Veterinarians

Countryside's Veterinarians

Dr. J. Glenn Brewer

Dr. J. Glenn Brewer

University of Georgia

Countryside Founder and Janitor Emeritus (janitor of great merit)

Dr. Brewer bought the land and started blueprints for Countryside Animal Clinic in 1979. His first patient at Countryside was an Irish Setter named Jed in February 1982. Jed visited during the construction phase, waiting for opening day.
​​​​​​​
Dr. Brewer attended the University of Georgia for undergraduate and veterinary college. He furthered his training at the Animal Medical Center in New York City and owned Clearwater Animal Hospital before moving to Deland. Dr. Brewer and his wife are high school sweethearts from Madison, Georgia.

Over the years they have taken in a multitude of animals they call pets, such as cows, horses, goats, dogs, cats, and chickens. Their breakfast room furniture still has chew marks from teething puppies. Dr. Brewer says their first child was a cat, then they had human babies.

Dr. Brewer’s primary concern has always been the family owned pet and getting to know the family. “The Countryside family of employees are a part of the community. We love participating with the schools and civic organizations for the betterment of our hometown. Of course, there is nothing more rewarding than helping pets who can’t speak for themselves.”

Dr. Stephanie Bryson

Dr. Stephanie Bryson

University of Nebraska
Mississippi State University

Team Countryside since 2002

Dr. Bryson was born and raised in Nebraska. She attended the University of Nebraska at Lincoln and earned dual Bachelor’s Degrees in Animal Sciences and Bio-Medical Science. Dr. Bryson graduated from the Mississippi State College of Veterinary Medicine. Immediately after graduation, she moved to Deland and began her career at Countryside Animal Clinic of Deland. Today, Dr. Bryson is a part owner in the clinic and Chief of Staff.

Dr. Bryson is passionate about the care of our clients and ensuring that Countryside delivers the highest level of medical care in the industry and represents a great value to our clients. Dr. Bryson has a special interest in lameness and orthopedics, and pediatric care of puppies and kittens.

She and her husband, Brandon, have two sons. They are very active in the Deland community and their church. They enjoy boating, spending time with their boys, and supporting them in their various sports activities. They are avid college sports fans, they follow the Florida Universities, the University of Nebraska, and Brandon’s alma mater, Texas Tech.

Dr. Rachael Cunningham

Dr. Rachael Cunningham

Mississippi State University

Dr. Cunningham was born in Newfoundland, Canada and grew up in Wiggins, Mississippi. She graduated from Mississippi State University College of Veterinary Medicine in the same graduating class as Dr. Bryson.

Dr. Cunningham began her veterinary career at an emergency clinic in Mississippi. She joined the Countryside veterinary team in 2002, following the recommendation of her friend and colleague Dr. Bryson.

At Countryside, Dr. Cunningham is interested in orthopedics, soft tissue surgery, ophthalmology, and dermatology. She is very skilled doctor and surgeon. She routinely performs complicated orthopedic surgeries, mass removals, emergency exploratories, and c-sections. She is also Countryside's foremost bulldog doctor.

Dr. Cunningham lives in Deland with her 3 rescue dogs and 2 kitties. She enjoys spending time outdoors with her daughter and family. They like to go running, biking, kayaking, to the beach, and camping.

Dr. Adrian Mitchel

Dr. Adrian Mitchell

University of Illinois
Kansas State University

Team Countryside since: 2012

Dr. Mitchell is originally from Illinois. She graduated from the University of Illinois with her Bachelor’s Degree in Animal Science. She graduated from the Kansas State University College of Veterinary Medicine.

She has special interests in oncology, ultrasound, internal medicine, and dermatology. Dr. Mitchell's thorough and hands-on approach makes her an excellent doctor for the long term management of complicated diseases such as diabetes and cancer.

She enjoys dance, yoga, reading books, and watching Disney movies. Dr. Mitchell and her family live in their new home in Deland with their 3 cats.

Dr. Courtney Payne

Dr. Courtney Payne

University of Florida

Team Countryside since: 2017


Dr. Payne graduated from the University of Florida with a Bachelor’s degree in Animal Science and graduated with honors from the College of Veterinary Medicine. Before vet school she worked with both large and small animals as a technician. As a veterinarian, she worked at an emergency clinic before coming to Countryside. You can expect her to practice efficient and thorough treatments on all of her patients. Along with her interest in continuing emergency medicine, Dr. Payne offers her expertise in internal medicine and exotic patient care.

Dr. Payne was born and raised in Florida. She loves living the beach life in New Smyrna with her new fiance and 2 dogs. They enjoy spending time outdoors, boating, and scuba diving. She also likes horseback riding and attending events with her retired racehorse Els. Dr. Payne travels as often as possible to places like Costa Rica, Galapagos, Spain, Italy, Budapest, and Prague. She also often visits Ocala where her family lives and owns a restaurant.

Dr. Matthew Simmons

Dr. Matthew Simmons

University of Florida
Ross University

Team Countryside since: 2005 and 2018

You may remember Dr. Simmons as one of Countryside's technician team members for 9 years prior to attending the Ross University College of Veterinary Medicine. During his time at Countryside, he graduated from the University of Florida with his Bachelor’s Degree in Animal Science. He has a special interest in large animals, and during his clinical year at vet school he attended Iowa State University which is one of the best veterinary schools in the country for swine medicine.

Born and raised in Florida, Dr. Simmons is happy to return roots here in DeLand. He feels right back at home with his Countryside co-workers and clients. He enjoys spending time with his family, cheering on the Florida Gators, and boating on the St. John’s River. He has dogs, cats, and a cockatiel named Mr. Tweet.

As a doctor of veterinary medicine, Dr. Simmons enjoys treating patients for dermatological conditions and soft tissue surgery. Client education is a benchmark of his practice. He offers thorough physical examinations and exceptional communication and understanding of his treatment protocols.

Dr. Megan Corsbie

Dr. Megan Corsbie

University of Florida

Team Countryside since: 2018

Dr. Megan Corsbie graduated with honors from the University of Central Florida with a Bachelor’s of Science Degree in Biology. She graduated from the University of Florida College of Veterinary Medicine in 2018 and also earned a Certificate of Veterinary Business Management.

She is originally from Melbourne, but has also lived all over the country in Wisconsin, Georgia, and Connecticut. She enjoys living in Florida with her dog and 2 cats. She likes riding her bike downtown to trivia nights and art festivals.

At Countryside, she offers a kind and gentle hand for her patients. One of her medical interests includes using her education to inform pet owners on the importance of annual exams, vaccinating, and heartworm medications to prevent communicable viruses and illnesses. She also enjoys ophthalmology and using our in-house diagnostic tools and procedures to treat eye injuries and abnormalities. She also provides her patients with evaluations of masses using clinical pathology.

Dr. Megan Corsbie

Dr. Lindsey Cossa

University of Florida
Lincoln Memorial University

Team Countryside since: 2018

Dr. Lindsey Cossa is originally from Wellington, FL where she worked as a receptionist and a veterinary technician. She earned her Bachelor’s of Science from the University of Florida before graduating from the Lincoln Memorial University College of Veterinary Medicine in Tennessee.

Dr. Cossa has a love for all exotic patients. She is eager to expand Countryside’s practice to include more bird, reptile, mini pig, and pocket pet patients. She helps our exotic pet owners with nutrition and husbandry education.

She and her husband live in Orange City with their 2 dogs, cat, hermit crabs, and bearded dragon named “Norbert.” They enjoy spending time with friends and family, going to Disney and the beach, trivia and craft beer, and Gator football.
​​​​​​​
Dr. Cossa is happy to be a part of the veterinary team at Countryside, she says she does it because she loves it, and that is evident in her practice and table-side manner.