Our Doctors

Dr. David C. Carroll

Meet the doctor

Dr. Sarah Mihalek

meet the doctor

Dr. Sandra Lester

meet the doctor

Registered technicians

Office Manager/RVT

 Cassandra has had a lifelong passion for animals. When she graduated high school she decided to pursue her dreams of working with animals and began attending PennFoster to earn her degree in veterinary technology. She has been working as a Veterinary Technician since 2010 and plans to received her RVT License in 2016. In her personal life, she lives on a ranch with her fiance, two dogs, two cats, a couple of chickens, and a variety of horses. In her spare time, she trains, sells, and competes her horses in dressage and jumping.  


Animals have always been a huge part of Julie's life and a passion she has had ever since she was a little girl. She always knew she wanted a career working in the veterinary field. She started her first job as a kennel assistant in 2007 and after further education and schooling became registered as a Veterinary Technician (RVT) in 2012.
She has experience working in a general practice setting as well as emergency and specialty medicine. At home she lives with her husband, daughter and 4 fur kids. Dyna (german shepherd), Poppy (pitty mix), Stuart Little (cat), and Tweak (cat). In her spare time she enjoys drawing art work, relaxing with her family, and spending time outdoors 


Hän(and Indy)

 Hannah (Han) is our Receptionist, another local who grew up in Napa and graduated from Vintage High School. She then attended Napa Valley College and graduated with a degree in Natural Science and Mathematics. In her spare time she loves video games, the great outdoors, and wildlife photography. She has a certificate in handling exotic reptiles and hopes to continue working with animals of all shapes/sizes.  

Nicole(and Josephine)

 Nicole was born and raised in the Napa Valley, as a graduate from Vintage high school, Nicole has always had a passion for all types of animals. She has been working in the vet care industry for several years and has created lifelong friendships with clients and patients in that time. Nicole enjoys being outside hiking, walking, or just enjoying the sunshine with her 5 year old fur baby, Josephine. When Nicole gets a free day she plays softball, or will also sit down to read a good book. She is excited to be a part of Napa River Pet Hospital.  


 Samantha was born and raised in Northern California and ever since she was a little girl, has always held a special spot in her heart for animals. She and her boyfriend are pawrents to three incredibly spoiled rescue dogs, Petunia, Zoey and Ellie. In her spare time she likes to go on hikes, and enjoys days at the river, lake and beach. When she isn’t adventuring with the dogs, she is finding new and interesting places to eat.  

Veterinary Assistants


 Jessica grew up in the Napa Valley and aspired to be a vet tech since she was a little girl. She has been living her dream for the last several years as a Veterinary Assistant. She has a passion for assisting surgery and a caring touch with patients. She attends CE seminars regularly to further her knowledge and looks forward to continuing her career. She has 2 cats (Jesus and Optimus Prime) and Odi the pitbull. She also has three of her own human kids. 

Robert(and Jack)

 Robert lives locally and has worked in the veterinary field for several years. A Vintage high school graduate and a walking "fun fact" encyclopedia. Robert enjoys all animals, especially bugs, and has had an interest in nature and science as a whole for a majority of his life. In his free time he enjoys Extreme Metal music, video games, and eating at new and interesting places.   


 Courtney is a mother of 4, two little humans, her dog Max, and her kitten Yogurt. She's been in the animal business for the past 14 years. She was an animal trainer at Six Flags Discovery Kingdom for 9 years and spent some time as a keeper at Safari West. She has worked with many species from raptors to rhinos. For the last few years she has found her new love for veterinary medicine and is very excited to be joining the team her at Napa River and Napa West Pet Hospital.  

Kennel Assistants

Alycia(and Salem)

 Alycia is another one of our Napa natives here at the hospital and is currently going to the Napa Valley College. During her free time she enjoys hiking in Muir Woods or Skyline park with her boyfriend. During her rare lazy days she likes to enjoy a nice glass of wine and lose herself in a good book. One of her favorites & highly recommended books is Artemis by Andy Weir. She has 2 feline companions, a black cat named Salem and a domestic long hair named Kitten Face. 

Grace(and Coco)

  Ever since she was little she knew she wanted to work with animals. All 4 years of high school she raised pigs and rabbits. She graduated from Vacaville High School and is currently working on my associates degree in General Science. In her free time she loves to take road trips or ride horses with her family. Her long term goal is to finish school and become a Registered Veterinary Technician. 


Coming Soon