A paramedic turned PA, and an MD who wrote the textbooks.

Matthew brings over 15 years of medical experience to Ultimate Male, beginning his career as an EMT and paramedic before earning his Master 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, erectile dysfunction, medically managed weight loss and comprehensive hormone optimization.

He also practices advanced aesthetic medicine, combining injectables and regenerative treatments to improve skin quality and confidence. 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 and native of Los Angeles County, Matthew values community connection. Outside the clinic he is camping, road-tripping or travelling abroad.

Dr. 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, he has authored multiple medical textbooks and over 150 peer-reviewed publications that have shaped modern diagnostic and hormonal care worldwide.

At Ultimate Male he applies precision medicine to men's health, hormonal balance and longevity. His deep understanding of the internal effects of aging allows him to develop targeted, evidence-based plans that restore vitality from the inside out.

Having directed advanced clinics in the U.S. and abroad, Dr. Nyberg leads Ultimate Male with a vision grounded in education, innovation and patient empowerment.

Sabrina is a highly trained aesthetic nurse with over five years of dedicated experience in medical aesthetics. From the 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 natural and transformative.

Her expertise includes full facial balancing, customized augmentation and precision-based neurotoxin techniques for anti-aging and rejuvenation. Every plan is grounded in anatomical harmony and guided by the individual's goals and facial structure.

Known for meticulous technique, clinical integrity and an eye for detail, Sabrina is deeply trusted by her patients for consistent, high-quality results.

Paul 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, he offers a comprehensive approach to male wellness.

His expertise spans testosterone replacement therapy, erectile dysfunction treatments, PRP therapy, IV drips, wrinkle relaxers, fillers, mesotherapy and laser rejuvenation. His practice integrates the science of internal balance with the artistry of external refinement.

Known for a calm demeanor, precision and a patient-first philosophy, Paul delivers care that is results-driven and personal.