Antón Castellanos Usigli, MPH, is a public health consultant for Wyckoff Heights Medical Center in Brooklyn, NY, where he previously served as Director of Prevention Programs. Since 2015, Antón has been instrumental in designing and developing sexual health programs at Wyckoff that deliver services such as HIV/STI testing, STI treatment, Pre-Exposure Prophylaxis (PrEP) and linkage to HIV medical care to hundreds of clients every year. In 2016, he started an innovative online outreach strategy to link men who have sex with men (MSM) to comprehensive sexual health services through dating apps. To date, this strategy has successfully brought more than 300 new clients at Wyckoff for HIV/STI prevention services. Antón's work of HIV prevention in Brooklyn was featured by The Guardian and Vox.

Antón is a Member of the Global Advisory Board (GAB) for Sexual Health and Wellbeing, a group of sexual and reproductive health (SRH) leaders brought together by Durex, who have pioneered in the development of the “triangle approach” linking sexual health, sexual rights and sexual pleasure for public health health programs and policies worldwide. In this role, Antón co-developed a training toolkit for future health care providers on how to implement quality SRH services based on the GAB’s triangle approach, as well as guidelines on inclusivity about sexual orientation and gender identity/expression for Durex. 

He is also a Member of the National Board of Directors of PFLAG, the largest organization in the United States uniting LGBTQ people with families, friends and allies. Antón has a Master of Public Health from Columbia University and is a Doctor of Public Health Candidate at the Harvard T.H. Chan School of Public Health.