Our Veterinarians

Dr. Paul Veralli

Owner, Medical Director, Veterinarian

Dr. Paul Veralli has always had a deep-seated passion for animals thanks to the dogs and cats his family kept while he was growing up. By the time junior high rolled around, Dr. Veralli’s interest in science was blossoming. For him, a career in veterinary medicine was the perfect way to mix his fascination of science with his long-standing adoration of animals!

Dr. Veralli grew up in an Italian family in Mamaroneck, New York. After attending Dartmouth College in New Hampshire, he studied at Oregon State University before completing his veterinary degree at Cornell University’s College of Veterinary Medicine. Dr. Veralli practiced veterinary medicine for many years in Massachusetts, Vermont, and Colorado before arriving here at The Animal Hospital in a relief capacity. After a year and a half, he took the opportunity to become the facility’s owner and Medical Director.

Dr. Veralli and his wife have five grown children and four wonderful grandchildren. They share their home with a Shih Tzu named Ebony and a Lhasa/Shih Tzu mix named Winston. When he isn’t spending time with his family or tending to the needs of pets here at The Animal Hospital, Dr. Veralli likes biking, hiking, gardening, and enjoying food and wine.

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Dr. Donald Dreyer

Associate Veterinarian

Dr. Donald Dreyer is an Associate Veterinarian and former co-owner of The Animal Hospital. A native of Hay Springs, Nebraska, he has called Colorado home for the past 45 years.
Dr. Dreyer received his Bachelor’s degree from Dana College in Blair, Nebraska before earning his Doctorate of Veterinary Medicine from Colorado State University.

During school, he was awarded an honorary title from the Alpha Chi National Scholastic Honor Society and was listed as a Who’s Who Among Students in American Colleges and Universities.

Dr. Dreyer’s professional interests include dermatology and quality client relations. In addition to his memberships in the American Veterinary Medical Association and the Colorado Veterinary Medical Association, Dr. Dreyer has been an active member in many Longmont associations throughout the years. The list includes the Longmont Humane Society, the Longmont Chorale, the Longmont Symphony Orchestra, and the Longmont Rotary Club!Dr.

Dreyer and his wife, Leslie, live in Longmont. They have four children and several grandchildren. A previous owner of dogs, birds, and rabbits, Dr. Dreyer now considers his clients’ pets as his own.

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Dr. Lynn Ferguson

Associate Veterinarian

Born and raised on a mountain ranch in northern Colorado, it wasn’t hard for Dr. Lynn Ferguson to develop an early love for animals. Helping and befriending animals became a way of life for him! His experiences on the family ranch made one thing very clear: Dr. Ferguson was destined for a career in veterinary medicine.

Dr. Ferguson began here at The Animal Hospital as a relief veterinarian, and was hired on full-time after a few months. Eventually, he became a part-owner and the manager of the clinic! Now, Dr. Lynn serves as an Associate Veterinarian, and particularly enjoys working closely with pet owners to best serve their animal companions’ needs. He’s also fond of surgeries because of the capability to instantly help a pet.

Over the years, Dr. Ferguson has owned everything from horses and cattle to rodents and birds. Now, he has one dog, a chocolate lab named Ranger. Ranger enjoys coming to work with Dr. Ferguson every day and greeting the clinic’s patients and clients.

When he isn’t serving pets’ needs at the hospital or spending time with family, Dr. Ferguson enjoys hiking, skiing, flying, ranching, and discovering new places.

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Dr. Katie McCullough

Associate Veterinarian

Dr. Katie McCullough grew up in the Chicago suburbs with five older siblings and plenty of dogs and cats. Her mother and grandmother were staunch pet-lovers themselves, and always took in animals in need—Dr. McCullough learned early on in life the true importance of our animal companions. For her, helping pets to live happier, healthier lives is a dream come true!

Dr. McCullough attended DePaul University in Chicago to earn her Bachelor’s degree in biology, along with a minor in Spanish. After gaining hands-on experience in the world of animal care by working as a veterinary receptionist and assistant in the city, she continued on to veterinary school at Colorado State University’s College of Veterinary Medicine and Biological Sciences.

Dr. McCullough graduated with her Doctorate of Veterinary Medicine in the spring of 2016, then moved to Las Vegas, Nevada to launch her professional career. Recently, she moved back to this area to look for a family-oriented veterinary practice that put the health and happiness of animal companions first—The Animal Hospital was the perfect fit! Dr. McCullough is proud to serve as an Associate Veterinarian with the clinic team. She has a particular passion for X-ray scans and ultrasound work, and the way these techniques give her the necessary information without the use of invasive procedures. Most of all, Dr. McCullough loves meeting the wonderful pets and animal owners of the Longmont area on a daily basis.

In her time away from the hospital, Dr. McCullough can be found spending time with friends, trying out new restaurants in the area, hiking, or relaxing with a good novel. She shares her life with three pets of her own: Brody, a quirky mixed-breed dog; a Labrador Retriever who goes by Emma; and an aging cat named Skippy.

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