Meet Our Doctors
Dr. Baker grew up her entire life in the Hampstead area, playing soccer, basketball, and softball and riding horses. She spent many hours volunteering at Manchester Veterinary Services to gain veterinary experience during her high school years. She graduated from McDonogh School and then Virginia Tech, playing competitive soccer at both institutions. She attended the VA-MD Regional College of Veterinary Medicine and graduated in 2004. She has worked at Manchester Vet for the past 16 years and currently lives in Hampstead with her husband, Dr. Callahan, and their two daughters. Her primary interests are managing patients with long term medical conditions and hospice care.
Dr. Jeff Callahan grew up in Baltimore County. As long as he could remember, he always wanted to be a veterinarian. He graduated from Towson High School and attended the University of Delaware where he fell in love with large animal medicine, working on all aspects of the college farm. He graduated with a BS in Agriculture and went on to attend the VA-MD Regional College of Veterinary Medicine. He graduated vet school in 2004 and started practicing large animal medicine in southern PA and north-central MD. After 5 years of large animal work, he and his wife Dr. Baker purchased Manchester Vet, where he adopted the role of small animal vet. Dr. Callahan's primary interests are surgery and ultrasound. He currently lives with his wife Dr. Baker and their two children in Hampstead, and spends his free time competing in ultramarathons and obstacle course races.
Dr. Jan Wimer grew up in McLean Virginia. She earned a Bachelor's degree in Animal Science from Virginia Tech, and graduated from Mississippi State University College of Veterinary Medicine in 1998. She started practicing in mixed animal practice upon graduation, and joined the Manchester Vet team shortly thereafter. Dr. Wimer currently shares her talents between three different regional clinics, these days focusing on dogs and cats, but with a special interest in feline medicine. She currently lives in Taneytown with her husband and two children. Their farm is home to just about everything you could imagine - beef cattle, horses, dogs, cats, chickens, and ducks.
Dr. Kelsey Smith was born in England, where she discovered a love for animals at an early age. After moving to the US when she was 10, she became actively involved in 4-H showing horses and dogs. Kelsey was part of the first graduating class from Manchester Valley High School. She played field hockey, ran track and was an active member of FFA. She spent hundreds of hours volunteering at Manchester Vet during high school. Kelsey graduated with her Associates degree from Carroll Community College and transferred to UMBC where she completed her Bachelors in Biology. Kelsey attended Ross University School of Veterinary Medicine and transferred to Iowa State University College of Veterinary Medicine, where she earned her veterinary degree. She has always had a passion for preventative medicine and public health and loves to volunteer her time through the community organizations that helped shape her into becoming a veterinarian. When she is not in the office, Kelsey can be found horseback riding or spending time with family and friends.
Dr. Gabby Leather grew up in Carroll County and graduated from North Carroll High School. She has been a part of the Manchester Vet family for many, many years, where she worked to gain her experience in veterinary medicine. She obtained her Bachelors degree from St. Mary's College of Maryland, then a Masters degree from Towson University, before attending Lincoln Memorial College of Veterinary Medicine in Tennessee to earn her veterinary degree. Her primary interests are small mammal medicine and feline medicine. In addtional to cats and dogs, Dr. Leather also treats rabbits, guinea pigs, ferrets, chinchillas, hedgehogs, rats, mice, and gerbils! Outside of veterinary medicine, her interests include reading, houseplants, and spending time with her pets.
Meet Our Staff
Kari Kimmel, RVT, Practice Manager joined the Manchester Veterinary Services team as a technician in 2016 and was promoted to Practice Manager in June of 2022. A native of Hampstead, Kari has always had a passion for animals. She pursued her Bachelor's in Animal Care and Management from the University of Maryland College Park in 2015 and went on to earn her Associates in Veterinary Technology from Penn Foster College in 2018. What Kari loves most about her job is the impact she and her team make in the lives of their animal patients and their owners. She believes that Manchester Veterinary Services is unique in the way they prioritize patient care and create a positive work environment for their staff. Outside of work, Kari enjoys spending time with her husband and their furry family members: four dogs, Wilbur the French bulldog, Luther the Rottweiler mix, and Smash and Reaper the border collies, as well as three cats: Zoey, Ember, and Peach. Kari and her husband compete in agility competitions with their border collies.
