As an advocate for HIV, STI and harm reduction programs focused on MSM, Wan actively engages with underserved populations through the Kelab Belia Kebajikan Setia Alam (KBKSA/JEJAKA) platform since August 2018. As a certified Community-based Testing (CBT) officer under the Ministry of Health-Global Fund Program, he has been instrumental in assisting hundreds of MSM clients in accessing HIV and STI testing and linking them to primary healthcare. He has been involved in consultations with the Ministry of Health in Malaysia with regards to hepatitis C treatment in prison settings in collaboration with the Human Rights Commission of Malaysia, the Malaysian Prison Department and Country Coordinating Mechanism (CCM) key population representatives. He was also designated as a consultant for a Home-based Hepatitis C Self-Testing platform for key populations in Malaysia.