About Us

Dr. Gayle Misle, MD
Founder and Medical Director

Dr. Gayle Misle is an Anesthesiologist who has found her passion of treating the patient from the inside out. Dr. Misle excels in utilizing the most advanced cutting-edge techniques to achieve natural looking results through skin resurfacing, neurotoxin and filler injections, hair regeneration with Platelet Rich Plasma (PRP), body sculpting, melasma and hyperpigmentation treatments, vein therapy, laser hair removal, hormone balancing and vitamin therapy.

Dr. Misle is a graduate of the University of Nebraska College of Medicine and U.C. Davis Residency program. Before starting Reviv Medical Spa, Dr. Misle was the Chief of Anesthesia at the San Leandro Hospital and Surgery Center. Dr. Misle’s anesthesia background allows her to provide her patients with comfortable treatments with minimal downtown.

Megan Sosnick, MSEL
Practice Manager

Megan is a passionate problem solver that aims to provide Reviv Medical Spa’s clients with a first class and memorable treatment experience. Over the past 12 years, she has taken on many roles in the practice and is currently responsible for the business development, marketing and people and business operations at Reviv Medical Spa. Prior to this role, Megan completed her Master’s of Science in Management in Entrepreneurial Leadership at Babson College where she worked to help bring international start-ups to market in the United States. Megan brings her entrepreneurial spirit to work every day and is excited to continue to make Reviv Medical Spa a successful, innovative medical practice in the San Francisco Bay Area.

Erin Mercado, RN, BSN
Registered Nurse

Erin is a Registered Nurse and has always had a desire to work in the aesthetics industry. She has enjoyed expanding her knowledge of health and wellness while embarking on this journey at Reviv Medical Spa. Erin currently performs laser treatments and works with Reviv's weight loss program to help patients reach their health goals and desired results. Erin is looking forward to learning to perform more treatments and helping Dr. Misle run the Semaglutide weight loss program at Reviv.

Erin has been a registered nurse for 19 years. She began her nursing career by receiving her 2-year A.D.N. degree from the College of the Sequoias (COS) in Visalia, California. In 2012, Erin graduated from Frense Pacific University in Fresno, California with a Bachelors of Science degree in Nursing (B.S.N.) and received her Public Health Nursing certificate (P.H.N.). Additionally, Erin has 5 years of experience working as an Infection Prevontionist and is also certified through the Certification Board of Infection Control (CBIC).

Kelly Guevarra, LVN
Aesthetic Technician

Kelly started as Senior Education Consultant at Sephora then went to LVN school at Gurnick Academy of Medical Arts. She was introduced to Aesthetics in 2018, where she fell in love with non-surgical beauty treatments. Kelly chose medical aesthetics because she loves helping people feel better about themselves. When it comes to favorite treatments, she loves Coolsculpting due to it being noninvasive with zero downtime that gives you permanent and natural results. Being part of the Reviv team has been a huge inspiration for Kelly’s educational journey and she enjoys having the opportunity to learn something new every day at Reviv Medical Spa.

Hanadi Al Ramahi
Medical Aesthetician

Hanadi is an experienced licensed Esthetician who is deeply passionate about providing exceptional patient experiences and delivering top-notch skin care services. She believes that every patient deserves a personalized and memorable experience, and is committed to tailoring treatments to meet their unique needs and preferences.

Hanadi understands the importance of maintaining a clean and sanitary environment, adhering to strict hygiene protocols to ensure the safety and well-being of both guests and staff. In addition to her technical abilities, Hanadi possess a natural talent for creating a warm and welcoming atmosphere. She believes a warm and nurturing environment is essential for her patients to feel comfortable and relaxed during their treatment.