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Rebecca Arbesman, DVM

Dr. Rebecca Arbesman is a 2002 Graduate from the University Of Missouri College Of Veterinary Medicine. She has been with Carter Pet Hospital since 2007. She previously worked at North Main Animal Hospital in O’Fallon. She loves internal medicine, but her passion is surgery.

She is married to Gordon Arbesman and has 2 beautiful daughters, Ashley and Jessica. The Arbesman family has 3 Cavalier King Charles Spaniels, 5 cats (including 3 Birmans), an aquarium full of fish, and Angel the guinea pig! Dr. A stays busy with church and school activities with her daughters. On quiet days she enjoys cuddling with her pets and watching movies with the family.

Karen Hart, DVM

Dr. Karen Hart is a 1996 graduate of the University Of Missouri College Of Veterinary Medicine. She has been working at Carter Pet Hospital since 2008. Her background in emergency medicine led to an appreciation for a good challenge.

She lives in Sunset Hills, Missouri, with her husband of 11 years, Dave, who is also a veterinarian. They have a son, Jackson, and a daughter, Parker. Their four legged children include a terrier mix, Tippy Sue, a staffordshire terrier, Eddie, and 2 cats, Coffee and Squirrel. When Dr. Hart is not working she enjoys cooking, yoga, and spending time with her family.

Christine Nagel, DVM, MPH

Dr. Christine Nagel is a 2011 graduate of the University of Missouri College of Veterinary Medicine. She has been working at Carter Pet Hospital since 2014. She loves cases involving ophthalmology.

She lives in Chesterfield, Missouri with her furry family - a dog, Isis, and two cats, Anouk and Napoleon. Her hobbies include music production, participating in triathlons (she is currently training for the Ironman), and spending time with friends and family.  

Hannah Karll, DVM

Dr. Hannah Karll is a 2015 graduate of Kansas State University College of Veterinary Medicine. She has been in the veterinary field since 2005. Her passions are behavioral health and geriatric care. 

She grew up in Lincoln County and now lives in O'Fallon, Missouri with two dogs, Lily Belle and Roxy, and three senior cats, Gracie, Smoky and Annie. She also has a bearded dragon and three kissing fish. She is very community-minded and enjoys volunteering for feral cat spay-and-neuter clinics and fundraising for the Special Olympics. 

  Amanda Logan Cassells, DVM

Dr. Amanda Logan has always loved animals. She grew up on a farm and had her first visit to a Veterinary college in sixth grade. She knew then that she would someday be a Veterinarian. Dr. Logan brings 17 years of experience to Carter Pet Hospital. She graduated with honors in 2000 at the University of Missouri, College of Veterinary Medicine.

Dr. Logan lives with her husband, Steve, and her two children, Sean and Lily. Her furry family consist of a 14 year old Jack Russell named Kramer, a two year old Mini Aussie named Scout, and a nine month old Lab named Finn. Although Dr. Logan loves all animals she has a special place in her heart for Labradors.

Her favorite things about pets? Puppy breath, snuggly pets, and naughty terriers!


Dave Hart, DVM

Dr. Dave Hart has 20 years of experience in the veterinary field. After getting a B.S. in Biology at Millikin University in 1992, he continued on to the University of Missouri, College of Veterinary Medicine and graduated in 1997.

As a child, Dr. Dave’s family always had a lot of pets in the house.  Looking back now he admits, as an only child, he viewed the family pets as his siblings. Now, as an adult, Dr. Dave still loves spending time with animals.

Dr. Dave truly enjoys his job, stating, “I think a lot of children grow up wanting to be veterinarians, but I was lucky enough to be able to do it as a real job.” One of his favorite parts of the job is seeing the children of his clients grow up and come in with a family of their own and he feels that it is “a true blessing to be part of a family’s trust and tradition.”

Dr. Dave Hart is married to Dr. Karen Hart who has been practicing Veterinary medicine with Carter Pet Hospital since 2008. It’s exciting to have this dynamic duo working here together!

Office Hours

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8:00am 8:00am 8:00am 8:00am 8:00am 9:00am Closed
6:00pm 6:00pm 6:00pm 7:00pm 5:00pm 2:00pm Closed