She founded the non-profit Nomadicare, which works to support and preserve traditional Mongolian nomadic culture through healthcare, films and stories.

She became one of the first two Americans to receive a certificate of Physician of Traditional Mongolian Medicine,[citation needed] an experience documented in the film Steppe Herbs, Mare's Milk, and Jelly Jars.

In 2001–2004, she conducted a study of health practices in Manlai, South Gobi, interviewing doctors, nurses, bonesetters, administrators, and nomadic women.

[6] Following the study in the Gobi, Carey conducted a seven-year assessment of the health of the Dukha reindeer herders in northern Mongolia.

From this study, the NGO Nomadicare provided training for all rural (sum) clinic/hospitals in South Gobi and Khovsgol Provinces in 2010 and 2012.

The school was based out of Middlebury, and included a correspondence and study-abroad curriculum, requiring prerequisites in western health sciences.

In addition to Steppe Herbs, Mare's Milk, and Jelly Jars and Gobi Women's Song, Carey has produced a number of films about the Dukha herders.

Carey's 2012 book, Reindeer Herders in My Heart: Stories of Healing Journeys in Mongolia, has been translated into Mongolian and French.

Carey actively promotes knowledge of and assistance for Mongolian nomads through talks, seminars, and screenings in the United States and internationally.