Dr. Kevin O.

Dr. O’Brien graduated with a BA in biology from New York University, completing the Senior Global Academic Fellowship in Biology at NYU Abu Dhabi. At the Royal Veterinary College, Dr. O’Brien’s Master’s research focused on viral-induced skin cancer in horses, which earned him an ACVP Young Investigator Award, first place for his research project, and conference travel awards during his residency. He later returned to PennVet for a two-year Comparative & Laboratory Animal Pathology Fellowship.

Today, Dr. O’Brien is a board-certified veterinary anatomic pathologist and associate professor of Comparative Pathology at the University of Pennsylvania School of Veterinary Medicine. In his role as a professor, Dr. O’Brien contributes to the education of veterinary students, anatomic pathology residents, and laboratory animal medicine residents. With years of national and international experience in veterinary education and mentorship, Dr. O’Brien brings a blend of academic insight, clinical experience, and admissions strategy to help aspiring veterinarians successfully navigate the competitive veterinary school application process.

Dr. O’Brien has reviewed countless undergraduate, veterinary, and veterinary residency applications and currently serves on the VMD Admissions Committee at PennVet. His firsthand knowledge of what top-tier veterinary schools look for—combined with his track record of mentoring students into competitive residency programs (UPenn, UC Davis, Royal Veterinary College, and others)—makes him an invaluable resource for pre-vet applicants. Whether students are refining their personal statements, preparing for interviews, or seeking strategic guidance, Dr. O’Brien is committed to helping them stand out and get accepted.

In addition to his admissions expertise, Dr. O’Brien is a passionate educator and internationally recognized lecturer with interests in comparative pathology, zoo/exotics pathology, and animal health research.