Our caring and compassionate veterinary care team!

Meet the Veterinarians & Team of Mulnix Animal Clinic in Fort Collins, CO! We’re pleased to provide exceptional vet care for your pets!

Please call us at (970) 484-1848 to speak to one of our caring veterinary staff members!

Meet Our Doctors

Dr. Michelle L Thomas, D.V.M

Dr. Thomas was born and raised in the Pacific Northwest. Her passion for animals led to a Bachelor of Science degree in Zoology at Washington State University in 1992 followed by a Doctorate of Veterinary Medicine, also at WSU. After graduating with high honors in 1996, she moved to Fort Collins and began working at Mulnix Animal Clinic. She feels very privileged to have had Dr. Mulnix as her mentor, friend and colleague for so many years. She purchased Mulnix Animal Clinic in 2015 and values the compassionate, talented and loyal Mulnix Animal Clinic team and wonderful clientele.

Dr. Thomas continually strives to improve her knowledge and stay on the leading edge to provide you with the latest treatment options. Her ultimate goal is to help educate and guide you through individualized treatment plans that will provide your pet a long, healthy and happy life at whatever life stage they may be in. She has also established a network of trustworthy specialists to consult or refer to when necessary. Her family oriented approach and enthusiastic demeanor is welcoming to everyone. She looks forward to challenging cases and meeting new and old loyal clients every day. Dr. Thomas is a proud member of the American Animal Hospital Association, American Veterinary Medical Association and the Larimer County Veterinary Medical Association.

When away from the clinic, she enjoys time with her family and all of their sporting events. Her daughter, Shelby, is in high school and softball is her passion. Her son, Garet, is in middle school and loves football and baseball. Her husband and high school sweetheart, Mike, has become an avid animal lover too. Her kids enjoy pet sitting and that has taught them responsibility, respect and appreciation of the love and companionship pets offer. When not at a kid sporting event she can be found walking the dogs, snow skiing, playing indoor soccer, reading or with friends.

Her furry family currently consists of “Bean” a rambunctious and snuggly adolescent golden retriever that is still trying to master the art of “retrieving”, “Q”, a 13 year old lab/border collie Heinz 57 that rules the roost, and 2 shelter kitties: “Duffy” aka ‘Duffer Fluffers’ a grey tabby and “Twix” the 16 pound ‘kitten’ that she and her kids came home with from the shelter. They also have various fish and Shelby’s 10 year old frog named “Watermellon”.

Dr. Kelly Gaffney, D.V.M

Dr. Gaffney is passionate in her work with animals, both big and small. She has been a warm presence of the Mulnix team since 2015. Dr. Gaffney graduated from Colorado State University in 2013. She currently practices both equine veterinary medicine and small companion animals. Dr. Gaffney believes strongly in preventive medicine, educating her clients on the best care for their pets, and building a strong foundation between herself and her clients.

Dr. Gaffney always stays current on the latest treatment and medication options available in veterinary medicine.  She believes that the best standard of care can only be given if we are constantly exploring what new strategies are out there to diagnose and treat our patients. She strives to be compassionate towards fearful pets. She believes a stress-free environment is essential for patients and has many strategies to help anxious furry ones. She considers the Doctor patient relationship a collaborative effort and can tailor treatment plans to suite both client goals and expectations as well as what is in the best interest of the pet.  She takes time to answer questions and explain case details about your pet so that hopefully an understanding of what is going on and what options are available are clear so that confidence can be gained and ultimately pets succeed.

Since childhood Dr. Gaffney’s passion has been her love for horses. She currently enjoys riding and caring for her own horses; Slew her retired thoroughbred, Hershey her miniature horse, and Abraham her welsh pony. Helping her keep everyone in line are her pack of cattle dog pups. Adelaide, her youngest craziest baby is a bit of a cartoon in motion, hilarious, busy, and somewhat of a clown. Delilah is a little more introverted and challenging, but keeps things interesting with her unique personality. Finally, Berkley, the oldest and wisest of her pack is a gentle, sweet and loyal dog. He has endured a limb amputation and chemotherapy, and is now a cancer survivor for 4 ½ years!

Dr. Gaffney loves to paint and draw using many mediums, and creates mosaics, pottery, and works with stained glass. Moving from South Carolina to Colorado 16 years ago, Dr. Gaffney loves to get back to the ocean when possible, drink sweat tea, and visit her family.

Meet Our Health Care Team


Business Manager and Certified Veterinary Nurse

Amy lives in Fort Collins with her husband and son. They have a dog ‘Molly’ who loves to play soccer and a feisty kitten ‘Oreo’. In her free time, Amy enjoys spending time with her family, reading, cooking, and gardening. She has been a CVT at Mulnix Animal Clinic since 2001.


Certified Veterinary Nurse

Nicole is a Veterinary Nurse graduate from Front Range Community College. Recently Nicole has returned to Colorado State University where she is pursuing her dream of becoming a future veterinarian.  She has a passion for working with animals and has worked as a veterinary nurse for several years. Outside of work she enjoys spending time with her husband and two rambunctious dogs, Bigby and Yumi. She enjoys gardening in the summer, reading a good book, and playing board games with her family.


Certified Veterinary Nurse

Joan moved here in April from Minnesota. She arrived with her Mom and her sister and their 3 cats and 2 dogs. She worked at the University of Minnesota for 20 years. While there, she attained her nursing specialty in Veterinary Nutrition. She has been a certified veterinary nurse for the past 29 years. In her free time she enjoys photography….of everything.


Customer Service Representative/Veterinary Nurse

Chelsea lives in Wellington with her husband, Randy, their two dogs, Rue and Luna, and two cats, Badger and Archer. She is a Colorado native, and in her free time enjoys playing music and spending time with family. Chelsea is also a certified dog trainer and groomer.


Veterinary Nurse

Lane is currently going to school at CSU majoring in biomedical science. He hopes to become a veterinarian and is extremely excited to become a part of the Mulnix team to continue his path to helping furry friends every day. In his spare time, Lane enjoys hiking, biking and running in Colorado’s beautiful mountains and eating his favorite food: pancakes.


Veterinary Nurse

Christina is a recent graduate from the Veterinary Technician program at Front Range Community College and is currently in the process of becoming certified. In her spare time she loves to read, be outdoors and spend ridiculous amounts of time with her two handsome boys Snowball and Rex.


Customer Service Representative

Mya is a Colorado native who is passionate about her family, off-roading, camping and anything outdoors! She has always had a passion for animals and lives with her partner and two adopted dogs- Monster and Tyson. In her down time from Mulnix Animal Clinic and the mountains she enjoys painting, arts and crafts, and scary movies. Mya graduated as a vet assistant from Pima Medical Institute in 2009 and loves her career! She is ecstatic and proud to be a part of the Mulnix Animal Clinic family!


Certified Veterinary Nurse

Kendall is a recent graduate of the Vet Tech Institute of Indianapolis. She is a Certified Veterinary Technician that loves all animals in her field including but not limited to, cats, dogs, birds, and exotics. Kendall has hopes of attending CSU for Veterinary medicine. Her hobbies include hiking, hula hooping, and exploring new places.


Veterinary Nurse

Brooke recently graduated with her Veterinary Technology degree and just finished her internship at CSU’s Veterinary Teaching Hospital. Her passions include anything animals and traveling. Brooke hopes to one day go to Africa and work at a safari. Socializing is a huge part of her life and she loves going to downtown Fort Collins  or the mountains whenever she can.


Customer Service Representative

 Steph is a country girl and Colorado native who has always had a passion for animals. In her spare time she cares for three horses(Ike, Blue and Pilot), two dogs(Trigger and Spade), and a miniature piglet named Johnny Ringo. Most favorite thing to do is spend time with fiance (Kevin) on horseback. Steph has worked in multiple veterinary clinics and continues to do so as a joy to her life.