Great care starts with great people! At Roots Wellness, our team brings together experience in functional medicine, clinical care, and patient support to make your wellness journey feel personal. From uncovering the root of your health concerns to making every visit a positive experience, we’re here to listen, guide you, and help you feel your best.
Toni Tizon-Damiano, MSN, APRN, ABAAHP, FNP-C
Toni Tizon-Damiano is a Functional Medicine Nurse Practitioner and the founder of Roots Wellness. She earned her Master of Science in Nursing and Family Nurse Practitioner degree from the University of Southern California and has practiced in nursing since 2005. She is board certified through the American Academy of Nurse Practitioners and holds an additional board certification in Anti-Aging, Regenerative, and Functional Medicine through the American Academy of Anti-Aging Medicine (A4M).
Toni built much of her clinical foundation in emergency medicine, where she cared for patients in their most acute, critical moments. That experience gave her a deep respect for conventional medicine’s role in emergency and urgent care — but it also revealed its limits. Time and again, she saw patients stabilized and sent home without ever getting answers about why they’d gotten sick in the first place.
That gap is what drew her to functional medicine. Today, Toni takes a root-cause approach to health, using advanced diagnostics like DUTCH hormone testing and GI-MAP stool analysis to uncover the underlying drivers of her patients’ symptoms — not just manage them. She specializes in hormone optimization, gut health, metabolic function, and peptide therapy, helping patients move beyond symptom management toward lasting, whole-body wellness.
Mary Cait McAleer, MSN, APRN, PCCN, FNP-BC
Mary Cait McAleer is an ANCC board-certified Family Nurse Practitioner specializing in functional medicine. She earned her Master of Science in Nursing at the University of Southern California and completed functional medicine education through Functional Medicine University. Her nursing experience spans oncology, neurology, cardiology, and medical-surgical care. Caring for patients with complex conditions inspired her passion for identifying and addressing underlying contributors to illness. She is dedicated to helping patients prevent disease, restore health, and improve their quality of life through personalized care.
Marissa Simon, MA
Marissa is a Clinical Medical Assistant with nearly three years of experience in functional medicine. Passionate about compassionate, high-quality patient care, she specializes in blood draws, therapeutic injections, and assisting with in-office procedures — helping ensure every patient’s visit is comfortable and efficient.
Marissa holds certifications in Medical Assisting, Phlebotomy, and EKG as a Clinical Medical Technician. She’s dedicated to helping patients feel supported and cared for throughout their health journey at Roots Wellness.
Jessica (Jess) Morton, Patient Care Coordinator
Before dedicating herself to raising and homeschooling her two sons, Jessica built her career across Internal Medicine, Plastic Surgery, and Otolaryngology practices, gaining hands-on experience with a wide range of patients and clinical settings. Her curiosity about surgical medicine led her to pursue certification as a Nationally Certified Surgical Technologist, a credential that allowed her to assist directly in the operating room while developing a thorough understanding of both pre-operative preparation and post-operative recovery care.
That combination of clinical training and real-world experience shapes how Jessica approaches her role today. She is guided by a simple philosophy: patients deserve attentive service, genuine human connection, and moments of real joy throughout their care journey. She’s excited to bring that same dedication to every patient who walks through the doors at Roots Wellness.
Outside of work, Jessica stays busy with her family, experimenting in the kitchen, strength training, hiking with friends, and always looking for something new to learn.
Great Care Starts With Strong Roots
Great care shouldn’t depend on who you see. At Roots Wellness, every provider follows the same thoughtful, evidence-based approach, so you can feel confident you’re in good hands. From advanced testing to personalized treatment plans, we’re all about understanding your body’s needs and helping you feel your best. No guesswork and no pressure. Ready to meet the people behind your wellness journey? Schedule a consultation in Thousand Oaks, CA, today!
