May 6, 2020

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Emilia Ambrosio, MD cares for patients at CHC in Santa Barbara County. She received her Doctor of Medicine Degree from the University of Guadalajara and completed her medical residency at the University of California San Fransisco-Fresno program. Dr. Ambrosio is board-certified in family medicine through the American Academy of Family Practice and has been working on the Central Coast for over two decades.


May 6, 2020

Susan Bartolini, M.D., FAAP, received her Doctor of Medicine Degree from New York University School of Medicine, and graduated medical residency from St. Luis Children’s Hospital of Washington University, St. Louis, Missouri. Dr. Bartolini is board certified by the American Board of Pediatrics. Dr. Bartolini has been practicing on the Central Coast for the past 4 years.


January 21, 2024
Felipe Arce, MD

Dr. Felipe Arce, M.D., is a dedicated pediatrician passionate about children’s health. With over 20 years of experience in pediatrics, Dr. Arce has developed a deep understanding of the unique needs of young patients, from the earliest stages of infancy to the challenging teenage years. He believes in providing personalized care that supports physical health and emotional well-being, recognizing the importance of building trust and rapport with children and their families.

As a board-certified pediatrician, Dr. Arce is committed to staying current with the latest advancements in pediatric healthcare to ensure his patients receive the highest quality of care possible. He values the opportunity to develop long-term relationships with families, guiding them through every stage of their child’s development. Dr. Arce strives to create a warm and welcoming environment in his practice where children feel comfortable and parents feel confident in their child’s care.

Dr. Arce’s dedication to pediatric medicine is matched only by his commitment to serving his community. Fluent in Spanish, he ensures effective communication and accessibility for families from diverse backgrounds. Outside of his professional responsibilities, Dr. Arce enjoys spending time with his own family, exploring nature, and engaging in activities that bring him joy and relaxation. With Dr. Felipe Arce as your trusted partner in your child’s health journey, you can rest assured that your child will receive the compassionate and comprehensive care they deserve.


December 19, 2023
Mason Collins, PA-C

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Mason Collins is a caring physician assistant driven to make a difference through healthcare. Seeing the struggles some communities face, he felt called to improve lives by giving quality, thoughtful care. “One of the best things you can do is help others,” he says. After completing his education at Cal Poly in San Luis Obispo, Mason fulfilled his PA training at Pacific University in Hillsboro, OR.

Patients connect with Mason’s sincere way of working with them as partners in their care. He takes the time to listen and explain things clearly. He customizes plans to help each person be in charge of their health. By considering the whole person, Mason develops personalized plans that enable patients to thrive. His goal is for every individual to feel empowered in managing personal health.

Outside work, Mason enjoys being active, hiking, going to the beach, walking his dog, and being outdoors.

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