For over 20 years, Bossart was the private student of T.K.V. Desikachar studying Viniyoga. Bossart is a certified International Association of Yoga Therapist (C-IAYT) and E-RYT 500 yoga teacher. Bossart is also the Director of the Yoga Well Institute and Co-Director of Yoga as Therapy North America (YATNA).
Today, Bossart travels around the world to present workshops and trainings on yoga and yoga therapy. Bossart also regularly develops yoga interventions for scientific research, and he formerly served as the Director of Therapy and Education at the Healing Yoga Foundation in San Francisco.