Our Staff

Valerie Olszak, DVM

Dr. Olszak is a long time resident of the Orwell area. She grew up on her parents' farm on Penniman Rd. where her family raised all kinds of animals including cows, pigs, goats, chickens and geese. Early in her childhood she developed her passion to help animals. At the age of ten, she organized an animal shelter and took in unwanted animals in her neighborhood and cared for them until she could find loving homes for them.

Her father, also a veterinarian had a great influence on her career choice as well as her choice of veterinary school. He came to the U.S.A. as a political refugee after World War II. It was while on a very memorable emotional trip to Poland with her family that Dr. Olszak decided she would follow in her father's footsteps and attend the same veterinary school, Warsaw School of Agriculture, Faculty of Veterinary Medicine. She also completed undergraduate studies at Kent State University and the Jagiellonian University in Cracow, Poland. Of course, to keep up with the many advances in veterinary medicine she has attended countless hours of continuing education many of them advanced courses in specific disciplines. She has completed a Post Graduate Institute course in Small Animal Dermatology.

Dr. Olszak's professional experience includes the Buffalo Zoological Gardens in Buffalo, N.Y.,a mixed animal practice, a herd health practice, a small animal practice and emergency service. In 1983 she established her own practice on her family's farm originally as a large animal practice which gradually grew into a mixed practice. To accommodate the rapid growth of the practice she purchased and completely remodeled the building where her small animal practice is currently.

Needless to say, Dr. Olszak is very proud of her Polish heritage and she enjoys speaking Polish when given the opportunity. She has a true passion for the veterinary profession and is always excited about any new information she can use to help her patients. She is a firm believer in continuing education for herself and her staff and she emphasizes the importance of educating her clients so they are able to make informed decisions about their pets' health care. In order to provide the best care possible to her patients she has cultivated relationships with many board-certified specialists so when necessary she can consult with or refer her patients to a veterinarian with the proper skill set or equipment necessary to do what is best for her patient. In some cases the specialist comes to our hospital as a convenience for the client. Dr. Olszak has literally dedicated years to trying to create the best possible veterinary hospital for all the pets in the Grand Valley and surrounding areas. She strives to be the pet's advocate when advising clients of treatment plans because she knows they cannot speak for themselves. She is also empathetic and sensitive to the economic hardships people in her community are facing. For this reason she and her staff volunteer their time and energy to hold low-cost rabies vaccination clinics,create puppy and kitten giveaways, and in-clinic money-saving specials.

Dr. Olszak and her husband are the proud parents of three beautiful children and the loving caretakers of a menagerie which includes (most of them rescues) 2 horses, 3 dogs 3 birds and 3 cats for now. She loves people almost as much as she loves animals. She is a very honest, caring, conscientious, hard-working veterinarian. She truly cherishes the relationships she has had the privilege to form with her clients and their furry or feathered or scaled family members. You can always trust her to do her utmost to help you and your pet.


Elizabeth Kocab, DVM

Dr. Kocab is a 2017 graduate of Oklahoma State University Center for Veterinary Health Services. She grew up and currently resides in Gustavus, Ohio. For more than 40 years, her family has owned and managed a cow-calf operation of black angus cattle, which is where she found her passion for veterinary medicine.

Dr. Kocab graduated with a Bachelor’s degree in Zoology from Kent State University in 2013. She was fortunate to have the opportunity to earn her Doctorate of Veterinary Medicine degree from Oklahoma State University, which allowed her to find her interest in large animal medicine and theriogenology (animal reproduction). Dr. Kocab was a member of the Bovine Palpation Team throughout vet school and competed nationally in all aspects of cattle reproduction and pregnancy diagnosis. She earned the Proficiency in Theriogenology award in 2017 and is excited to be able to extend her knowledge to local farms. Dr. Kocab provides both large and small animal medicine at Grand Valley Veterinary Hospital covering areas of Northeast Ohio and Northwest Pennsylvania.

Aside from helping her patients, Dr. Kocab enjoys spending time with her family and friends, camping, fishing, and working on the family farm. She has a terrier mix, named Dora, and an albino leopard gecko, named Chicken; both have traveled and lived with her in Oklahoma and Ohio. She is excited to be living in Ohio again and creating relationships with clients, farmers, and their pets.


Chris Miller

Chris grew up loving and rescuing animals much to the chagrin of her grandparents and father. As an adult while raising a family, Chris continued her love of animals and rescued many with her family�s support.

Chris became involved with the Animal Welfare League of Trumbull County and worked there for several years. She has also been a part of many other rescues such as TNR of Warren and shelterpuppies.org helping with fundraisers and fostering animals.

In March of 2014 Chris joined the staff of Grand Valley Veterinary Hospital. She loves the staff she works with and the work environment at GVVH. Chris greatly enjoys the clients and helping to ensure their pets are taken care of.

Chris has many pets at home including eight cats, three dogs, and one foster cat, who all love visiting Grand Valley Veterinary Hospital.


Samantha Krieg

Samantha has been an integral part of Grand Valley Veterinary Hospital for over 10 years. Her family is from the Windsor area, but she currently resides in Colebrook with her husband and two daughters. Samantha serves as a receptionist, assistant, and office manager at GVVH.

In her spare time, Samantha volunteers at Windsor Fire Department as a part of the K-9 Search and Rescue team and is a firefighter/EMT. Samantha is also a Sales Leader with Norwex. On her days off, she enjoys horseback riding, spending time with her family and volunteering in her daughters class when needed.

Samantha has 2 Golden Retrievers, Razor and Jax, 2 ponies, 1 cat and 1 parakeet at home. She looks forward to many years of assisting you with the best possible care of your pets.


Katie Thayer

Katie is a local resident of Rome, Ohio. Growing up loving animals, she is thrilled to now be working at Grand Valley Veterinary Hospital. Katie can be found assisting the doctors during routine exams, surgeries, farm calls, as well as greeting clients at the front desk.

She has a variety of animals at home, including two German Shepherd dogs, a new mix breed puppy, two American Quarter horses, and a cat. In her spare time, she can be found with family and friends, trail riding, and barrel racing.

Katie has been a member of our practice since September of 2016 and looks forward to assisting to care for your pets for many years.


Nichole Williams

Nichole has lived in Southington, Ohio for the past 20 years. Her love for animals stemmed from her grandfather, who owned a successful veterinary clinic. From an early age, Nichole would bring home stray animals and care for them. As an adolescent, she was heavily involved in 4-H with several different species. Today, she has several cats and dogs of her own. Nichole has three children and graduated from Vet Tech Institute. She loves her job at GVVH and enjoys meeting the clients and pets.


Diana White

Diana is a long-time resident of the Grand Valley area. She has been with the team at GVVH since September of 2017. She is currently taking classes for Middle Childhood Education. She enjoys spending time with her family and friends, photography, nature and reading in her spare time.

Diana can be found at the front desk as a receptionist, ready to greet you and your pets and help with any questions you may have. She is so excited to be a part of the team and looks forward meeting you and your pets!

Did you know? Cats can have up to 290 bones and 517 muscles in their bodies.

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