Our Team

Our Team is here to help

Meet Our Veterinary Team

Our team is here to help. At Tillema Veterinary Clinic, we treat you and your pets like our family. Get to know our awesome team below!

Dr. Richard Tillema

Owner – Veterinarian
Dr. Tillema's Bio

Dr. Tillema grew up on a dairy in Texas where hard work wasn’t an option, it was a necessity 24/7. Dr. Tillema always believed if you take care of the animals, they will take care of you. As you might guess, lots of dogs and cats were dropped off on the dairy and Dr. Tillema was always providing care for those animals that were in need as his dad always joked, “You should open a veterinary clinic.” After graduating from High School, Dr. Tillema had many athletic scholarship opportunities but chose to serve his country in the U.S. Navy. After four years of working with an outstanding search and rescue team, Dr. Tillema got out of the military to work on his passion for veterinary medicine. Dr. Tillema graduated from veterinary school and after a few years working in upstate New York, he opened his own mobile practice in Southern California. He soon after, opened up his brick and mortar practice in beautiful Corona, Ca. In his spare time, he enjoys endurance events, skydiving, training, hiking, and playing and watching sports. Dr. Tillema also enjoys working with the FFA (Future Farmers of America) and the military. He has 5 hairy kids that he enjoys spending time with; Littles, Rebound, Lola, Cujo, and Stevie.


Practice Manager
Susan's Bio
Susan has been working in the animal care field since 1993. She has always had love and compassion for animals. She began working at a grooming shop in high school and then at a veterinary hospital where she worked many positions including Groomer, Vet assistant, Customer Service Representative, and Manager. She worked with the same veterinarian for 28 years. Susan really takes pride in her ability to work with pets and making them feel calm and at ease. She also loves working with clients and helping to educate them in the best way to care for their pets. Being a Practice Manager at Tillema Veterinary Clinic has been very rewarding as she really enjoys keeping morale up, having teamwork, and helping everyone to meet the goal of giving our clients and their pets the best care possible. In her spare time, Susan enjoys art, crafts, music, photography (you will see on our social media), movies, gardening, and gathering with friends. She has an awesome husband and 2 adorable Chihuahuas named Chico and Chica.  


Lead Customer Service Representative
Devynn's Bio
Devynn has been passionate about animals her whole life and feels blessed to have a career in the animal care field for over 15 years. While in high school, she was part of the FFA program where she raised two pigs named Lil Bits and Daisy. Also at that time, she worked at a veterinary hospital as a Customer Service Representative where she also was trained to be a Groomer. Now as a Customer Service Representative at Tillema Veterinary Clinic, Devynn is dedicated to making sure patients have a comfortable and enjoyable experience each visit. She has two cats named Sonic and Jack. In her spare time, she enjoys music and live shows, and spending time with her family and friends. She is looking forward to continuing her career and passions. One day she hopes to have a farm of her own where she can have many animals including pigs of her own.


Lead Vet Assistant
Erika's Bio
Erika has worked in the animal care field since she was in High School. She was lucky that her school offered an Animal Health course through R.O.P. This gave her the opportunity to work with many types of species from dogs and cats to birds and reptiles. As a Vet Assistant, she enjoys being able to help clients keep their pets healthy and happy. Currently at home, she has a duck named Chacita, 4 chickens named after Disney princesses; Marida, Mulan, Anastasia, and Moana. She also has 2 parakeets: Vladamir and Susan, a Finch; Mimi, a Cockatiel; Lola, 2 cats, Sebastian and Sassy, 4 dogs; Hero, Cornelia, Evie, Mina, a Sulcata Tortoise; Philip, a family of Guppies accompanied by 2 Zebra Tetra, 2 Red Eye Tetras and 1 Bristle Nose Pleco. In her spare time, she enjoys hiking, watching action and horror movies, and hanging out with her friends and family.
Photo coming soon


Registered Veterinary Technician
Johnna's Bio
Johnna has always had a passion for working with animals. She started her RVT career in 2003. Over the years she really has enjoyed working with people to help strengthen the human-animal bond. She even has a wild side to her. She spent time working at the Big Bear Zoo as a keeper and rehabilitating wildlife. Her greatest accomplishment was setting free a giant Osprey. When she is not working, she enjoys time out in nature, horseback riding, hiking, or with her dogs.


Vet Assistant
Nicole's Bio
Nicole has always loved animals and knew she wanted to be a veterinarian since elementary school. She is currently studying biology at Cal State Fullerton and is a board member of the pre-vet club. She looks forward to becoming a Veterinarian and is soaking up all that she is learning from Dr. Tillema. As a Vet Assistant at Tillema Veterinary Clinic, she has been able to get a lot of hands-on experience. She enjoys bonding with pets and educating clients on the proper way to care for their large and small animals. She has two dogs named Jaxx and Cully. In her spare time, she enjoys going to the mountains, snowboarding, traveling, and spending time with family.


Vet Assistant
Shelby's Bio
Bio coming soon.


Customer Service Representative

Melissa's Bio
Melissa started working with animals in 2014. She has worked as a dog walker, shelter attendant, receptionist, and a variety of positions in animal hospitals. Working with animals is very rewarding and fun for her. She really loves all aspects of animal care including educating clients on the best care for their pets. In her spare time, Melissa runs a small Etsy store named Kingsruffwear, where she sells handmade and stylish pet accessories and more. Her dog King is the reason she began her store as he is her beloved dog, a partner in crime and they love going on fun hikes together.


Vet Assistant

Michelle's Bio
Michelle grew up with animals her entire life. What sparked her to start her vet assistant career was when she began fostering kittens. She loved nursing animals back to health. She has four years of management experience in the service industry and knows the importance of a positive environment, not only for the pets but for pet owners also. In her spare time, she enjoys working with animals, arts, crafts, and spending time with her son. Along with her amazing son, she also has a cat named Kai, and 3 birds named Vader, Ivy, and Coco.