Mark Dulin leads an active career as a performer and educator in Atlanta, Georgia. As an orchestral musician he is a former member of the Charlotte, Jacksonville Symphonies and has performed with the Charleston, Winston Salem, Greensboro and Tenerife Symphony Orchestras. 

He is a member of the Atlanta Chamber Brass and has performed with the Emerson String Quartet, giving the North American Premiere of Dimitri Shostakovich’s op.41A. He is a founding member of the Atlanta Chamber Brass. Mark is the host of the channel Mark's Mouthpiece where he presents engaging interviews with top brass players from around the globe, like Thomas Gansch, Frits Damrow, Jim Wilt, etc.

Dulin is a faculty member at Purdue University Fort Wayne and LaGrange College. He has served on the faculties of the University of Akron, Winthrop University, Appalachian State University and the University of North Florida. He has presented masterclasses and lectures at the Juilliard School, the Eastman School of Music, the Cleveland Institute of Music, Illinois State University, Western Illinois University, the University of Iowa, the Trumpet Festival of The Southeast and the Georgia Music Educators Association. Additionally, Dulin has hosted regional trumpet festivals in Ohio and South Carolina

He has written articles for the ITG Journal including interviews with Hakan Hardenberger, Gabor Tarkovi, Raymond Mase and Kevin Cobb. He is the co-editor of Vincent Cichowicz Long Tone Studies, Flow Studies Volume I and II all published by Studio 259 Productions and Balquhidder Music as well as Vincent Cichowicz Fundamental Studies For The Developing Trumpet Player, published by Hal Leonard Music.

Dr. Dulin holds degrees from Indiana University, the University of Cincinnati and SUNY Stony Brook and is a Vincent Bach Performing Artist. He is a student of John Rommel, Marie Speziale, Kevin Cobb, Joe Phelps, Michael Sachs, James Pandolfi and John Entzi.