Our doctors utilize the online Veterinary Information Network (VIN) to link themselves to specialists around the country.


Derine Winning, DVM

Dr. Winning graduated from Colorado State University in 1997. She practiced in Montana for over six years before coming back to her home state of North Dakota in 2003. She joined Valley Veterinary Hospital in 2006 and became a partner in the clinic later that year. Since then she continues to enjoy practicing small animal and exotic medicine, performing surgery and is certified in veterinary acupuncture at Valley Veterinary Hospital. As time has progressed, Dr. Winning has established many cherished relationships with clients and their pets and enjoys “catching up” with them on their visits.

Dr. Winning’s family includes two standard Dachshunds, Doobie and Dahlia. Dr. Winning is considered starting a support group for those, like her, who are Dachshund addicts. Other than spending time with her dogs, she enjoys cooking, gardening, running, and just spending time in the country.

Kristine Haroldson, DVM – Medical Director

Dr. Haroldson grew up on a farm outside of Tappen, ND. She received a Bachelor of Science in Zoology from NDSU and then attended Kansas State College of Veterinary Medicine, where she earned her Doctor of Veterinary Medicine in 2015. Dr. Haroldson joined Valley Vet in July 2016. She enjoys working with all species but has a special interest in exotic animals. Dr. Haroldson, her husband Chris and their 3 kids share their home in Fargo with their 2 yellow labs (Daisy and Willow), 2 cats (Lola and Kia) and a crested gecko (Loki).

Dr. Vanessa Aschnewitz, DVM

Dr Aschnewitz received her B.A in Biology from Concordia College – Moorhead in 2009 and her D.V.M. from Ross University School of Veterinary Medicine in 2014 after completing her clinical year at Texas A&M University. Her clinical interests are in diagnostic and preventative medicine. She also enjoys educating clients on their pets’ health and on how to help them live long and healthy lives. She lives in Fargo with her husband and two children. Her interests outside the clinic are reading and spending time outside with her family.

Practice Manager


Carrera moved to Fargo from Washington State. She has an A.A. Degree in Gen Ed with a focus on Business. Carrera originally wanted to be a veterinarian, but life had other plans for her. After working in the human medical field for the past few years, Carrera was keeping an eye out for a career in the veterinary field. She finally found that opportunity here at our office! Carrera has a husband as well as a Dachshund named Goober, and two black cats named Bear and Kirby. In her free time Carrera likes to garden, play games, and spend time with her family/pets.

Veterinary Technicians

Vickie, LVT

Vickie joined the team at Valley Veterinary Hospital in November of 2018. She comes with 35 + years of experience. She is married to Darren and has one 26-year-old son, Devin. Vickie and Darren live on a farm in Twin Valley, MN with currently 1 dog, 2 cats, and 5 horses but these numbers are subject to change at any time! When Vickie is not working or taking care of her own animals she enjoys being outdoors, riding horse, camping, gardening, canning, quilting, crocheting, reading and spending time with family.

Alyssa, LVT

Alyssa grew up in Horace, ND. In 2018, she graduated from Ridgewater College in Willmar, MN, with an Associate in Applied Science Degree in Veterinary Technology. She joined the Valley Veterinary team in 2020. She especially loves working with the rabbits and exotics. Alyssa is married to her husband, Luis, and has three cats named Rengar, Ahri, and Comet. She also has a red-eared slider named Turtlini! In her free time, she enjoys traveling, going to concerts, doing outside activities like hiking, making art, playing games, and spending time with her family and friends.

Greta, VT

Greta grew up in Fergus Falls, MN. She graduated from Ridgewater College in May of 2021 with an Associate of Applied Science Degree in Veterinary Technology and joined the Valley Veterinary team in November 2021. She is married to her husband Andrew and has a husky named Kira and a Calico cat named Whiskey. In Greta’s free time she enjoys golfing, running, hiking, drawing, and spending time with her husband, family, and pets.

Jenessa, LVT

Jenessa grew up on a farm outside of Valley City ND. She graduated from NDSU with BS in Veterinary Technology. Jenessa fosters dogs and does other volunteer work for 4 Luv of Dog Rescue and the SNIP program. In her free time, she enjoys reading, sewing, and most of all traveling. Her favorite places she’s been include, London England, Normandy France, Turks and Caicos, and Chipiona, Spain. Jenessa is the proud mom of 1 cat, 2 horses, and 2 dogs – Carl, who was her 50th foster dog (2021) and Ivy who was her 94th foster dog (2024).

Alyssa, LVT

Alyssa grew up in Grand Forks where she started working for the animal shelter and fell in love working with animals. Alyssa graduated from Penn Foster with a Bachelor of Science Degree in Veterinary Technology. She is married to her husband Jake, and they have three dogs; Ellie, Maya, & Lyra. Alyssa enjoys spending time with her family, going to concerts, and watching movies.

Veterinary Assistants


Amara grew up in Fargo, ND. She joined the Valley Vet team in April of 2020 as a kennel assistant and became a veterinary assistant in January of 2023. Amara enjoys listening to country music, hanging out at home and watching movies. She has two DSH cats named Milo and Sprocket and one St. Bernard named Durango. Amara’s favorite breeds to work with are any big, drooly dogs!


Carmen grew up in Blackduck, MN and moved to Fargo in April of 2023. She has worked in veterinary medicine since 2016. Carmen currently has 2 dogs named Bailey and Walter. In her free time Carmen enjoy going to concerts, kayaking, lake days, and visiting family and friends back home. Her favorite cases to work on are senior patients. Carmen has rescued a total of 4 senior dogs over the course of her career and hopes to continue adopting senior dogs.


Alyssa was born and raised in Chicago City, MN and moved to Fargo for school. She is a “first year junior” at NDSU, which means she has too many credits to be a freshman! Alyssa has a 4-year-old tabby cat named Maui and grew up with large dogs in her household (mostly Rottweilers). As soon as she is able, Alyssa would like to a get a Dachshund for a change. Alyssa is planning to graduate with a degree in Biomedical Animal Science in December of 2025. She then will move on to graduate school for a DVM degree so that she can become a practicing veterinarian.


Ann is originally from Carrington, ND but moved to Fargo to attend NDSU. She is earning her bachelor’s degree with a major in animal science and a minor in plant and weed sciences as well as equine science. Ann aspires to be a geneticist once she graduates. She enjoys working with horses and hopes to start her own training facility one day, as well. Ann owns a springer spaniel named Gomer, and often enjoys going on walks with him. In her spare time, Ann also enjoys being around friends and family, drawing, and riding horses.


Becca is currently attending NDSU with a major in veterinary technology. She hopes to graduate in 2026, and then go on to continue her education in veterinary medicine. Becca has two dogs – Koda, a black lab, and Todd, a mini golden doodle! Becca also shows beef cattle in her free time!

Customer Service Representatives


Sheila grew up in Minot, ND and moved to the FM area in 2008. She attended NDSU and graduated with a Bachelor’s Degree in Veterinary Technology. Sheila enjoys spending time with her husband, Cameron and her three fur babies. She has an old English bulldog named Odin, a Boston terrier, Lambeau and a cat, Crosby. She spends most of her free time reading books, watching movies, and going for walks.