Meet Our Team

Get to know your team at Mission Viejo Veterinary Hospital, partners for life in providing for your pet’s health and well-being. We’re committed to providing exceptional veterinary care to your cats and dogs, and outstanding service to you.

Our Veterinarians

Dr. Bruce Louderback, DVM


Dr. Louderback earned his degree from the University of Illinois.  Upon graduation, he worked in mixed practices in Vermont and Illinois before establishing Mission Viejo Veterinary Hospital in 1976.  Dr. Louderback is well-known in the veterinary community and has served his profession in many ways over the years.  He was appointed by Governor Bill Owens to sit on the Colorado State Board of Veterinary Medicine and served two terms from 1999 to 2007.  His contributions to the state board led to involvement with the National Veterinary Board where he has served as Director, Secretary, Treasurer, and President.  in 2009, Dr. Louderback was honored to be elected Colorado Veterinarian of the Year.  He and his wife, Jody, have three grown children and two grandchildren.

Amanda Berry, DVM


Robert Moore, DVM


Dr. Karalee Gendreau, DVM


Dr. Gendreau began working part-time for Mission Viejo Veterinary Hospital in 2009 after graduating from Ross University School of Veterinary Medicine in 2005.  She and her husband, Tom, have two Bernese Mountain Dogs named Jameson and Brinley.  She has a passion for animal welfare causes and a special interest in working dogs and animal behavior.  Dr. Gendreau nurtures a strong doctor-client relationship; she believes that superior client education fosters a healthy human-animal bond and allows owners to be able to relate to their pets more easily. Dr. Gendreau also volunteers her time as a member of the Colorado Veterinary Medical Reserves, so animal-related endeavors take up a lot of her time.  When she is not on the job, she enjoys exploring the mountains of Colorado with her husband and dogs.

Amanda Berry, DVM


Associate Veterinarian

Dr. Berry became part of the Mission Viejo Team in November 2020.  She graduated from   St. Matthew’s University  and enjoys doing surgery and dental procedures to help our patients live longer and healthier lives. Dr. Berry often brings her adorable dogs Lucy and Chip to work with her.  Lucy requires daily pets from all staff members.

Karen Harrison, DVM


Associate Veterinarian

Bio coming soon




Deann graduated from the University of Northern Colorado in 1982. She started at Mission Viejo Veterinary Hospital in 1984 as a veterinary receptionist, and since 1995 she has been our office manager.  A position she really relishes, as her job is never the same day-to-day.  She especially enjoys researching new medications for our patients and talking with clients about their pets and their unique dietary needs.  You may see her filling in for the front staff from time to time; it gives her a nice break from the paperwork involved in managing our hospital.  During her time off, Deann enjoys our beautiful Colorado weather with her Afghan Hounds at various performance events, like lure coursing. She is also a sports enthusiast- she loves baseball (Go Rockies!) and football (Go Broncos!)

Support Staff

Christina, CVT


Christina started working at Mission Viejo Veterinary Hospital in 2014 while attending Bel-Rea Institute of Animal Technology. In 2016 Christina graduated with an Associate’s Degree in Applied Science and is a Certified Veterinary Technician. She is very compassionate about the well-being of animals and the happiness of their owners.  Christina is tasked with supervising our kennel staff and looks forward to her interaction with our boarding pets. She enjoys the opportunity to learn new things in the veterinary field and staying up to date on current education. Christina was born and raised in Aurora, CO, and enjoys spending time with her family and friends, adventures out of doors, and good movies!  She always knew growing up that she wanted to work with and care for animals one day. She fulfilled her passion for animal care that she developed through her love for her dogs Chewbacca, Magellan, and various pets she and her family had over the years. Currently, she has her dog Mitzi that helps her every day along with her cat Henry, guinea pig Trey, fish Blue and new addition to the family Luna. 

Kerriann Exner


Kerriann (Kerri) has been with Mission Viejo Veterinary Hospital since 2006.  Kerri is a CVA and is working toward a Canine Behaviorist Certification.  She has spent her life working with all dog breeds and has a special bond with large breeds especially Bullies and Mastiffs.  Kerri has raised and trained many Cane Corso’s, American Staffordshire Terriers, and American Bull Terriers.  She is our go-to person for assisting our bigger friends. Kerri shares her home with  Athena a Staffordshire Terrier and Kodiak a Cane Corso.

Michelle Salaz


Michelle is a Colorado native and started her journey as a veterinary assistant in 2019 and found her home with Mission Viejo Veterinary Hospital in 2020.  Michelle’s bubbly attitude makes both pet parents and their fur babies comfortable while in her care. Michelle has gladly taken on the responsibility of caring for her grandparent Basset Hounds, Sonny, and Cher and outside of work, Michelle loves to explore the outdoors with her Labradoodle, Bumpers.  She also enjoys reading a good book and watching movies in her free time. 

Trevor Nielson


Rachael Solarz


Rachael joined our staff in 2022 and brought with her a plethora of skills from other veterinary hospitals. She immediately became a vital member of our staff.  As a new mother she enjoys spending time with her adorable daughter, Emelia.

Haleigh Sensky


Haleigh joined our team in 2022 after moving here from Seattle, Washington and found her love for animals along the way. Haleigh has earned her CVA and is working to become a Certified Veterinary Technician.  Haleigh has a cat named Luna and enjoys hiking Red Rocks with her Australian Shepard, Trigger.

Demi Joslin


Demi became a member of our team in July of 2022.  As a receptionist she enjoys helping clients to make appointments for our clients’ pets to keep them healthy and happy.  Demi loves cats and has Ash and Kitty at her home.

Candy Kossman


Candy has worked in the Aurora Public School system since 2007 and retired in 2021.  She had previously worked as a Veterinary Assistant in 1998 and returned to the veterinary field in 2021 and then joined Mission Viejo Veterinary Hospital in 2023.  Candy enjoys fishing with her family and Movie Nights with her granddaughter.

Andrew Smith


Drew is a huge lover of  and loves meeting new people.  He has three Shih Tzu of his own.  Drew is a graduate of  CSU-Pueblo with a BS in Management.  He loves to hike in the summer and snowboard in the winter when not working.