy, clarity, and purpose. Connect with Ben, and embark on your journey to becoming boundless, where your energy knows no bounds and your potential is limitless.

Abid Husain, MD, FACC, ABAARM

Cardiologist · preventive & metabolic cardiology

A board-certified cardiologist with more than two decades of practice in Colorado and Nevada, focused on advanced lipid disorders, atherosclerosis and long-term cardiovascular risk reduction.

Completed A4M’s Fellowship in Anti-Aging, Integrative and Metabolic Medicine and lectures on the cardiovascular case for metabolic and peptide therapies.

James LaValle, RPh, CCN

Clinical pharmacist · integrative & precision medicine

A clinical pharmacist and internationally recognized expert in integrative and precision medicine, with over three decades spent bridging pharmacology, nutrition and metabolic science to build individualized treatment protocols.

Author and educator on peptide therapy, hormone optimization and precision supplementation; has trained thousands of clinicians nationwide.

Kathleen O’Neil-Smith, MD, FAARM

Functional, integrative & regenerative internal medicine

A magna cum laude graduate of Boston University School of Medicine, with postgraduate training at Massachusetts General Hospital and Brigham and Women’s Hospital. Moved into functional and regenerative medicine in 2008.

An international thought leader in regenerative and peptide therapies who teaches worldwide; former member and coach of the US Women’s National Rowing Team.

Lee Rosebush, PharmD, JD, MBA

Partner, BakerHostetler · FDA & compounding law

A regulatory and patent attorney who previously worked as a registered pharmacist, now leading BakerHostetler’s pharmacy and reimbursement team and co-leading its FDA practice.

Speaks and writes widely on the Drug Quality and Security Act and FDA regulation of pharmacy compounding, with deep experience in 503A and 503B matters.

Erika Schwartz, MD

Founder, Evolved Science · A4M faculty

Dr. Erika Schwartz takes the best of conventional and integrative medicine and applies these principles to preventing disease.

For more than 30 years, Dr. Erika has been at the forefront of advanced patient care. She was one of the first doctors in the US to treat patients with bio-identical hormones and administer preventative IVs, and now she is on the forefront of prescribing peptide therapy, the next frontier of anti-aging medicine.

For Dr. Erika, work is pure joy, her legacy is to improve healthcare for the individual and remove fear and arrogance from the system. She continues to deliver cutting-edge care to all of her patients in a warm, friendly office.

Dr. Erika is a graduate of NYU, and she received her MD from SUNY-Downstate College of Medicine Cum Laude. She is a member of the prestigious Alpha Omega Alpha honor society and has authored six best-selling books for the public along with medical articles and numerous blogs, YouTube channel and bylined articles in the highest circulation publications of the world. She teaches providers as faculty at The American Academy of Anti-Aging Medicine and the International Peptide Society.

Melissa Stefko, MBA, MS, RAC, ASQ CPGP & CQA

SVP Regulatory, Wells Pharmacy Network

Melissa Stefko is the Senior Vice President of Regulatory at Wells Pharmacy Network, a leading national provider of high-quality compounded medications. With experience in Quality Assurance and Quality Control, Melissa began her career as a microbiologist and has been working in the pharmaceutical industry since 2008. She recently moved into the professional services industry, where she helps pharmaceutical manufacturers add value to their operations.

Melissa holds a Bachelor's degree in Biology with a Minor in Chemistry from Florida State University, where she co-founded the Pre-Pharmacy Informational Leadership and Learning Society. She continued her education by obtaining a Master's in Business Administration, a Master's of Science in Biotechnology, and a Regulatory Affairs Certificate from the University of Maryland Global Campus. She is also certified as a Quality Auditor and GMP Professional through ASQ.

In addition to her work, Melissa is a member of several organizations, including the Regulatory Committee for the Alliance for Pharmacy Compounding, her local ASQ and RAPS Chapters, and a Board Member for the Alliance for Pharmacy Compounding and Tampa Bay Skating Club. She believes in advancing the pharmaceutical industry through collaboration and knowledge sharing as well as expanding patient access to medications.

Elizabeth Yurth, MD, FAARFM, ABAARM

Medical Director, Boulder Longevity Institute

Elizabeth Yurth is a double board-certified physician in Physical Medicine and Rehabilitation and Anti-Aging and Regenerative Medicine, and one of the earliest physicians in the United States to bring peptide therapeutics into responsible clinical practice. Fellowship-trained in spine and sports medicine at a Stanford-affiliated group, she served as a team physician for Stanford and Santa Clara University and consulted for the San Francisco 49ers before turning her focus to the cellular science of aging.

For twenty years she has led Boulder Longevity Institute, which she co-founded as one of the first full-spectrum longevity clinics in the world, integrating hormone optimization, peptide therapy, regenerative orthopedics, and cellular medicine. Her work centers on a pathway-first model that targets the cellular machinery of aging, from mitochondrial function to autophagy and inflammatory signaling. She has played a foundational role in developing the clinical frameworks, dosing strategies, and safety protocols many practitioners now rely on, and through her Human Optimization Academy she has trained clinicians worldwide in peptide and hormone therapeutics. She holds faculty appointments with IPS, Longevity Docs, and nuBioAge.

In 2026 she was invited to present testimony before the FDA's Pharmacy Compounding Advisory Committee on the therapeutic use of compounded peptides, drawing on three decades of clinical experience to translate emerging science into protocols clinicians can use safely.