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Carol Stream Animal Hospital At Carol Stream Animal Hospital, we have nearly 25 years of experience treating the beloved pets of the Carol Stream, Wheaton, West Chicago, and Lombard areas. We treat a variety of pets, including dogs, cats, pocket pets, birds, and reptiles. It's important to us that we form a relationship with both you and your pet so that both of you feel at ease when you come to see us for an appointment. While we pride ourselves on our veterinary knowledge, we also pride ourselves on creating a low stress, comfortable environment for all of the families that we serve.
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Carol Stream Animal Hospital is proud to serve the Carol Stream IL area for everything pet related. Our veterinary clinic and animal hospital is run by Dr. Mondrian Contreras, who is a licensed, experienced Carol Stream veterinarian. Our team is committed to educating our clients in how to keep your pets healthy year round, with good nutrition and exercise.
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 graduated from the University of Florida College of Veterinary Medicine in 2010.
Regular exams, nutritional counseling, vaccination programs, parasite control, and expert geriatric care can help your pet live longer & happier. Digital X-ray, and a complete in-clinic laboratory, including CBC, and serum chemistries that can be done 'STAT, ' electrocardiography (EKG), and ultrasound capabilities aid in faster diagnosis and more directed treatment.
The veterinarians and veterinary team at Carol Stream Animal Hospital provide the highest quality of veterinary care possible by accessing a strong knowledge base, constantly learning current research, techniques and information, taking a caring approach with each family, and using state of the art technology in diagnosing, treating, and preventing disease.
Reviews (17)
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A. Ortiz
Apr 08, 2022
I recently relocated to Illinois and I found this animal hospital near my home, so I am happy that I found a vet for my cats. Service was fast, staff were friendly and professional. The vet was very informative and treated my cat with a lot of care.
Paul Wolak
Feb 05, 2022
Hi every one. I want to say one thing. Thank you sow much Carol Stream Animal Clinic.Thank you to all doctors but a special to Dr McCarthy and to all the stuff. For all they help and caring love, they gave us and to our baby name. Sharik . He was our best friend 19 year old cat male..We miss him sow much.every day. Dr McCarthy she was our doc sins we bring Sharik to the Anim. Hosp.and she still is.in my .Dr McCarthy thank you sow much. And we will see you soon. With a new soprice. Thank you Carol Steam Animal Hospital. Danuta W.
Eva Amador
Jan 22, 2022
I am new to the area. I've asked friends and family if they were happy with their vet. No one could give me a definite answer. That was troublesome, since my babies (Shi-tzu's) are our life. Most answers were I wanted someone that was close to home. So that's what I did, I researched vet close to home the reviews said enough. My experience with Dr. McCarthy has been ABSOLUTELY OUTSTANDING! The Entire staff from the 1st phone call through the meeting of the Doctor. I couldn't be more pleased. Our babies are in LOVING hands!
Michele Pasik
Jan 11, 2022
Really disappointed with the service here. Refused to let us come in with our puppy and he, according to them, was aggressive and acting out so he needed to be sedated during visits. Spent all this money on sedatives which didn't even work for him. Was thoroughly confused by his behavior there because he is so well rounded and adjusted at home and around new people (albeit a little shy at first).

Very angry at the comments made about how they assumed he was going to be aggressive in the future and he's trending to become an aggressive dog in general. incredibly judgmental considering they only knew him from those visits. Took the pup to a new vet and literally no issues, not one. The new vet even said he had no behavioral issues she was concerned about! I feel terrible bringing my new puppy here for his initial experiences with the vet. IMO go elsewhere for care of a new puppy/any dog going through a fear period.
Jeff Storck
Dec 31, 2021
Curb side feature for health safety. Inform you all issues you pet is experiencing.
Maciej Mazurek
Nov 21, 2021
Good people. Clean. Very nice doctors But to much restricted. They going for store s restaurants but Here have to explain everything by phone Crazy!
Nix H.
Sep 04, 2021
They are the reason my dog is still alive after an infection in her leg from a previous surgery. Also very kind and compassionate.
Amanda Semrick
Jul 28, 2021
Over a month ago, I woke up to my pet chinchilla making a horrible noise. Anyone who has had an exotic pet knows that a good vet is difficult to find at the best of times. But she needed help and Carol Stream Animal Hopsital was literally only a few minutes away. They not only got me in the same day, they treated Norma Jeane as if she were their own pet.

She ended up needing surgery a few weeks later after the initial problem was treated and Dr. Gonnering couldn't have been more helpful. She not only understood that Norma Jeane was family but that I was also concerned. My little furry one has made a complete recovery and I know it's in no small part to the wonderful staff there. From the receptionists to the techs, they all deserve a huge thank you. If I or anyone I know in the area needs a vet, I am definitely recommending Carol Stream Animal Hospital.
Meagan Dean
Jul 02, 2021
We adopted an elderly cat from the shelter in December 2020 and have loved our experience at Carol Stream Animal Hospital! Our cat had some eye issues requiring medication which was so easy to get through them. Sadly, she was later diagnosed with diabetes. We have worked VERY close with Dr. Contreras, with bi-weekly phone conversations monitoring her levels and insulin. Sadly, we made the difficult decision to put her to rest. Dr. Contreras has always been honest and supportive of what ever decision with made, providing his expertise along the way.

He knew how hard it was for us to imagine bringing her in for euthanasia, and even recommended a home euthanasia company to make it easier for us. I cannot say enough about Dr. Contreras and the entire staff here. Their knowledge and true emotional support is so genuine. Our cat hated the drive to the vet, but loved the people and was so relaxed around them each time.

I think that speaks volumes about their care and personalities. We will only be going here with our future pets because the trust is there and they have proved that they have exceptional care and huge hearts!
Josie Barber
May 18, 2021
On Saturday morning May 15, 2021 our beloved dog Rex suddenly became gravely ill. Carol Stream animal hospital was the only veterinary clinic that made itself available to us because they offer urgent care appointments. They were wonderful with our dog and with us as we had to make a very difficult decision. Thank you, Dr. McCarthy & Olivia!
Kara Babinski
Dec 29, 2020
This place is the best!! Dr. Contreras and the entire team are amazing. They are professional and caring with every thing that they do. We had to put down our sweet girl there and they were so comforting. Made us feel as though we were family! They are extremely upfront about their fees and there is no gouging going on just fair and reasonable pricing. Would not dream about taking any of our fur babies anywhere else!!
Anna G.
Oct 25, 2020
Carol Stream Animal Hospital has good veterinarians and vet staff. They are all kind and very caring people. They are very thorough when assessing my 2 dogs. My dogs really enjoyed the veterinarians, and they all have been very helpful with getting my dogs feeling better. I felt confident that my older dog was in good hands with this staff and I knew when it was time to say me goodbyes to her. I felt very supportive with the decision to end my dog's suffering and was at peace with it.
Jr Bon
May 19, 2020
The staff and service at Carol Stream Animal Hospital is the BEST! They go above and beyond to see your pet when they are not feeling well and fit you in the schedule. Diane is just fabulous, the techs are warm and friendly, and the vets are awesome.
Cat Lynn
Jan 02, 2020
We recently moved to the area and hadn't yet found a new vet when I found a lump on my cat's neck. I was nervous about picking a place without a personal recommendation from anyone I know, but Carol Stream Animal Hospital was the closest vet so I picked them. It was busy around Christmas but they got us in within a couple of days, and were able to quickly determine the lump seemed to be a mast cell tumor. Dr. Contreras has been incredibly empathetic and kind throughout the whole process, and when I've called with questions while he's out of the office, the other vet I spoke with was incredible as well.

The vets are very knowledgeable and they understand that even my "silly" questions come from a place of care, and are happy to answer anything. My cat's surgery went really smoothly this last Monday and they sent us home with meds that seem to really help her. This has been a very pricy process but it's worth it for my girl, and I'm happy that her care team has really shown up for our family during this hard time.
Jim Slanker
Jun 11, 2019
Caring staff who take the time to talk with you and review options.
Jennifer L.
Jan 27, 2018
We have brought our pets their for routine check ups but yesterday we brought our dog dobey there for the last time. The staff was so considerate to our needs and allowed our pet to pass on in comfort and dignity. The process went so smoothly and seeing his suffering end helped me so much with the grieving process. Thank you to all the staff that took care of our beloved pet and us!
Cindy Polk Kuntz
Jan 26, 2018
Dr.Contreras is so kind and caring with our dogs. Our 11 year old Cavalier was diagnosed 3 years ago with congestive heart failure. Due to Dr.C's expertise and care Rex is alive and well with medication management. We could not be more satisfied with the care we have received from not only Dr.C but his staff as well. Thank you Dr.Contreras for always taking the time to explain and discuss the care of our Rex.