Meet Our Team

Appointment
Dr. Brian Siever, DVM

Dr. Brian Siever, DVM

Veterinarian

At the age of 5 years old and after the loss of his own dog, Brian Siever decided he wanted to become a veterinarian when he grew up. Dr. Siever earned his Bachelor in Animal Science from the University of Illinois Champaign- Urbana before beginning Veterinary training at Royal Veterinary College in London, England. He then transferred to the University of Illinois College of Veterinary Medicine where he graduated in 1999 with his Doctorate of Veterinary Medicine. He met his wife, Cindy, while attending the U of I where she worked as an ER and ICU Veterinary Technician. Dr. Siever moved to Galesburg, Illinois where he started his Veterinary career at Knox Pet Clinic. He is a member of the Illinois State Veterinary Medical Association and the American Veterinary Medical Association.

Dr. Siever and Cindy were married on a beach in the Bahamas in 2000 and have 4 children, Rebecca, Alison, Griffin, Seth, and 2 grandchildren AJ and Maleah. The Siever family lives on a farm outside of Knoxville, Illinois where they enjoy gardening and raising farm animals including chickens and ducks. The family also has 2 indoor cats, 3 barn cats, and 4 dogs including 2 large Great Pyrenees dogs that guard the barn animals.

In his free time, Dr. Siever enjoys bike riding, shooting sports, woodworking and wire bending. He is also a member of Community Bible Church in Knoxville, Illinois.

Dr. Becca Schwieter, DVM

Dr. Becca Schwieter, DVM

Veterinarian

Dr. Becca Schwieter joined our growing team at Knox Pet Clinic in June 2020. Dr. Schwieter has been a familiar face around the clinic due to her spending many hours shadowing some of our doctors. Dr. Schwieter received her associate’s degree in Science from Carl Sandburg College followed by her Bachelor’s degree from Knox College with a major in Biology and a minor in Spanish. She completed her studies at Midwestern University receiving her Doctorate of Veterinary Medicine in the spring of 2020. She has 3 pets at home, Gingerpoodles a 9-year-old Domestic Long Hair cat, Sugar a 27-year-old Paint horse, and Wheatie a 6-month-old Paint horse. In her free time, Dr. Schwieter enjoys spending time with her horses, photography, and watching Netflix and Hulu.
Dr. Megan Blackwell, DVM

Dr. Megan Blackwell, DVM

Veterinarian

Dr. Blackwell joined our staff at Knox Pet Clinic in August of 2009. She has her Bachelor’s degree in Animal Sciences as well as her B.S. in Veterinary Science and her Doctorate of Veterinary Medicine all
from the University of Illinois Urbana-Champaign.

Dr. Blackwell is originally from Lewistown, Illinois where she was a member of 4-H and FFA showing and judging livestock and participating in dog obedience competitions. Dr. Blackwell lives in Galesburg with
her domestic shorthair cat, Mia. In her free time, Dr. Blackwell enjoys traveling, shopping, skiing, and hiking.

Dr. Blackwell is a member of the American Veterinary Medical Association and the Illinois State Veterinary Medical Association.

Dr. Josephine Swanson, DVM

Dr. Josephine Swanson, DVM

Veterinarian

Dr. Swanson is a native of the Quad Cities where she attended Augustana College and received her Bachelors in Biology. She then attended the University of Illinois where she completed her Doctorate in Veterinary Medicine.

From a young age, Dr. Swanson loved animals. She wanted to be a vet so she could not only help animals but also help owners learn more about their pets and to provide the best possible care for them. What she finds most interesting is the variety of animals, in addition to seeing cats and dogs, Dr. Swanson does basic health checks on exotics and pocket pets.

Dr. Swanson enjoys spending time with her family including a huge extended family, a brother, and sister, a brother-in-law and a niece and nephew. She also enjoys watching movies and visiting historical sites. Dr. Swanson has a terrier mix, Wally, who is pictured with her here.

Jean Bird

Jean Bird

Receptionist

Jean joined Knox Pet Clinic in July 2017 as a part-time receptionist. Jean has her BA in Music from Elmhurst College and MS in Counseling and Student Personnel from Oklahoma State. Jean lives in Knoxville with her daughters, Mikayla (13) and Teagan (9). The family also includes 4 pets: Ellie (Treeing Walker Coonhound), Daisy (Pitbull), Oreo (black domestic shorthair cat), and Thatcher (tiger-stripe cat). In her free time, Jean enjoys singing at her church, reading, playing board games with her daughters, hiking with Ellie and Daisy, and relaxing with her cats.
Jackie Derham, CVT

Jackie Derham, CVT

Receptionist

Jackie has been employed at Knox Pet Clinic since October 1988. Jackie attended high school at Knoxville High School and then she attended Carl Sandburg before going to Parkland College to get her Veterinary Technician certification. Jackie has a beautiful Golden Retriever named Shea. In her free time, Jackie enjoys reading, cross stitching, and lawn work.
Emily Hensley

Emily Hensley

Veterinary Assistant

Emily joined our team in August of 2009, working part-time as a receptionist and is now a Veterinary Assistant working with the technicians and doctors. Emily attended Carl Sandburg College and has her Associate’s in Science as well as her cosmetology license. Emily has been married to her husband Adam since 2009, and they have 3 children, Adam Jr, Mavrick, and Danika. Emily’s family also has 3 fur members: Jax (cat), Mocha (Labrador mix), and Mikey and Larry (Boxers). In her free time, Emily enjoys being outside and playing with her kids as well as writing, and drawing.

Tiffany Kelly

Tiffany Kelly

Veterinary Assistant/Receptionist

Tiffany started working at Knox Pet Clinic in October of 2014 as an animal care assistant. In the summer of 2020, Tiffany came to work at the clinic full time as a Veterinary Assistant. She is a graduate of Galesburg High School, and went to Carl Sandburg College, and is a Certified Nursing Assistant. Tiffany lives in Knoxville, Illinois with her husband TJ. They have 2 cats (Violet and Hunter) and 5 Dachshunds (Sport, Ted-e-bear, Louis, Ozzie, and Bayley). Tiffany spends her free time with her husband TJ, son and daughter-in-law Ryan and Kayleigh, granddaughters Paisley and Everleigh, and fur babies.
Ventura Stinson

Ventura Stinson

Housekeeping

Ventura has been on staff since March 2003 and is an important, yet often unseen, member of Knox Pet Clinic’s team. Ventura performs many housekeeping tasks as well as maintains the yard and plants around the clinic. Ventura lives in Galesburg with her husband David; in addition, they have a daughter, Andrea, and a grandson, Hayez. They also have 2 Huskies (Roscoe, pictured here, and Bruno) and 3 domestic shorthair cats. In her free time, she enjoys gardening, yard work, and antique shopping. Ventura loves being around animals and helping.
Katie Ross

Katie Ross

Groomer

Katie Ross has been a Pet Care Assistant at Knox Pet Clinic since August of 2015, her responsibilities include morning kennels (feeding pets, cleaning kennels, and walking pets), grooming appointments (baths, shears, and nail trims), and also working as a receptionist. Katie studied theater and music and human services at Carl Sandburg College. In addition, she graduated from Penn Foster’s pet grooming program in September 2018. Katie lives with her husband, Aaron, and their 5 fur babies; Jasper (orange
tomcat), Lily (Himalayan), Paisley (Corgi/Chihuahua mix), Theo (gray striped tomcat), and Archie (American Bulldog). In her free time, Katie enjoys watching movies, reading books, and spending time with her husband and pets. Katie’s favorite things are dancing and animals! A little fun fact, her name is Mary Kathryn but she always goes by Katie.
Cindy Siever, CVT

Cindy Siever, CVT

Office Manager

Cindy joined the staff at Knox Pet Clinic in June of 1999, she is currently the office manager handling the business and fiscal part of the practice. She is a graduate of Jefferson College in Hillsboro, Missouri where she received her Associate’s of Applied Science in Veterinary Technology. Cindy was working at the University of Illinois Champaign-Urbana as an ER and ICU vet tech when she met Dr. Siever who was there studying to become a veterinarian. Cindy and Dr. Siever have 4 children, Becca, Alison, Griffin, and Seth and 2 grandchildren AJ and Maleah. The Siever family lives on a farm outside of Knoxville, Illinois where they enjoy gardening and raising farm animals including chickens and ducks. The family also has 2 indoor cats, 6 barn cats, and 6 dogs including 2 large Great Pyrenees dogs that guard the barn animals. In her free time, Cindy enjoys reading, working out, and spending time with her family.

Liana Siegel

Liana Siegel

Receptionist

Liana earned her Associates in Accounting from Carl Sandburg College and attended Animal Behavior College for Dog Training and is ABC Certified. She shares her home with her husband Thomas, German Shepherds Heidi and Ahanna, a Rat Terrier named Peanut, and her two shorthair cats, Nyx and Leeloo. Liana has a daughter, Sabrina, and three granddaughters, Athena, Lilyan, and Jasmin. In her free time, she enjoys: reading, gardening, working out, doing puzzles, watching movies, and beekeeping. Liana uses items grown in her garden as well as bee’s wax from her hives and other natural items to make herbal holistic healing products.
Abby Greenlief

Abby Greenlief

Veterinary Assistant/Marketing and Social Media Manager

Abby joined our team as a receptionist winter of 2018 after graduating early from United High School. In fall 2020, she began on-the-job training to be a Veterinary Assistant and became the Marketing Manager in December 2020. She is currently taking classes at Carl Sandburg to pursue an Associate’s degree. Abby has 2 dogs, Chance (Yellow Lab) and Cookie (Lab mix), who she just adores. She comes from a large family with 9 siblings and a niece, as well as more family pets. When she isn’t working or at school, Abby enjoys being with her family, cleaning, cooking and baking, shopping, and taking Chance and Cookie for walks.
Logen Hendricks

Logen Hendricks

Veterinary Technician

Logen has been a familiar face around the clinic as she did two internships with us while she attended Black Hawk College to earn her Associates in Applied Science in Veterinary Technology. After she graduated in the spring of 2019, she joined our team as a permanent member. Logen has a yellow lab, Tequila, and a German Shorthaired Pointer, Goose. She enjoys being outdoors, working out, and spending time with her family.
Jenna

Jenna

Animal Care Assistant

Jenna started working at Knox Pet Clinic in August 2020 as an animal care assistant. She graduated from Galesburg High School in 2019, and she is currently studying at Black Hawk College to become a Certified Veterinary Technician. Jenna was formerly involved in 4-H where she learned how to care for pets. Jenna has 3 pets at home, Penny a 10-year-old Jack Russell, Sage a 3-year-old Pit Bull, and Pumpkin a 2-year-old cat. In her free time, Jenna enjoys reading and hiking with her dogs.
Alyssa

Alyssa

Animal Care Assistant

Alyssa has worked at Knox Pet Clinic since February 2021 as an Animal Care Assistant. She graduated from Rowva Jr./Sr. High School. Alyssa has a 9-month-old black Lab mixed named Turbo and has 3 brothers. She enjoys playing with her dog, hanging out with friends, and working on trucks.
Tanya

Tanya

Certified Veterinary Technician

Tanya joined The Knox Pet Clinic family in November 2020 after moving to Knoxville from Minneapolis, Minnesota. She graduated with an Associates degree from the Minnesota School of Business’ Veterinary Technician program. She decided to go back to school when she realized that she wanted to work with Animals. Tanya has worked as a Certified Veterinary Technician since 2011. She became Fear Free certified in early 2020 and is looking forward to sharing her knowledge with her new co-workers! Tanya lives with her husband, Ted and a very rambunctious son, Anthony who loves to play Minecraft. They have 2 domestic shorthair cats named Aries and Whitie, and a cute Border Collie mix named Charlie. In her free time she enjoys reading and spending time with her family.
We have two awesome locations for your convenience!

Galesburg

Knox Pet Clinic

658 W Main St
Galesburg, IL 61401
309-343-6156

Hours

Mon-Fri7:30am - 5:00pm
Sat8:00am - 12:00pm
SunClosed

Knoxville

Knox Pet Clinic - Knoxville

105 North Public Square

Knoxville, IL 61448

309-289-6697

Hours

Mon: 8:00am - 4:00pm
Tues: 8:00am - 4:00pm
Thurs:8:00am - 4:00pm

If you are experiencing an after-hours emergency, please call 309-342-1759
Send us a message!

If you have a question, you can complete the form below and a member of our team will get back to you as quickly as possible.