Meet Our Team

Our Doctors

We are experienced, passionate veterinarians, combining our expertise, experience, and varied interests to provide you with the best care available. Our broad range of skills will keep your pet's care close to home. We have established ourselves in the community as involved and respected animal enthusiasts, but our primary concern is for you and your family: We want you to be fully informed about your pet's care and stay completely involved in his or her medical decisions.

Dr. Mondrian Contreras

Dr. Mondrian Contreras graduated from the University of Florida College of Veterinary Medicine in 2010. He completed his internship at VCA Aurora/Berwyn Animal Hospital in 2011, and has special interest in surgery, oncology and dermatology. Dr. Contreras currently lives in Batavia with his wife, 3 sons, a new baby on the way and Emiko the family cat.


Dr. Elaine McCarthy

Dr. Elaine McCarthy graduated from the Purdue University College of Veterinary Medicine. She was born and raised in Indianapolis, IN where she grew up with her beloved family kitties and is the youngest of 5 sisters. She went to Purdue for 8 years completing both her undergraduate and veterinary degrees. She enjoys hiking, traveling, playing games with her family and friends, and dabbling in the arts. Dr. McCarthy currently lives in Carol Stream where she is excited to grow her veterinary career!  



Meet the amazing Dr. McCarthy. We are so excited that this extremely talented veterinarian has joined the Carol Stream Animal Hospital family!


Dr. Ann Gonnering

Dr. Ann Gonnering grew up in Schaumburg IL surrounded by an assortment of pets and wildlife. She earned both a Bachelor’s degree in Animal Science and a Doctorate of Veterinary Medicine from the University of Illinois. Since graduating, Dr. Gonnering has moved back to the Schaumburg area where she lives with her two beloved cats, Archie and Acer, and her handsome rabbit, Cedar. She enjoys exotic animal medicine as well as neurology and ophthalmology. Dr. Gonnering is very excited to meet you and your furry, scaled, or feathered pet!

Our Staff

We are committed to staying up-to-date with the constant changes that occur in veterinary medicine.  Our staff holds weekly journal club meetings with Dr. Contreras.


    My name is Fina and I have been a part of the Carol Stream Animal Hospital family since I was 17. A couple years after graduating from the University of Illinois with a B.S. in Integrative Biology, I came back to my hometown and am now the practice manger at this hospital. My boxer mix, Cassius Clay, and I love participating in all the educational  events and  community activities CSAH sponsors!


    I have worked at Carol Stream Animal Hospital since 2007. I enjoy working with and helping all the animals. At home, I enjoy spending time with my husband Tony, two sons, Jared and Jaxon, and my two dogs and two cats!


    I have been working for the Carol Stream Animal hospital since May of 2011. I love animals and am passionate about what I do. When I am at work, I keep busy with my husband, our daughter Maggie and three doggies at home. 


    Penny has been with the Carol Stream Animal Hospital since 1998. She is a whirlwind of work and a pleasure to have helping us with the little critters. She lives in town with her husband, Steve, and Daughter, June


    I have been working at Carol Stream Animal Hospital since October 2011. I enjoy working with the animals as well as our clients. I love sports of all kinds and share my home with my dog Charlee and my cat Colbee.


    I have been working at Carol Stream Animal Hospital since 2013.  I am very dedicated to helping animals and I love my job!  Outside of work, I enjoy spending time with my children Derek, Kiara, and my twins Lynnea & Dylan.  I also have 1 dog & 2 cats at home.  


    I've been working at Carol Stream Animal Hospital since January 2015 and love spending my days surrounded by animals. At the end of the day, I go home to my girlfriend and our two dogs, softshell turtle, and lots of fish.


    I started at CSAH in 2015 and I love working with animals! I have a cocker spaniel named Bailey. In my spare time I work at Randell Oaks Zoo.


    My name is Elizabeth and I have been working at CSAH for a year and a half. Although I have only been here for a short time, I have loved every second of working there with a great team and meeting our wonderful patients and clients. When I am not a work, I am pursuing my degree in Biology at Elmhurst College and I aspire to be a Veterinarian. I also enjoy spending time with my friends, family, two dogs, and my Guinea pig, Pumpkin.

  • Brianne Steward

    I've been working at Carol Stream Animal Hospital since October of 2019 and I have enjoyed working with the animals and clients here! When I am not here, I spend time with my dog Murphy!

  • Christienne Reddick

    I've been happy to be here as a part of the Carol stream animal hospital family since 2019. I feel truly fortunate to be able to help and learn as our knowledgeable and compassionate doctors and staff care for our clients (furry and non furry ). In my spare time I am a dog walker and provide in home pet care for many kinds of animals. I love to be with animals and people and Carol steam animal hospital has the best of both!

We are lucky to have Super Techs! Check out our video...

Contact Us

We look forward to hearing from you


Find us on the map

Office Hours

Our Regular Schedule


8:00 am-7:00 pm


8:00 am-7:00 pm


8:00 am-7:00 pm


8:00 am-7:00 pm


8:00 am-6:00 pm


8:00 am-1:00 pm