Our Team
At Ultimate Male, our team is made up of well-qualified professionals who bring both advanced training and genuine compassion to every patient interaction. Equipped with the latest in men's wellness technologies and treatments, our team offers compassionate care that's both modern and effective. What truly sets us apart is our commitment to building real connections. We take the time to get to know each patient personally, understanding their goals, concerns, and lifestyle, so we can deliver care that feels customized and sincere. Every visit is an opportunity for us to offer support, uplift, and guide you toward lasting confidence and optimal health.
Matthew A. Schafer, PA-C
Clinical Director
Medical Board of California | DEA | NPI
Matthew A. Schafer, PA-C, brings over 15 years of medical experience to Ultimate Male, beginning his career as a paramedic before earning his Masters of Physician Assistant Studies from Rocky Mountain University of Health Professions. His clinical approach integrates emergency medicine precision with modern wellness care, focusing on testosterone replacement therapy (TRT), erectile dysfunction, medically managed weight-loss, and comprehensive hormone optimization.
Matthew also specializes in advanced aesthetic medicine, combining injectables and regenerative treatments to improve skin quality, confidence, and overall appearance. Known for his approachable manner and depth of knowledge, he builds lasting relationships with patients by prioritizing education, safety, and individualized treatment planning.
A lifelong Southern Californian, Matthew values community connection and brings both compassion and expertise to every encounter—helping men feel stronger, healthier, and more confident at every stage of life.
David A. Nyberg, M.D.
Medical Director
Medical Board of California Certified | DEA | NPI
Dr. David A. Nyberg is a distinguished physician with over four decades of clinical and academic leadership in diagnostic imaging, hormone therapy, and preventive medicine. A graduate of Stanford University and former Professor of Radiology at the University of Washington, Dr. Nyberg has authored multiple medical textbooks and over 150 peer-reviewed publications that have shaped modern diagnostic and hormonal care worldwide.
At Ultimate Male, Dr. Nyberg applies his expertise in precision medicine to optimize men’s health, hormonal balance, and longevity. His deep understanding of the internal effects of aging allows him to develop targeted, evidence-based treatment plans that restore vitality from the inside out.
Having directed advanced clinics in both the U.S. and abroad, Dr. Nyberg leads Ultimate Male with a vision grounded in education, innovation, and patient empowerment—bridging the gap between medical science and real-world wellness results.
Sabrina Sher
Aesthetic Nurse
Sabrina is a highly trained aesthetic nurse with over five years of dedicated experience in medical aesthetics. From the very start of her nursing career, she has focused exclusively on aesthetic medicine, combining advanced clinical knowledge with a refined artistic sensibility to deliver results that are both natural and transformative.
Her areas of expertise include full facial balancing, customized lip augmentation, and precision-based neurotoxin techniques for anti-aging and facial rejuvenation. Sabrina approaches each patient with a tailored strategy, grounded in anatomical harmony and guided by the individual’s unique goals and facial structure.
With a strong belief that aesthetic care should never be one-size-fits-all, Sabrina is committed to providing fully personalized treatment plans. She takes the time to listen, assess, and educate, ensuring that every patient receives safe, evidence-based recommendations that align with their preferences while achieving optimal, natural-looking outcomes.
Known for her meticulous technique, clinical integrity, and eye for detail, Sabrina is deeply trusted by her patients to deliver consistent, high-quality results in a welcoming and professional environment.
Paul Pham
Aesthetic & Men’s Health Nurse
Paul Pham is an accomplished aesthetic and men’s health nurse with over seven years of clinical experience, combining a strong background in critical care with advanced training in aesthetic medicine and hormone optimization. Licensed in California, Oregon, and Washington, Paul offers a comprehensive approach to male wellness—helping patients enhance their appearance, performance, and overall vitality.
His expertise spans testosterone replacement therapy (TRT), erectile dysfunction treatments, PRP therapy, IV drips, Botox, fillers, mesotherapy, and laser rejuvenation. Paul’s clinical practice integrates the science of internal balance with the artistry of external refinement, ensuring patients achieve natural, confidence-boosting results.
Known for his calm demeanor, precision, and patient-first philosophy, Paul delivers care that is both results-driven and deeply personal. His commitment to safety, education, and long-term outcomes makes him a trusted provider for men seeking to look, feel, and perform at their best.