About Us

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Dr. Dr. Zareth Irwin
Emergency Medicine, Aesthetic & Performance Health Specialist
Dr. Zareth Irwin obtained his Bachelor of Science degree in 1993 and Master of Science degree in sports medicine and biomechanics in 1995 from the University of Oregon. He received his medical degree from Oregon Health Sciences University in 2004 and subsequently completed an emergency medicine residency and ultrasound fellowship. During his 20-year career as a board certified emergency physician he has taught extensively in medical education while maintaining his strong interest in the neurobiology and physiology of physical and mental health and human performance. His extensive experience in treating patients across the entire healthcare spectrum and obsession with health, performance, and longevity has provided him insight that applies to the surgical and medical techniques necessary for approaching aesthetic medicine.

In addition to his background in allopathic medicine, Dr. Irwin strongly believes in the benefits on nonpharmacologic modalities such as regular meditation, sauna treatments, cold plunges, massage, daily exercise, and a healthy diet. His passion for innovation and assisting others in achieving their individual health goals has led him to pursue further understanding of aesthetic medicine, peptide therapy, and hormone therapy. Dr. Irwin’s commitment to staying at the forefront of understanding the contributors to happiness and health span while always holding his patient’s individual goals paramount ensures that his clients receive the highest quality care and the most cutting-edge treatments available. Outside of his professional endeavors, Dr. Irwin enjoys spending time with his family, contributing to his local community, traveling, being in nature, and almost all athletic and fitness activities. He is a compassionate and trusted healthcare provider who considers it a true honor to be able to contribute to the lives of his patients.
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Registered Nurse:
RN Katerina Ostriakova
 With a rich and diverse background spanning over several years, Katerina Ostriakova brings a wealth of experience and expertise to her role as a Registered Nurse and aesthetic specialist at Essence Med Spa. Having attained her Master of Science in Nursing from the United States University, coupled with her extensive training and practical experience in various healthcare settings, including surgical centers, medical spas, and home health agencies, Katerina embodies a commitment to excellence in patient care. Her proficiency in administering sedation medications, performing dermal filler injections, neurotoxin injections, and a range of aesthetic treatments underscores her dedication to delivering exceptional results while prioritizing patient safety and comfort. Furthermore, her tenure as a news anchor and correspondent underscores her ability to communicate effectively and build rapport with clients, instilling confidence in her skills and expertise. Clients can rest assured that they are in capable hands under Katerina's care, as she continues to uphold the highest standards of professionalism and proficiency in her practice.