Meet the Team

Meet the Team

Dr. Sharon M. Seneczko


I am the owner of Southern Hills Veterinary Clinic, which I founded in 1999. I received my veterinary degree from the University of Illinois in 1989. At home, I have one bird, six dogs, two cats, three horses, and one mule! Outside of work, I enjoy horseback riding, drawing, skiing (cross-country), and gardening.

Dr. Nicole Eller

Associate Veterinarian

Dr. Eller started practicing equine medicine upon graduation from the University of Minnesota in 1999. She ran Siete Leguas Equine Veterinary Service and Reproduction Lab from 2002-2015. In 2013 Dr. Eller started a Master’s degree in Veterinary Forensics, which lead her to a position as Field Veterinarian for the Field Investigations and Response Team of the American Society for the Prevention of Cruelty to Animals (ASPCA). In this position she worked all over the US and the USVI on large – scale cruelty cases and natural disasters. Dr. Eller is a long-time member of the American Association of Equine Practitioners, and currently sits on their Equine Welfare and Public Policy Council. She moved from Minnesota to South Dakota in 2017, and lives west of Custer with her husband, who is a horse trainer, and their 4-legged and winged family. Please contact the clinic to schedule equine calls with Dr. Eller!


Valerie Wente<br>Veterinary Technician  photo

Valerie Wente
Veterinary Technician

Valerie has been with the clinic since 2009. She is a graduate of the University of Minnesota - Crookston with a Bachelor's of Science degree in Equine Industries Management. Valerie and her husband, John have two dogs, two horses, and a cat. She enjoys a variety of outdoor activities including hiking with her dogs, spending time with her horse Tristan, and improving their horsemanship skills both in the arena and on the trails. She also enjoys spending time with family, going on trips, fishing, hunting, camping, reading, and watching movies. 

 Rachel Hyer<br>Veterinary Technician photo

Rachel Hyer
Veterinary Technician

Rachel has been with the clinic since 2005. She received her degree in Animal Science from ICS in 2000. She has five dogs, five cats, and two horses. She has always loved animals and has been working in the animal world since 1998. Rachel enjoys hiking, riding, training dogs, and spending time with her pets and family. She also shows dogs in confirmation, agility, obedience, herding, and rally obedience. 

Robin Post <br/>Veterinary Technician photo

Robin Post
Veterinary Technician

Associates Degree in Veterinary Technician from U of M. Married High School sweetheart and have 2 boys ages 25 and 27 both in the Air Force. Love to walk my dogs Zeus (a German Shepherd) and Buffy (Pomeranian). Also love to ride my Tennessee Walking Horses, kayak and explore the Black Hills with the ATV. 

Laurie Arthur<br>Bookkeeper photo

Laurie Arthur

Nancy Halbur<br>Receptionist photo

Nancy Halbur

Nancy has been with the clinic since 2011. She has two long-haired dachshunds, a cat, and two horses. Nancy enjoys the outdoors - hiking, kayaking, swimming, and horseback riding. 

Carissa Allen <br/>Receptionist photo

Carissa Allen

Denise Stewart <br/>Receptionist photo

Denise Stewart

Denise enjoys traveling, hiking, arts and crafts, music, and spending time with family and friends. Denise has two dogs:  Chase is an Italian Greyhound and Maxey is a Chihuahua/Terrier mix.

Southern Hills Animal Clinic

12478 US Highway 16A

Custer, SD 57730

For general information, questions, appointment requests, call us at:

(605) 673-4996
Email Us:

After Hours Emergencies: Please call The Emergency Veterinary Hospital in Rapid City
(605) 721-0789.


Monday 8:30am - 5:00pm

Tuesday 8:30am - 5:00pm

Wednesday 8:30am - 5:00pm

Thursday 8:30am - 5:00pm

Friday 8:30am - 5:00pm

Saturday 8:30am - 5:00pm

Sunday Closed