After serving for two years as a local church Visitation Minister and Director of Outreach in Los Angeles, Professor Montoya became the senior pastor of the First Fundamental Bible Church of Monterey Park.
Beginning with just forty members, the church has grown to more than 900 members, and under his leadership has maintained a strong evangelistic and church planting emphasis, beginning fifteen branch churches during this time.
In addition to his full-time teaching at The Master's Seminary since 1992, he has also taught biblical studies courses at Biola University, New Testament language classes at Talbot Theological Seminary, and pastoral ministry courses at Southern California School of Ministry, a school he founded for hispanic students.
Professor Montoya has also served as Visiting Professor in Church Growth and Church Planting at Dallas Theological Seminary.
Professor Montoya is a highly sought after guest lecturer and conference speaker. He has written numerous journal and periodical articles, and has authored Hispanic Ministry in North America (Zondervan, 1989).