Namgya has participated in numerous Himalayan expeditions, and has summitted many peaks including Mount Everest 11 times, Cho Oyu, and Ama Dablam. Namgya has been continuously working on Mt. Vinson as a guide every season for the last 6 years. During his six seasons in Antarctica he has made 20 ascents on Mt. Vinson guiding. Namgya is also general member of Nepal Mountaineering Association (NMA) & Trekking Agent Association of Nepal (TAAN).