Dr Mariana Dorbecker Contreras has been a General Practitioner since 2019 and is also an instructor of Basic Life Support and Advanced Cardiovascular Life Support accredited by the American Heart Assosciation. Since 2020, she has been actively invloved in education, teaching subjects of Human Anatomy, Medical Emergencies and Clinical Skills Development for the national program of medicine at UAG. She joined the International program of UAG School of medicine in 2024 and now belongs to the Gastrointestinal, endocrine, and reproductive systems department and clinical skills department.