Dr. Barb Linnehan currently serves as the Cardiology Veterinary Consultant. Barb has worked for the NMMF as a clinical veterinarian since 2017, caring for the Navy’s dolphins and sea lions. She served as the Deputy Director of Medicine from 2020-2022, and the Director of Animal Health & Welfare from 2022-2025, leading the veterinary and medical records teams. Her marine mammal medicine experience includes transports, field operations, and advanced technique development. She has participated in the NMMF’s wild dolphin conservation work and assisted with the health assessment of dolphins in the Gulf of Mexico following the Deepwater Horizon oil spill. Prior to joining the NMMF, Barb completed a small animal internship at MSPCA-Angell Animal Medical Center in Boston, MA, and a post-doctoral fellowship at the Vancouver Aquarium in Vancouver, BC, Canada. She received her B.S. from Cornell University and her D.V.M. and Certificate in Aquatic Animal Health from the University of Florida College of Veterinary Medicine. She became a Diplomate of the American College of Zoological Medicine in 2023 with a focus in Aquatics. She is currently completing a veterinary cardiology residency at Angell Animal Medical Center, and hopes to continue advancing cardiology for aquatic species as a double-boarded specialist.