Medina was the assistant curator and a docent for seven years at Mission Dolores in San Francisco. Starting in 2011 he wrote a blog about his experience as an Ohlone person in the 21st century and learning and sharing the Chochenyo language. He started a column in News from Native California called In Our Languages dedicated to writing in indigenous California languages. News from Native California is published by the non-profit Heyday, where Medina has been the Berkeley Roundhouse Outreach Coordinator since 2013. Heyday's Berkeley Roundhouse was formerly called the California Indian Publishing Program, and is dedicated to celebrating indigenousCalifornia culture and supporting the local Indian community. Medina has been on the Board of Directors of Advocates for Indigenous California Language Survival since 2012. He is also one of a few rotating hosts of Bay Native Circle, a weekly indigenous radio program and podcast which airs on KPFA.
Chochenyo language
There has been debate among linguists as to whether Chochenyo is a language or a dialect. It falls under the ISO 639-3 code for which also includes Ramaytush, Tamyen, Awaswas, and Chalon, but Medina and the Muwekma Ohlone Tribe consider it to be a distinct language. Medina was introduced to Chochenyo as a child, but began learning the language deeply around 2010 by studying the field notes produced by J. P. Harrington, who worked with native Chochenyo speakers in the early 20th century to document their language. By 2012 Medina could speak Chochenyo with others, and as he became more proficient, he began teaching his younger brother their ancestor's language as well. In 1934, the only native speaker of Chochenyo died, but in the 2000s the Muwekma Ohlone Tribe and linguists at UC Berkeley began to learn and revitalize the language, and in 2009 Northern Ohlone was reclassified from Extinct to Living by SIL International. Medina started the In Our Languages column of News from Native California and wrote the first piece in Chochenyo in 2014. He has spoken at a number of libraries, museums, and conferences about the Chochenyo language and indigenous issues. In 2015 he was chosen to read verses in Chochenyo during the Mass at the canonization ceremony for Father Serra, and he took advantage of the opportunity which would mean hundreds of millions of people hearing the language.
Ohlone cuisine
In 2018, Medina co-founded Cafe Ohlone with his partner Louis Trevino, who is Rumsen Ohlone. It is a pop-up restaurant located at the University Press Books bookstore in Berkeley. The menu changes seasonally, and ingredients are gathered by Native people around Ohlone territory. Dishes include acorn soup and acorn bread, watercress and sorrel salad with berries and seeds, quail eggs, venison, chia pudding, and a variety of teas. Meals are accompanied by information about Ohlone history and culture, and sometimes songs.
