Peptide University
Meet Our Adjunct Faculty & Clinical Advisory Team
Leaders in Peptide Therapy, Precision Health & Regenerative Medicine
At Peptide University, we are proud to collaborate with some of the most respected voices in integrative and longevity-focused medicine. Our adjunct faculty are renowned clinicians, educators, and researchers who bring decades of hands-on experience, scientific insight, and passion for transforming healthcare.
Together, they help shape our curriculum, contribute to clinical training, and guide our members in applying cutting-edge peptide therapy for real-world results.
Gus VickeryMD
Chief Medical Officer · Precision Health Authority
An integrative physician and thought leader in personalized medicine, Dr. Vickery brings deep expertise in metabolic health, hormone optimization, and the clinical application of peptides to restore vitality and function.
Learn More About Gus →
Melissa Grill-PetersenDC, MS, BCHH
Co-Founder & CEO, Peptide University | Founder & CEO, Human Longevity Global
A global authority on peptide therapy and small-molecule medicine, and one of the most trusted clinical educators in the longevity space. For over a decade she has treated patients directly with peptide therapeutics, and has since trained thousands of doctors and practitioners in the clinical science, protocols, and business of a modern longevity practice. A TEDx speaker and best-selling author of The Codes of Longevity, she translates complex peptide science into protocols clinicians can act on with confidence.
Learn More About Melissa →
Stephanie RimkaDC
Brain & Biohacking Expert · Mental Wellness Specialist
A leading voice in integrative health and peptide education, Dr. Rimka has a practice rooted in functional neurology, and is known for her innovative approach to cognitive health, trauma healing, and advanced biohacking. She merges science, spirit, and strategy to optimize the human experience.
Learn More About Stephanie →
Rudy EberweinMD
Metabolic & Men's Health Leader
A board-certified physician and leading expert in men's metabolic and hormonal health with over 20 years of clinical experience. He integrates evidence-based medicine with a human-centered approach to help men restore vitality, performance, and authentic connection.
Learn More About Rudy →
Jeff GrossMD
Exosome & Regenerative Medicine Expert
A Neurological Surgeon and Spine Fellowship-trained physician, he studied Biochemistry at UC Berkeley and earned his Medical Degree from George Washington University. An international award-winning speaker at biohacking and stem cell conferences, he is a regenerative stem cell and anti-aging expert, and the founder of ReCELLebrate.
Learn More About Jeff →
Julie KaesbergMD
Root Cause & Systems-Based Medicine Educator
A physician with expertise in identifying and treating underlying drivers of chronic disease, Dr. Kaesberg is passionate about practitioner education, combining clinical science with holistic patient care strategies.
Learn More About Julie →
Nafysa ParpiaND
Environmental Medicine & Chronic Illness Expert
A leading voice in detoxification and complex chronic conditions, Dr. Parpia shares advanced strategies for immune dysregulation, mast cell activation, and how peptides can support healing at the cellular level.
Learn More About Nafysa →
Gina PritchardDNP, RN, CNS, ACNP-BC
Cardiovascular Disease Prevention & Longevity
Owner and Medical Director of The Prevent Clinic and Clinical Program Director for the BaleDoneen Method, Dr. Pritchard focuses on preventing and reversing arterial disease, heart attack, stroke, type 2 diabetes and vascular dementia.
Learn More About Gina →
Grace LiuPharmD
Microbiome & Functional Medicine Specialist
Known as The Gut Goddess, Dr. Grace Liu is a clinical pharmacist, IFM trained functional medicine practitioner and founder of The Gut Institute. She teaches practitioners how to rebuild the gut microbiome in complex chronic cases using functional testing, resistant starch and targeted probiotics.
Learn More About Grace →
Meg FoleyMS
Sports Psychologist · High Performance Coach · Military Trainer
Master Coach and Longevity Advocate specializing in nervous system resilience and performance optimization. She trains elite performers and leads coaching at the Human Longevity Institute, empowering health professionals to embody longevity and thrive.
Learn More About Meg →
Nathalie NiddamCNP
Longevity Educator & Bioregulator Specialist
Certified holistic nutritionist, longevity educator and host of the LONGEVITY podcast, formerly Biohacking Superhuman Performance. Nathalie is one of the most recognized voices on peptide bioregulators and teaches Bioregulators Unlocked at Peptide University. She is an educator, not a physician.
Learn More About Nathalie →
Ian Justl EllisMD
Precision Dosing & GLP-1 Therapy Expert
Board-certified emergency physician, founder of Voafit and creator of MyLevel, a patent-pending precision dosing engine that finds the minimum effective GLP-1 dose for each patient. Medical Director of PWR Clinics and Chief Wellness Officer of NexGen MD Scientific. He teaches GLP-1 and metabolic peptide dosing at Peptide University, including titration, microdosing, side-effect management, and muscle preservation.
Learn More About Ian →
Samantha LanderFDN-P
Functional Diagnostic Nutritionist · Neuro-Metabolic Recovery Specialist
Founder of SeeFit Living, Samantha is a Functional Diagnostic Nutritionist whose clinical focus centers on neuro-metabolic restoration for women and individuals in sobriety. She bridges the gap between traditional recovery and advanced physiological optimization, integrating functional lab testing with precision protocols utilizing peptides and bioregulators.
Learn More About Samantha →
MaryAnn Martinez CoffeyR.Ph, CCN
Clinical Pharmacist · Pharmacokinetics & Regenerative Aesthetics Expert
Founder of Boutique Wellness in Winston-Salem, NC, MaryAnn Martinez Coffey is a clinical pharmacist and certified clinical nutritionist specializing in clinical nutrition and anti-aging medicine. She brings deep expertise in pharmacokinetics, BHRT, and regenerative aesthetics. Her precision approach integrates genetic testing, micronutrient optimization, hormone balancing, and receptor sensitization to help patients achieve lasting health outcomes.
Learn More About MaryAnn →"Our adjunct faculty are not only educators — they're pioneers helping shape the future of regenerative and peptide-based medicine."
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