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Dr. Sumner directs the Emergency and Critical Care service at MSPCA-Angell West. Dr. Sumner is a 2007 graduate of the Cummings School of Veterinary Medicine at Tufts University. She completed a one-year internship program at Angell, a three-year E/CC residency at Tufts, and then was a staff criticalist at Tufts VETS before joining MSPCA-Angell West. She is board-certified by the American College of Veterinary Emergency and Critical Care.