Dr. Sheehan merged his practice with Western Mass Endodontics in 2010. A graduate of St. Francis College, he received a MS from Niagara University and graduated from Tufts University School of Dental Medicine. He then received his post-doctoral training in Endodontics at the Harvard School of Dental Medicine in 1975 and has been providing care in the Pioneer Valley since then. He is involved with teaching and research at both Tufts and Harvard Universities and has published numerous articles over the years. When not practicing, Dr. Sheehan enjoys fishing, spending time with his grandchildren, and relaxing on Cape Cod with his wife, Joanne.