Our Veterinary Staff

Sadie Nelson

Practice Manager

Sadie attended Texas A&M University in Commerce where she obtained her Bachelor’s degree in Animal Science in 2008. She has been working in the veterinary field since 2006 and joined our team in 2016. When Sadie is not at work, she is caring for a busy household consisting of her husband, Kevin, two young sons, 4 horses, 3 dogs, 10 chickens, and one cat. She enjoys spending time outside with her family and animals including ATV riding in the mountains and horseback riding. She is passionate about engagement with the team at CMAH as well as customer service and patient care.

Tammy Spade

Tammy has been a Veterinary Technician since early 2016. Tammy joined the team at CMAH in March 2017. As a child, Tammy knew she wanted to work with animals someday, but put that dream on hold to start a family with her husband Steve. Tammy and Steve recently celebrated their 31st wedding anniversary. Tammy has 3 cats and 3 dogs. In her free time, she enjoys catching up on her favorite tv shows, spending time with her 9 grandkids, and traveling.

Lindsey Walker

Lindsey is a Texas born Tennessean. She moved back at the beginning of 2017 to be closer to her Texas family. She has been a veterinary technician for almost 4 years and has enjoyed every minute of it. Lindsey has two dogs who love to hang out in the creek and camp. She also has a cat who doesn’t care much for the outdoors. Lindsey is grateful to be a part of the team at CMAH and looks forward to new adventures!

Bronte Hampton


Bronte joined Custer McDermott Animal Hospital in 2015. She is the proud owner of a Pit Bull named Athena, and she is an animal enthusiast. She was born in Wichita, Kansas. She considers herself a Texan at heart, minus the fact that she is a die-hard Oklahoma fan. She moved to Texas when she was eight years old. She has had animals all her life, and absolutely adores them. Taking a vet tech class in high school showed her that working with animals was what she wanted to do with her life. In her free time, she enjoys exploring new places with Athena, taking her on walks and training her to do new tricks. She believes that animals let us into their lives so we should do the same for them, and a little bit more. She is thankful to be a part of the CMAH family!

Vickie Kennedy


Vickie has been a receptionist at Custer McDermott Animal Hospital since September of 2003. From 1989-2000, Vickie lived in Hong Kong, China, and the Philippines. Before moving overseas, Vickie worked 9 years for Myers Financial Corporation in the Land Development department. Currently, she lives in Frisco and enjoys the company of her cats, Callie and Hobbs. In her spare time, Vickie likes to spend time reading, seeing movies and of course spending time with her cats.

Callie Moseley


Callie has been a veterinary technician since 2008, joining the CMAH family in May of 2016. Originally from Louisiana, she spent most of her life in the Plano/Allen area. She and her husband Perry welcomed a son, Josh, in 2006, later adding 3 cats (Elvis, Willie Nelson, and Beyonstray) and a Dachshund (Drake). In her free time, she enjoys painting, reading, and volunteering at the second chance SPCA; offering her technical skills performing laboratory testing, and fostering kittens.

Frances Vaughan


After raising a family and moving to McKinney in June of 2003, Frances began to pursue a career in the veterinary field. She started out as a receptionist and attended classes to become a registered veterinary technician. With a lifelong love for animals and always having pets as part of her family, the choice was not a hard one to make. Frances joined the Custer McDermott staff in April 2006 as a veterinary technician. Helping clients take care of their pets, which in many cases are like family members, is one of the aspects of veterinary medicine that Frances enjoys the most. In her spare time, she enjoys spending time with her dogs, Polo, Noel, and Ricon. Frances also enjoys fishing, hiking, and trail riding on her Morgan horse, Skeeter.

Danielle Lumbo


Danielle is a Colorado transplant and loves anything and everything to do with traveling, exploring, and the great outdoors. Her and her boyfriend Jon spend their weekends being foodies and finding awesome, new places to try in and out of town. They have a sweet furbaby named Bronson who loves swimming! In her free time she enjoys crafting, going to the lake, and traveling! She is excited to be a part of such an awesome and caring family here at CMAH and we are excited to have her.

Kelsey Chatigny


Kelsey graduated from Stephen F. Austin State University in December 2017, receiving a Bachelor’s degree in Equine Science. She began following her passion in 2010 with volunteering at the McKinney SPCA and has continued in the veterinary field since. Kelsey joined the Custer McDermott staff in June of 2018. In the future, she plans to attend veterinary school and pursue Equine Reproduction afterwards. Kelsey enjoys working with her two dogs Sammy, a Rhodesian Ridgeback; and Chloe, a Jack Russell Terrier; competing at shows with her horse, Cuervo, and spending time with her family in her free time.

Priya Rani


Priya graduated from Allen High school and she is currently attending the small and large animal program at Cedar Valley college to pursue her career in the veterinary field. Working with animals is truly a passion of hers and she works hard to learn as much as possible while taking the best care of any animal she comes across. In her time away from the hospital she enjoys reading, painting, being outdoors, being involved with her church, and volunteering for charitable causes. She aspires to continue to work with animals and children in a nurturing environment and those less fortunate.

Sammi Richardson


Sammi joined the Custer McDermott Animal Hospital team April of 2018. Before becoming a veterinary technician in 2016, Sammi volunteered at the animal shelter, primarily with the cats. Her love for animals started in second grade when she would spend hours in the library reading nonfiction books on wildlife. Sammi has a fond interest in exotics and zoo life and plans on earning a degree in zoology and helping with research for wildlife conservation. Sammi has a Russian blue named Ozzie, and a German Shepherd terrier mix named Shunka. During her free time, she likes to read, go shopping, and watch Harry Potter with coffee! Sammi believes that every creature, big or small, soft or scaley, deserves the best quality of life and she will try her best to help keep it that way.

Curstin Williams


Curstin has lived in Texas for most her life and she has always had a very big interest in animals since childhood. Wanting to get as much experience as possible in the veterinary world, she took all the classes she could in high school, and completed a 2 year program at a vocational school allowing her to become a Certified Veterinary Assistant. In her spare time she enjoys reading and spending time with her friends and family. She is currently the owner of a schnauzer terrier mix named Bella, however she credits her childhood dog Brownie, a lab mix, for being there for her while she grew up.