Office of the President

The president’s office of The Master’s Seminary is responsible for setting its vision and mandate for training, discipleship, and academics, for guiding faculty and administration, and ensuring an unwavering commitment to founding principles and doctrine.

John MacArthur has led the seminary as president since its inception in 1986. Over that time he has continued to pastor Grace Community Church, preaching multiple times weekly. In addition to his administrative responsibilities, he teaches Expository Preaching classes and frequently speaks in chapel.

Over the past year, Dr. MacArthur has led the seminary in preparation for the 2015 Summit on Inerrancy, an event drawing over 4,500 pastors from across the globe, standing together for the authority of the Word of God. TMS students, faculty, and alumni today have a historic opportunity to serve the worldwide church as a result of the conference. This is one of the many ways in which leadership at The Master’s Seminary is committed to exalting Christ and honoring His Word.

Contact Details

To contact the president’s office, please use the following details:
Phone: 818-909-5502

Irv Busenitz, Vice President for Academic Administration
Phone: 818-782-6488


From 1974 to 1986, Dr. Busenitz was a member of the Bible Exposition faculty at Talbot Theological Seminary, and from 1977 to 1986 he also served as director of their Valley Extension Campus. Dr. Busenitz became a founding member of The Master’s Seminary administration and faculty in 1986. He and his wife Karen have been married for over 40 years and have been blessed with two married sons and six grandchildren.


Rich Gregory, Senior Vice President for Administration
Phone: 818-909-5502


Rich Gregory grew up in a pastor’s home in Michigan before attending Bob Jones University in South Carolina for a Bachelor of Arts in Bible. Upon graduation, he and his wife Michelle moved to Southern California where he received a Master of Divinity from The Master’s Seminary in 2011. Rich currently serves as Pastoral Assistant to John MacArthur, is an associate pastor at Grace Community Church, and the Senior Vice President for Administration at TMS.