Founder & Lead Injector
Maria Barraza is a Board-Certified Family Nurse Practitioner (FNP-BC) with a Master's Degree in Nursing and over a decade of experience in aesthetic medicine. With a passion for helping patients look and feel their best, Maria combines advanced medical knowledge with an artistic eye to deliver safe, natural-looking results.
Fluent in both English and Spanish, she is dedicated to providing personalized, patient-centered care to a diverse community. Maria specializes in cosmetic injectables, skin rejuvenation, wellness treatments, and medical aesthetics, focusing on enhancing confidence while maintaining each patient's unique beauty.
As the founder of OnSite Wellness Now, Maria is committed to helping her patients achieve their aesthetic and wellness goals through education, integrity, and exceptional care.
Master's Degree in Nursing
Board-Certified FNP-BC
12+ Years Aesthetic Medicine
Bilingual: English & Spanish
Founder & Lead Injector
Maria Barraza is a Board-Certified Family Nurse Practitioner (FNP-BC) with a Master's Degree in Nursing and over a decade of experience in aesthetic medicine. With a passion for helping patients look and feel their best, Maria combines advanced medical knowledge with an artistic eye to deliver safe, natural-looking results.
Fluent in both English and Spanish, she is dedicated to providing personalized, patient-centered care to a diverse community. Maria specializes in cosmetic injectables, skin rejuvenation, wellness treatments, and medical aesthetics, focusing on enhancing confidence while maintaining each patient's unique beauty.
As the founder of OnSite Wellness Now, Maria is committed to helping her patients achieve their aesthetic and wellness goals through education, integrity, and exceptional care.
Master's Degree in Nursing
Board-Certified FNP-BC
12+ Years Aesthetic Medicine
Bilingual: English & Spanish
Medical Director
Dr. Bernard McNamara is a respected and loved physician with over 45 years of experience and training. After graduating from the University of Massachusetts Medical School, he moved to California, and finished his 3 years of Internship and Residency in Internal Medicine at Los Angeles County – University of Southern California Medical Center. He then completed 2 years of a Fellowship program in Infectious Diseases at the Wadsworth VA Medical Center, and UCLA Medical Center. In addition to being board certified in Internal Medicine and Infectious Diseases, he obtained
a third board certification in Emergency Medicine by 1987. He continues to officially maintain his certifications in all three specialties. He currently practices full time Emergency Medicine at several Los Angeles and Orange County hospitals and is the Associate Director at one of the hospitals.

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© 2026 OnSite Wellness Now · Maria Barraza, FNP-BC
Serving Orange County · Bilingual Care