We will no longer be using VitusVet for appointment reminders or record accessibility. Stay tuned for more information about our new app!


Preiser Animal Hospital would like to take this opportunity to welcome you, your family, and your special family member to our website. As you continue to browse and explore our website, it is our hope that you will learn more about our dedication to your family and the quality veterinary medicine and service we provide.

Our goal here at Preiser Animal Hospital has always been to assemble a veterinary health care team committed to providing exceptional client service and veterinary health care. PreiserAnimal Hospital displays an unrivaled commitment to our clients through continuing education, technological advances in veterinary medicine and service, and most importantly, administering compassionate care to all pets entrusted to us.

Fear Free Certified Professionals

Some of our staff are Fear Free Certified! This means that our mission is to prevent and alleviate fear, anxiety, and stress in pets by inspiring and educating the people who care for them.

Rest assured that when you bring your pets to Preiser Animal Hospital, we will ensure a Fear Free experience.


Preiser Animal Hospital is a full-service animal hospital whose mission is to provide the highest standard of veterinary care for pets. We provide friendly, informative, and supportive services for you and your pet, while maintaining a superior working environment for our employees.


Dr. Kristine Preiser


Dr. Preiser's Bio
The daughter of veterinarian and hospital founder Dr. Herbert Preiser, Dr. Kristine Preiser has been the medical director of Preiser Animal Hospital since 2007. Kristine played Division I soccer at Iowa State and at the University of Montana where she also earned a BS in Biology with an emphasis in Zoology and a minor in Philosophy. Kristine attended Ross University School of Veterinary Medicine and then completed her clinical year at Washington State University where she graduated in 2007. Before becoming a veterinarian, Kristine held a number of different jobs including wilderness firefighter in the Tally Lake Ranger District in Montana; soccer coach in IL, MT, & AK, including the Olympic Development Program and the Head Women’s Coach of the St. Kitt’s and Nevis National Team for over 3 years; worked as a team member on the wolf reintroduction program through the U.S. Fish & Wildlife Department in Grand Teton National Park for a winter season; spent 1 year teaching the ways of the wilderness with troubled youths in Montana to encourage a positive lifestyle (AYA), and she also was a substitute teacher and Youth Soccer coach in Alaska for 2 years.

In her free time, Kristine enjoys reading and painting, playing any sports and anything outdoors, especially soccer and golf, and backpacking, skiing, hiking, kayaking, and camping with her dogs Roux, Bug, and Zwieback, Phoebe, and also 3 cats Targa, Talisker (Tallie) and Keaton and squeaking with her guinea pig Nome. When at home, her hobbies include organic gardening, raising chickens, beekeeping, reading, and stamp collecting and scrapbooking for her daughter. In 2019 she and Brett had their first child Charlotte Elisabeth and they both can’t wait to teach her the wonders of nature and animals!! You may also meet her rescue cat Kenai when you come to the animal hospital. Giving back to the community is important to Dr. Preiser; she has recently started a therapy farm in Northern Illinois for both people and animals, pursuing her wildlife license to help any and all animals heal both physically and mentally. She volunteered as medical director of an on-campus animal shelter founded by her family from 2007 to 2018, taking pride in treating every shelter animal like her own and not just a number. Her veterinary interests include surgery, geriatric medicine, wildlife, orthopedics, exercise rehabilitation, holistic medicine, and reproduction. She is now the medical director for Border Tails Rescue and Adoptable Friends Inc, 2 shelters. She strongly supports their mission and philosophy.  She is now the medical director for Border Tails Rescue and Adoptable Friends Inc, two shelters she strongly supports their mission and philosophy. She is also a huge golf fan and loves the German premier soccer team Bayern Munich. She moved back to the Midwest to be closer to her father, but her heart and passion lie in the Northwestern mountains. Someday she’ll be reunited with the wilderness, she says! 🙂 While she loves what she does in her practice, her dream job would be Dr. Oakley, Yukon Vet! If you watch that show, you’ll know why!

Dr.Roy Hubert

Dr. Roy Hubert


Dr. Hubert's Bio
Dr. Roy Hubert graduated from University of Illinois is 1969 and started his career at a practice in Evergreen Park. In 1980 he became owner of the clinic. For 50 years he owned his own practice and sold it in 2018. He loves the veterinary profession so he then came to work with our team at Preiser Animal Hospital. Dr. Hubert is amazed how veterinary medicine has advanced so much since he started his career with all of the new drugs, anesthetics, and the diagnostic modalities such as digital xrays and ultrasound. He has seen specialty clinics rise enormously. Dr. Hubert enjoys sharing his experiences with us, the pets and clients. He brings in a lifetime of experience and is a very kind and gentle man. He enjoys traveling with his wife outside of work. Ask him about his Yorkies and his new kitten he just got!
Dr. Mary Lewis

Dr. Mary Lewis


Dr. Lewis' Bio
Dr. Mary Lewis graduated from the University of Wisconsin-Madison in 1988 as the second graduating class. She also did her undergrad at U of W-Madison. She has been part of our team since 2020 and immediately fit in with our team. She is one of the kindest, most compassionate people you’ll ever met, not only to our patients, but to our clients and team! She is so thankful to be a part of pets and their peoples’ lives, with a particular interest in working for the best of preventative care from beginning to end of our pets lives. She grew up in Northern Wisconsin playing outside all day in the woods and on a lake. Her family had horses, dogs and cats. She cherishes that she and her family still get to head north all year round to Manitowish Waters to her childhood home. For Dr. Lewis, her faith and family are her core focuses.

She had three dogs for most of her adult life , one always being a lab. Now she has a single dog home of her Papillon, Wilbur. Her pet naming criteria sourced from 50-60’s sitcom characters ( aka Wilbur Post from Mr Ed) . Ask her about her pets’ names! Outside of veterinary medicine, she love s her hobbies with her husband ( they just celebrated their 34 th anniversary !!) , her 3 lovely kids with terrific spouses and dogs, and her pride and joy grandchildren . She’s pretty addicted to her almost 3 year old grandson and 5 month old granddaughter . She and her husband love walking, bicycling, kayaking, disc golf, her new found hobby of pickleball, fishing,cross country ski ng, snowshoe ing, cooking, gardening, reading (especially historical fiction). Her newest adventures with her husband is to visit the National Parks! When you meet Dr. Lewis you’ll feel like you’ve found a friend.

Dr. Mary Lewis

Dr. Silvana Beloiu


Dr. Beloiu' Bio

Dr. Beloiu was born in the capital city of Romania, Bucharest. She decided to become a veterinarian from an early age because she always felt compassion
every time she encountered a sick pet. In her childhood, she spent three weeks every summer in the Carpathian mountains of Romania camping with her whole family, hiking, and picking herbal medicine, mushrooms, and wild berries with her grandfather. Her grandfather taught her a lot about the forest and opened her heart to nature.

She graduated from the University of Agricultural Sciences and Veterinary Medicine in Bucharest, Romania in 1997. During her study years, she volunteered almost every Saturday at the university clinic, helping with treatments, surgeries, and house calls. This experience in the formative years
constituted a great foundation for future clinical work as a veterinarian. After graduation, she worked in a small animal practice for 3 years in Bucharest. In
2000 she moved to the United States and started working as a veterinary assistant at Riser Animal Hospital and then at March Animal Hospital while
being enrolled in the Educational Commission for Foreign Veterinary Graduates (ECFVG) of the American Veterinary Medical Association (AVMA). She
completed the Evaluated Clinical Year (ECY) at Iowa State University, and finished the program in 2007, becoming a licensed veterinarian. Upon
completion of the program, she returned to March Animal Hospital where she practiced for 14 years all aspects of small animal veterinary medicine. Always
interested in gaining new skills she attended various training programs for laser surgery and also in Traditional Chinese Veterinary Medicine (TCVM) becoming certified in acupuncture, herbal, and food therapy. Blending Western and Eastern medicine has been her passion, trying to get the best outcome for the patient. Other professional interests include all types of soft tissue surgery, geriatric medicine, and dentistry. She also received training in laparoscopic surgery at the Animal Medical Center of Skokie.

In her free time, she loves spending time with her family, husband Alex, daughter Melissa, and cat Emma Fuzzball, reading, cooking, bicycle riding, rollerblading, and listening to music.


Technician Team Leader
Jaimie's Bio
Jaimie joined Preiser Animal Hospital family back in February of 2005. She graduated in 2000 from Oregon State University with a degree in Wildlife Biology and that began the start of her career with animals. In 2001, she signed on with the U.S, Fish & Wildlife Service as a team member on the Greater Yellowstone Area Wolf Reintroduction project. After working there for 2 years, Jaimie took a position with the U.S. Forest Service doing flying squirrel surveys in Alaska. Eight years after leaving IL, Jaimie made the decision to move back home to be closer to her family. Outside of work she enjoys playing soccer and going to Blackhawks games, but she’s always up for anything outdoors. Living out west for 8 years has given her a greater appreciation of the beautiful things nature has to offer. Jaimie has 2 cats, Wrigley and Odie that are also Heartland Animal Shelter alumni and 2 dogs, McKinley and Chico. Did you know Jaimie is a carboholic??


Certified Veterinary Technician
Elsie's Bio
Since joining our team at Preiser Animal Hospital in 2015 her mind and her heart have been opened to so many opportunities to make a difference in the lives of the families and their companions.

She attended Fox College Vet Tech Institute and is proud to be a Certified Vet Technician.

She enjoys living a very exciting life, always trying new food and going on adventures; but being a mom is her happiest journey yet, and her Son gives her an excuse to act silly! Lifting and running keeps her fit, but dancing is her favorite way to maintain good cardiovascular fitness!

Elsie’s Zoo features Polly Miller, 14 yr old Quaker Parrot, Troy, 2 yr old Jack Russel Terrier, Alec,2 yr old, Bearded Dragon and Oscar, 2 yr old Leopard Gecko.

Elsie is blessed knowing she has a whole team of amazing people with the same passion and goals in their hearts as she does for the veterinary field. We are blessed to have Elsie on our team, come in and meet her and you will agree with us on how compassionate, caring, and will do anything to make your pet and you comfortable here at the hospital!!


Certified Veterinary Technician
Amy's Bio
Amy joined the team in October of 2016, she graduated from vet tech institute in 2011 and is a certified veterinary technician. She has been working with animals since she was in high school. Amy has worked with a variety of species including birds, rabbits, reptiles, and wildlife. Amy lives with her husband, 3 small children, a lab named Claire, and a bunny named Charley Anderson. Amy enjoys scrapbooking in her spare time.


Veterinary Assistant
Russell's Bio
Russell joined Preiser Animal Hospital in May of 2016. Russell is from Mundelein, Illinois and is taking classes part-time Biology at Northeastern University. Russell grew up with a labrador, Bluto, named after Senator John Blutarski and would really like to one day own a french bulldog. In his spare time, Russell loves playing and watching sports, especially Bulls and White Sox games. He also loves the outdoors whether it be hiking, biking, or camping. Russell has loved working in the veterinary field ever since starting off as an assistant in 2012 at an ER. Russell is glad to be a part of the Preiser team!


Veterinary Assistant
Katie's Bio
Born into a family with Siberian Huskies and Thoroughbreds, her love of animals began early. It was always her dream to work with animals as well as humans, and in 2011, she graduated from the University of Illinois at Urbana-Champaign with a BS in pre-veterinary medicine. She spent the next 3 years studying chiropractic medicine at National University of Health Sciences. It was at this time when she lost the first of her 4 miniature dachshunds, Kali, and Kolby, Jessica, and Rascal, were soon to follow. It was in this moment that she dedicated her life to saving animals that could not save themselves. Outside of work, she spends all of her time at the stable, riding as many horses as she can. She has been riding and competitively showing jumping horses for 20 years. She has a 22-year-old Thoroughbred, Magic, and a Labrador Retriever puppy, Lola. She loves traveling, so much so that she was a student ambassador for the state of Illinois in 2006. She also loves attending Blackhawks games and Bears games, as well as attending concerts, and enjoying anything that allows her to spend time in the water. The first thing you’ll notice about Katie is her kindness and willingness to listen, come in and meet her!


Veterinary Assistant
Javier's Bio

Javier’s full bio is coming soon, but did you know he was a veterinarian in Bolivia?? The first thing you’ll learn and notice about Javier is he is so genuine and kind. He came to the US with his wife 3 years ago and is working on his prerequisites to get certified in the US as a veterinarian. Javier loves all animals big and small! More information on Javier coming soon! 🙂 


Veterinary Assistant

Andrew's Bio

Bio coming soon!


Veterinary Assistant Intern

Bridget's Bio

Bridget is here this summer helping us out with all of our needs. She’s very interested in learning about the wonderful veterinary field and currently attending the University of Oregon. Her family lives in Arlington Heights but she’s fallen in love with Oregon. Please welcome her to our team this summer!


Kennel Attendant Extraordinaire
Brad's Bio

If any of you use our boarding services, you know Brad! Brad has been loyal to Preiser Animal Hospital for over 20 years!! He is a quiet and gentle person that is very in tune with our boarders – dogs and cats alike! He enjoys going to the gym and pizza. He rescued his cat Whitey almost 3 years ago now.


Client Service Representative Team Leader

Mandi's Bio

With a deep love of animals and an insatiable wanderlust, Mandi has carried her passion for critters of all shapes and sizes from coast to coast. As a teenager, her first job was at Chicago’s very own Brookfield Zoo, working as a junior docent and helping in the Children’s Zoo with animal demonstrations and teaching young children about the fantastic creatures right in their own backyards. After meeting the love of her life in the early 2000s, Mandi and her husband relocated to the small, Viking town of Poulsbo, Washington in the Pacific Northwest where she began work at a critical care and emergency veterinary hospital and fell in love with veterinary medicine. Three clinics and two baby seal rescues later, the lovebirds moved back to the Land of Lincoln, where she joined a large, private animal hospital in the north suburbs of Chicago for five years before stepping away from the field in 2020. Mandi has returned to veterinary medicine and joined Preiser Animal Hospital this summer as a lead client care coordinator and boarding director.

When she isn’t writing children’s books, dancing on quad skates, learning the fine art of tattooing, or hanging out with her two fabulous cats Luna and Pippin, you can find Mandi on the road, taking the scenic route and chasing sunsets. She loves music, photography, reading, scary movies, peach tea, drag queens, serial killer documentaries, and everything Halloween! Come in and you’ll meet Mandi right away ready to greet you with a smile!


Client Service Representative

Karen's Bio
Karen is new to the Preiser Animal Family this January but has worked in the veterinary field as a front desk technician for the last 12 years at another animal hospital. Karen is mom to 2 dogs and 3 kitties that are all rescues. She enjoys the outdoors and likes to hike and play golf (although she does admit she’s not quite ready for the LPGA). She loves to just pack up the pups and go on a spur of the moment road trip (she wonders, “where to I find the big ball of twine?”) She also loves her Chicago teams: she is a Bear, Sox and most of all Chicago Blackhawks fan! #2 is her fav!

Karen says the best part about her job is going to be getting to know all of you and your 4 legged family members and that no two days are ever the same. Please come in and meet Karen–she ALWAYS has a genuine smile on her face!


Client Service Representative

Angie's Bio

Bio coming soon!

Kenai and Miss Priscilla!

Welcome Committee
Welcome Committee Bio
We have quite a welcome committee here at Preiser Animal Hospital. Although rarely will you ever see all 3 of them in one room at one time there are 3 black cats that roam the halls of Preiser Animal Hospital. Chugach (aka Chewie) and his sister, Kenai came to Preiser Animal Hospital as strays once upon a time. Dr. Preiser took one look at their big orange eyes and fell in love instantly. Unfortunately, her German Shepherd had different aspirations for them.  And for that reason, they came to call the hospital home.  And it truly is their home. About a year later, along came a kitten named Priscilla, also a stray, and Chewie was instantly smitten. Shortly after her arrival, Priscilla injured her arm and required a little more TLC. Chewie nursed her back to health and they have been living happily ever after since. Chewie can usually be found either on the sign-in clipboard or laying in the outgoing mailbox. Kenai is the brains of the operation.  She is also our interior decorator at times, using her nails to help re-design the upholstery. As for Miss Priss. She is less enthusiastic about dogs so she tends to take cover until things quiet down.  But when no one is around you will find her stretched out on the waiting room floor with her belly waiting to be petted or begging for water at the faucet (she has us trained quite well).


Use the form below to send us a message! A member of our team will get back to you as quickly as possible. If you need immediate assistance, please give us a call at 847-827-5200.


Request an appointment online!


Request an appointment online!



2975 N. Milwaukee Ave
Northbrook, IL 60062
Click here for directions.


Mon - Fri: 8:00 am - 5:30 pm
Sat - Sun: Closed