Gregory Ashton, MD Primary Specialty: Anesthesiology Affiliations Shannon Medical Center Education Undergraduate University of Texas at AustinAustin, TX Graduate School Master's Degree University of Texas Health Science Center at Houston, San Antonio Regional CampusHouston, TX Medical School University of Texas Health Science CenterSan Antonio, TX Internship University of Massachusetts Memorial Medical CenterWorcester, MA Residency University of Massachusetts Memorial Medical CenterWorcester, MA