Khenpo Sherab Oser Rinpoche was born near Drong Ngur Monastery in Rusar [at the border of Central and Eastern Tibet], to his father, Trithub, and mother Luyang in the year 1964.
In 1985 he received the hair-cutting ceremony [of refuge] in the presence of Thubten Shedrub, an emanation of the Incomparable One from Dagpo [Gampopa]. Having entered door of the Dharma at Drong Ngur Monastery, he made effort to train in the various ritual practices of his own tradition and engaged in the 400,000 accumulations of the preliminary practices under Khenpo Karma Tengye Rinpoche.
In 1987 he received the vows of full monastic ordination from Drubwang Pachung Rinpoche.
Arriving in [North] India in 1992, he diligently studied the principal Buddhist scriptures with Khenpo Konchog Gyaltshen Rinpoche, Khenpo Togdrol Rinpoche and Khenpo Kunmon Rinpoche at Drigung Jangchub Ling. Thereafter in Nepal, he engaged to the best of his ability in the hearing and contemplation of the various divisions of sutra and tantra at the feet of Kyabje Thrangu Rinpoche, Khenchen Pentse, Khenpo Chodzo, Khenpo Jadrel, Khenpo Choga and Khenpo Padma Gyaltsen.
[Then,] having been named an Acarya at Ka-Nying Shedrub Ling [in Boudhanath, Nepal], he served as a teacher at their foreigners' college, Rangjung Yeshe Chetho. Thereafter, in the year 2000, he received from many of the great lamas, tulkus and khenpos of the Drigung Kagyu - headed by Drigung Kyabgon Rinpoche, Kyabje Garchen Rinpoche and Choje Togden Rinpoche - The Extensive Scriptures on Mahamudra [of the Indian mahasiddhas], The Collected Works of Lord Gampopa, The Collected Works of Lord Phagmodrupa, The Outer and Inner Collected Works and Profound Teachings of Lord Kyobpa Rinpoche [Jigten Sumgon] together with The Collected Works of Lord Chokyi Dragpa. Further, he received the various collected writings of the golden mala of successive Drigung lineage [masters] and, like a vase being filled to the brim, [he received] empowerment, transmission and explanation together with oral instructions. [Thus,] he was installed as a khenpo of the Drigung Kagyu Scriptural College.
Khenpo Sherab has recently established Drigung Namgyal Ling Tibetan Buddhist Meditation Center in Tucson, Arizona, while participating in a full and active teaching schedule at home and abroad