Greg joined Segar & Sciortino as an associate in July 2002 to handle Social Security Disability and Supplemental Security Income cases. In 2015, he was named Chair of the firm's Social Security Department.

Born in Albany, New York, Greg grew up in Watertown, New York. He graduated from the College of the Holy Cross in Worcester, MA with a Bachelor's degee in Political Science in 1980. Greg attained his Juris Doctor degree in 1984 from the State University of New York at Buffalo Law School.

In 1985, Greg was admitted to the New York State Bar. He is also admitted to practice in the U.S. District Court for the Western and Northern Districts of New York.

Greg is a member of the National Association of Social Security Claimants' Representatives (NOSSCR). He is also past chair of the Disability, Labor and Employment Law Committee of the Monroe County Bar Association.

Outside of the office, Greg enjoys music, swimming, playing soccer, and watching NFL football. He is the founding manager/player for the Pittsford United Soccer Club’s Over-50 team, the Relics.

Greg credits his late mother, Gail C. Phillips, as the person who influenced his life the most, because she was able to raise three sons despite being a single mother. He established a scholarship in her honor at Watertown High School, where she taught for many years. Greg attends Browncroft Community Church in Penfield, New York. His favorite Scripture verse is Mark 5:36: “Don’t be afraid; just believe.”