In 2024, Pope Francis appointed him as eparch of the Ruthenian Catholic Eparchy of Phoenix, succeeding John Stephen Pazak.

[1] Beginning in 2007, he worked with Milan Šašik at the Eparchy of Mukačevo, also ministering to youth and teaching English in the seminary.

[3] In January 2015, Bubnevych was named pastor of Our Lady of Perpetual Help Byzantine Catholic Church in Albuquerque, New Mexico, and oversaw significant growth in the population of that parish during the COVID-19 pandemic.

He was also one of 5 priests from the United States who was selected to attend the Sixteenth Ordinary General Assembly of the Synod of Bishops.

[6] On 8 November 2024, Bubnevych was appointed eparch of the Ruthenian Catholic Eparchy of the Holy Protection of Mary of Phoenix, succeeding John Stephen Pazak.