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
Lead Provider
Matthew A. Schafer brings a wealth of experience to the world of men's health. With over 15 years of frontline medical service as an EMT and paramedic, Matthew has a strong foundation in emergency care and acute medical response. He earned his Master of Physician Assistant Studies from Rocky Mountain University of Health Professions in Provo, UT, and has since expanded his focus to include advanced men's wellness. His practice offers expertise in testosterone replacement therapy, erectile dysfunction, and aesthetic treatments. A native of Los Angeles County, he is deeply connected to the communities he serves and values building meaningful relationships with each patient. When he's not in the clinic, Matthew enjoys exploring the outdoors through camping, road trips, and international travel.
David A. Nyberg, M.D.
Medical Director
Medical Board of California Certification, DEA, NPI
David A. Nyberg, M.D. brings over 40 years of medical expertise to Ultimate Male, with a distinguished background in diagnostic imaging and precision medicine. As a leading physician, he now focuses on applying advanced diagnostic insights to support men’s health, hormone optimization, and longevity care. His extensive clinical experience and academic contributions—including authoring multiple medical textbooks and 150+ publications—enhance our commitment to delivering evidence-based, high-quality wellness care for every patient.
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 Nurse
With over seven years of nursing experience—including a strong foundation in critical care—I bring medical expertise and a true passion for aesthetics to every client I serve. Licensed in Washington, Oregon, and California, I specialize in helping people not only look their best, but feel their best. From advanced procedures like Botox, fillers, mesotherapy, IV drips, PRP, and laser treatments to testosterone replacement therapy and Erectile dysfunction solutions, I offer personalized care that blends science, artistry, and confidence-building. Whether you’re looking to refresh your appearance or unlock peak performance and libido, I’m here to help you feel powerful, youthful, and unapologetically confident.