Our Doctors


Thomas Ryan, DVM, ABVP

Dr. Ryan a diplomate of the American Board of Veterinary Practitioners boarded in Avian Medicine is a 1983 graduate of the Veterinary program at the University of Parma in Italy and studied also in Paris London and New York.

Being on a farm in Ireland and living in various countries drew Dr. Ryan to work with a variety of species. As a child, he raised all types of birds, reptiles, dogs, cats and rabbits, fostering his love of animals.

Thirty-two years ago, Dr. Ryan came to Maryland to work with a large, multi-person veterinary practice in Reisterstown. But an urge to strike out on his own brought him to Carroll County and his current location.

He chose to locate his office in Westminster to remain close to many of his clients and patients from Baltimore, Littlestown, Gettysburg, and Frederick, as well as Carroll County. In addition to being one of few Carroll County veterinary hospitals to work with exotic animals, his is the only county facility to use state-of-the-art intensive care unit cages to treat exotic animals. Dr. Ryan is an adviser to various group that rescues and rehabilitates wildlife which includes injured waterfowl and Raptors.


Desi Kelleher, DVM

Desi is originally from Horseheads, New York where she grew up. Desi obtained her undergraduate degree in Zoology at the New York State University at Oswego. She followed that with a Master’s Degree in Nutritional Biochemistry from Cornell University and a Veterinary Medicine Degree from Oklahoma State in 2002. Once she graduated veterinary school she spent her first year completing an equine internship at Fox Run Equine Center in Pennsylvania. Her first two years were spent at her mother’s clinic who is also a veterinarian in mixed Equine/small animal practice. She then moved to Tennessee with her husband who was serving in the military and practiced for two years in a mixed animal practice before moving to Maryland nine years ago. She then worked at a small animal clinic in Reisterstown for eight years before working for Greenbriar Veterinary Hospital in Frederick as the Medical Director.

She and her husband Ryan met while they were both students at Oklahoma State. Desi and Ryan have two children their daughter Rory, is eleven years old, her favorite activities are playing piano, dance, and musical theatre. Their son, Holden is six years old and has been active in soccer, t-ball, basketball, and karate. Both children are very active in the 4-H program in Carroll County. Their home is on three and a half acres and they have a small barn which houses their horses along with their dogs, cats, chickens, and bunnies.

Desi’s hobbies include horseback riding, gardening and she is an avid fitness enthusiast and runs in local 5K races. She is very involved in her community and teaches Sunday school for her church, volunteers for the PTO and helps with the Carroll County 4-H program.


Our Staff


Mary Fisher

Mary has worked at Feathers Scales & Tails since 1996. She has worked as a kennel tech, receptionist, technician assistant and technician. She is very much a feline advocate and has been involved with different kitten rescue organizations since she was just a kid. She currently has 17 cats of her own, some indoor and some outdoor and is always willing to give a little extra TLC to any kitty she can. Mary and her husband also own 2 parrots, a Bronze Throated Conure named Littles, and a Red Bellied Parrot named Licorice. Prior to finding her calling in the veterinary field, she was a dental hygienist for many years in the Towson area, and still has an interest in dentistry, however, these days its animal dentistry that she prefers. She and her family reside in Westminster.


Jesseca King

Jesseca grew up in Laurel, Maryland with interests in the Veterinary field. She moved to Westminster and graduated from C.C.C.C. with a degree in Animal Medicine. She has worked since 1999 in the Veterinary field. In 2003, she was hired by Dr. Ryan at Feathers Scales and Tails as a receptionist. She quickly moved to lead veterinary technician with her abilities in phlebotomy and her ability to remember patients needs and medical history. She now currently holds the position of Office Manager under Dr. Kelleher at Feathers Scales and Tails Veterinary Hospital. She is fluent in American Sign Language, extremely outgoing personality, and willingness to help the clients and their pets in any way she can. She currently resides in P.A. with her husband and two sons. She has two boys ages 22 and 12. She also is the proud owner of “Tasha” (Boxer mix), “Tova” (Calico), and “Pinkerton” (Moluccan Cockatoo) whom most clients know and adore as much as she does. She looks forward to meeting you and your pets, always.


Kelsey Downing

Kelsey has been living in Carroll County her whole life, she grew up on a thoroughbred racing farm when her fascination with animals began. She currently resides in Westminster, where she has two furry children. A 12-year-old Golden Retriever named Casie, and 3 year old Beagle named Cooper. Kelsey was recently hired at FST after serving 6 years at an emergency facility as a Vet Tech. Her hobbies include hanging out with friends and family, riding horses whenever she can and spending quality time with her doggies. Her future plans consist of having her own little farmette with horses, cows, chickens, goats, dogs, one cat and maybe, a pig or two.


Lexi Juico

Lexi Juico is originally from Baltimore, Maryland. She now lives in Finksburg, Maryland. Lexi graduated from Westminster High School in 2017 and will be graduating from Carroll Community College in May 2019 with her General Associates Degree. She is planning to continue her education at Penn Foster, striving for her certification as a Veterinary Technician. While Lexi was in high school, she attended the CASE- Animal Science program and excelled greatly. Lexi has been working for Feathers, Scales, and Tails for a year and a half. She started as a kennel technician and was recently promoted to Veterinary Technician Assistant. Lexi has had animals all of her life, which lead her to want to be in the field of veterinary medicine. Lexi is the proud owner of a 3-year-old Samoyed named Colten, and an 11-year-old domestic long-haired cat named Tristan. Lexi loves working with all of her co-workers. She is excited about the new changes coming to the hospital, and cannot wait to see what the future holds for the clinic, the team, and for herself.


Jennifer Zirbel

With a background in customer service and a deep love for all animals, Jen recently joined Feather, Scales & Tails. A Westminster native now living in New Windsor, Jen and her family recently purchased a home with lots of land for all the future animals her husband will tolerate. Jen currently has two boys, a cat, a turtle, and two fish. She has hopes to one day also have chickens, goats, a pig and lots and lots of barn cats.


Magena Straight

Magena Straight has lived in Frederick MD her whole life, she has been working in the Veterinary Medical field for 4 years and joined FST in April. She loves spending her free time riding her horse or playing with her 3 yr old Aussie Luna and her 10 yr old Bichon Max. She also owns an 8-month-old Holland Lop Phoebe! Magena is going to school online through Penn Foster to earn her Bachelor’s and become a licensed Veterinary Technician. She is very excited to have joined the FST team and learn how to work with a variety of animals!


Leanne Cole

Hello, my name is Leanne. My birthday is in May. I have always loved animals my whole life and I’ve had the amazing privilege of working with the incredible doctors and vet techs here at Feathers, Scales and Tails clinic since April 2019, as a Kennel Technician. I have worked several years in the animal field being a vet technician, kennel assistant, and dog and cat behaviorist learning everything I can about animals that I can get my hands on. Hopefully, with some more education and determination, I will go back to school and complete my bachelor’s degree in Animal Sciences and Human bacteriology and microbiology.

I love medicine and enjoy learning and watching the technicians during surgery however animals; mainly cats are my true passion. At home I have two feline friends: Scrummer is a seventeen-year-old Tortie and my beloved, dearest baby is Lolly a 7-year-old grey tiger-striped kitty cat. She is my best friend and is very, very close to my heart. Although cats are my favorite, other animals prowl in my house.

I have one, eight-year-old Male Netherland Dwarf rabbit whose name is Bon-Lon. I would love to add another feline to my heart and home but needs to be a very special case. I look forward to meeting you and your beloved fur babies when you bring them in for boarding, a grooming session or a check-up here at FS&T! Where we take care of your pets just as if they were our own.


Coryn Castellanos

Coryn grew up in Baltimore, MD and currently resides in Hampstead, MD. Coryn was recently hired at FST as Head Receptionist after working 17 years at a veterinary clinic in Reisterstown. She has a passion for all animals large and small.

She shares her home with her toy poodle Gumdrop, her dachshund Beans, along with her cat Skaddle, and ball python Joey.

In her spare time, she enjoys spending time with her husband Phil, fishing, gardening, reading, and spending time with family.


Dallas Walter

Dallas has lived in Upperco her whole life. She was raised on a dairy farm where her love for animals began. Dallas has 3 dogs, 3 cats, and an abundance of farm critters. She was recently hired at FST after serving 8 years as a vet tech at an emergency facility. Dallas is looking forward to joining the FST team to broaden her knowledge of exotics. In her spare time she enjoys spending time with her family, she is a proud mother and loves being outside.


Bridget Ward

Bridget Ward has lived in Carroll County all her life. Her love of animals she inherited from her grandmother who wanted to be a veterinarian all her life and could never turn a stray away. Bridget has three plus years of front desk experience within the veterinary field. Bridget and her husband have two pit bulls together and enjoy working on and restoring classic cars together in their free time.