Meet the Experts

Ana Cristina Trisan

PA-C, Founder, White Coat Beauty

Ana Cristina Trisan MMS PA-C is White Coat Beauty’s CEO & Founder. She’s a Physician Associate with close to 10 years of experience in Dermatology and Medical Aesthetics. Ana Cristina received her bachelor’s degree from the University of Miami in Coral Gables, Fl and Her Master’s Degree in Medical Science from Saint Francis University in Loretto, PA. Ana began her career in Plastic Surgery where she specialized in surgical and non-surgical treatments for the first part of her medical career. She then moved onto practicing General & Cosmetic Dermatology where she mastered her passion and skills for injectables, surgery and energy devices such as lasers to improve skin quality. Her artistic and 360 approach to aging allows her to achieve the best possible aesthetic results for her patients. As a skilled injector, Ana has traveled nationally and internationally to learn the most innovative and safest anti-aging procedures and protocols. Investing in education and advancement is a life-long pursuit which has led Ana Cristina to be voted among America’s top 100 cosmetic injectors for the past 4 years.

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Barbara Brandt

APRN Internationally Certified Injectables Trainer

Barbara Brandt, APRN, is an internationally certified Injectable trainer who has successfully trained hundreds of practitioners on facial injectables including Botulinum Toxin, dermal fillers, PDO Threads and lasers. She entered the healthcare industry 20 years ago and over the last 8 years has devoted herself to non-surgical aesthetics both in practice and through her trainer roles. In 2017 she became a Merz Aesthetics National Clinical Trainer and Medical Aesthetic Consultant. In 2020 she joined Suneva Medical as a national trainer for Silhouette Instalift and she also became a National Clinical Trainer for Medyglobal. Dually-licensed in Florida and Nevada, Barbara currently sees her patients in both Miami and Las Vegas. As a master injector and trainer, she also continues to travel around the world to train with the most renowned aesthetic providers. She believes wholeheartedly that in order to be a great teacher, one must continuously seek knowledge to offer alumni the most up-to-date techniques and advances in the industry. Barbara also brings DentaSpa alumni the value of having professional experience within dentistry. Barbara received her medical degrees from Barry University in Miami. She is also a consultant and trainer for the International Academy of Facial Aesthetics.

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Debbie Tay


Debbie Tay RN, MSN, FNP-BC, RNFA is an aesthetic Nurse Practitioner and Master Injector since 2010. She is an Allergan AMI peer to peer trainer & Galderma GAIN trainer who has trained countless practitioners on the art and science of facial injectables. She currently works at OU Beauty Medspa, one of Galderma’s and Allergan’s top accounts, as their master aesthetic lead injector. Through her years of practice and teaching she has become very well versed on both the Galderma and Allergan portfolios and their diverse properties to achieve optimal correction. Debbie is a passionate trainer/mentor and enjoys sharing her invaluable expertise with fellow aesthetic injectors. She believes in the artistry that provides a natural result, helping her patients embrace the idea of aging gracefully in every decade. Prior to her career in aesthetics, she worked as a neuroscience nurse at Cedars Sinai Hospital and as a nurse practitioner at an orthopedic spine practice assisting in surgery for six years. Continuing her path in neuro, she became a Stroke Coordinator at Huntington Memorial Hospital and led the hospital to achieving the Primary Stroke Center from The Joint Commission.

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Alexa Maestrone


Alexa employs a refined and discerning aesthetic eye coupled with crucial anatomical knowledge and experience in the areas of plastic surgery and medical aesthetics. Alexa worked for over three years alongside one of New York’s most prestigious plastic surgeons whom she credits as a mentor with regard to enhanced knowledge of facial anatomy, proficiency in medical aesthetics, and developing her approach as it pertains to patient care. Throughout her years of experience in medical aesthetics and cosmetic surgery, Alexa has helped patients from diverse backgrounds and across ages, with personalized procedures and care designed to maximize patient experience and outcomes. Graduating with cum laude honors, Alexa earned a Master’s of Science in Nursing – Family Nurse Practitioner from Wagner College, Evelyn L. Spiro School of Nursing. In addition to her experience in medical and surgical aesthetics, Alexa’s professional experience includes employment as a Nurse Practitioner in neurosurgery and as a Registered Nurse in the neurosurgical ICU at NYU Langone Medical Center. When she’s not treating patients, Alexa enjoys horseback riding, skiing, traveling, and spending time with her family including her dogs - Wolf and Paco.

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Alexandra Riguero


Alex has been practicing for over 8 years. She received her Bachelor of Science from the University of Miami. She then completed her Master in Medical Science Degree from Nova Southeastern University’s Physician Assistant Program where she graduated with honors. A Miami native, she speaks Spanish fluently. She began her career in aesthetic plastic surgery and family medicine, gaining invaluable experience not only in cosmetic procedures such as neurotoxins and fillers but a well rounded appreciation for medicine as well. She is currently practicing with Dr. Kenneth Rosen, MD a dermatologist in Miami. As a Physician Assistant in dermatology she can diagnose and treat a variety of skin conditions in children, adolescents, and adults in addition to performing cosmetic procedures. Alexandra has advanced training in many cosmetic procedures including neurotoxins, a variety of fillers, kybella, laser hair removal, microneedling, chemical peels, and vein removal.

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Madison Holmes


Madison is a certified nurse practitioner and Master Level Injector who specializes in non-surgical techniques for enhancing the face and body using cosmetic injectables. She has a keen eye for attention to detail and precision. Madison prides herself on getting a clear understanding of each client’s facial structure and applying just the right combination of technique, artistry and product to bring about a natural refreshed appearance. She is certified in Galderma, Allergan, and Merz products. She has received training from the influential likes of Dr. Steve Yoelin, Dr. Arthur Swift, Dr. Steven Fagien, and Dr. Steven Weiner. In addition, she provides both fundamental and advanced training to physicians and other providers all across the southeast. Madison focuses on thorough patient education and understanding to develop rapport and establish a trusting provider-patient relationship. In her free time, she loves spending time with her husband, Jonathan, and golden retrievers, Chase and Charley. They enjoy boating, traveling, and cheering on the Alabama Crimson Tide football team!

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Dr. Mica O’Gilvie


Dr. Mica O’Gilvie graduated with her Masters in Nursing as well as her Doctorate as an Acute Care Nurse Practitioner. Mica specializes in cosmetic dermatology for all skin types and a specialization in ethnic aesthetics.She takes pride in her motto of Planning + Execution gives a controlled outcome.Mica has an eye for symmetry and precision, focusing on safe and natural results. She is a motivated, energetic, proactive and enthusiastic individual who utilizes her artistic skills and comprehensive clinical knowledge to provide excellent patient care.Mica was trained by and continues to work alongside some of the country’s most highly esteemed plastic surgeons and dermatologists, thus enhancing her skills with clients as well as aesthetic procedures.Using her diverse background and multiple skill sets, Mica takes an individualized approach to aesthetics and tailors her treatments to achieve aesthetically pleasing results for each patient.

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Chelsea Vacca


Chelsea is the owner and lead-injector at Lotus Aesthetics and Wellness. She is a board-certified nurse practitioner, specializing in aesthetic medicine with a background in emergency medicine, plastic surgery, trauma and neurology. She graduated with her Master's of Science in Nursing from Nova Southeastern University, and Bachelor's in Nursing from University of Central Florida with nearly 10 years of experience in medicine.  She greatly values continuing education and has trained with both Allergan and Galderma, focusing on facial balancing, facial anatomy, advanced filler techniques, and lip filler. She is very proficient in strategically placing filler and customizing treatment plans for each individual patient.

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Melissa Danin


Melissa is a bilingual Family Nurse Practitioner, board-certified through the American Nurses Credentialing Center (ANCC). She began her nursing career in cardiology then transitioned into plastic surgery where she spent years working alongside a renowned plastic surgeon in South Florida. She obtained her Masters degree from Florida Atlantic University and now specializes in rejuvenating treatments such as neurotoxins, fillers, PRP, sculptra and resurfacing lasers. Melissa has an eye for facial symmetry and delivering natural results for her patients. She is dedicated to continuing her education and remaining current on the latest trend in the ever evolving field of aesthetic medicine.

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Michelle Chapman


A Dedicated Nurse Practitioner and Owner of MC Aesthetics. With a wealth of experience in nursing and a passion for aesthetics, she is an expert injector who provides services to the Tampa and Orlando regions. Michelle has honed her aesthetics skills while working at a Medspa as an injector. She embarked on a journey of continuous growth, seeking training opportunities globally to refine her techniques and expand her knowledge. These experiences have helped shape her into the injector she is today. In 2022, Michelle embarked on a new and exciting venture by converting a Mercedes Sprinter into a mobile spa, which gave birth to MC Aesthetics. Michelle is passionate about continuing education and delivering natural results. Michelle’s focus is on continuing education and providing natural results.

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