About Us

Meet the Doctors

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Meet the Staff

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Take a Hospital Tour

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MEET THE DOCTORS

Dr. Jocelyn Hollway, DVM

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Owner/Hospital Director/Veterinarian

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Dr. Halley Diehl, DVM

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Associate Veterinarian

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Dr. Liz Valles, DVM

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Associate Veterinarian

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Dr. Jocelyn Hollway, DVM

Veterinarian/Owner

Dr. Hollway is a York County native and realized her love for animals at a very early age. Growing up on a farm surrounded by horses, dogs and cats, it was easy to recognize her passion for the field of veterinary medicine.   


Dr. Hollway attended Ross University School of Veterinary Medicine in St. Kitts and completed her clinical year at Kansas State University.


Upon graduation from veterinary school, she started her career at an emergency hospital outside of Philadelphia where she worked for two years.  After giving birth to her beautiful daughter, she and her husband decided to return to York to be closer to family.


Dr. Hollway has 2 dogs, Godiva a "coconut retriever" from St. Kitts, and Jamie a rescue from the SPCA.  She also has 5 cats; Louie, who has saved many lives of his own as a feline blood donor at Kansas State University; Fendi, a long haired purr-machine and lap-warmer; Vanilla Bean, a rescue who melted her heart when a client found her outside; Mya, affectionately known as "My-My" by her daughter; and lastly, our newest addition, a cat who thinks 3 legs is all you really need, Hiccup.

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Dr. Halley Diehl

Veterinarian

Graduating from North Carolina State University’s College of Veterinary Medicine, Dr. Halley Deihl is a Pennsylvania native, originally from the Lehigh Valley and has called York County home since 2007.  


Dr. Deihl lives on 64-rolling acres with her husband, Aaron and their two

young daughters. 


She enjoys assisting owners with both preventative medicine and unwell pet

consultations, in addition to soft tissue surgeries and dental procedures. Her personal interests include: cooking/baking and spending time with her family.

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Dr. Liz Valles, DVM

Veterinarian

Dr. Valles is a part time staff member at our practice. A California native who enjoyed vet school at Washington State University and graduated in 2003. Prior to vet school Dr. Valles worked for many years at a clinic while her children were growing up.


She enjoys all aspects of veterinary work. She is definitely a "people person" and usually has an interesting or humorous animal story to share.

In her spare time she enjoys being with her husband, children, and grandchildren. She competes in dog agility with her Jack Russells and her Lab mix. Her favorite hobbies are jigsaw puzzles, reading , and making jewelry.


Providing excellent care for your furry family members is her top priority as a team member of the Seven Valleys Veterinary Hospital. 

Meet Our Amazing Staff

Kelly Kiehner

Client Care Specialist

I am a southern York County native, with a lifelong appreciation of animals. I joined SVVH in 2012 where I started  as a veterinary assistant and now am receptionist. I love being able to interact with both the owners and their animals. 


I enjoy spending  free time with my mini me Kaitlyn, and my husband, Josh. As a family we love all of our animals, we have 3 dogs, 2 guinea pigs and some freshwater fish. Our dogs are Mattie a lab mix, Stryker a Catahoula leopard dog who is training to be my husband's therapy dog, and Ed a Boston terrier. We have two female guinea pigs named Ladybug and Bacon.  

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Jessica McKenzie

Veterinary Technician

Born and raised on a small farm in Seven Valleys, Pennsylvania, I’ve spent most of my life around and caring for animals.  I always knew I would devote myself to a lifelong career in caring for them. I graduated from Spring Grove High School in 2013. Soon after I began attending York County Career Institute, where I graduated with an Associate’s Degree in 2015. I started my Veterinary Technician career four years ago at Seven Valleys Veterinary Hospital; and consider the patients, clients, and fellow employees to be family. 


My furry family consists of 2 dogs, Dio and Franco. Four cats, Sammy, Bella, Scraggles, and Smokey. Two Donkeys, Hershey and Donkey, one goat named Violet, and many chickens. 

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Kayla Mayers

Veterinary Technician

I joined the Seven Valleys Veterinary team in June of 2017, shortly after graduating from YTI Career Institute where I earned an Associate’s Degree in Specialized Science. Working here has given me a variety of responsibilities and tasks, but most of all it has made me realize I would love to do this for the rest of my life. I’m very dedicated to the health of the patients  that my fellow employees  and I provide care for. 


I currently reside just outside of Gettysburg where I've  lived with my family and our four-legged babies including Nova, my Labrador Retriever/Border Collie mix, River, the French Bulldog, and our two cats Oakley and Kali. In my free time I enjoy creating artwork, traveling, or volunteering at my local church. 

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Wendy Miller

Veterinary Technician

My name is Wendy Miller.  I am a single mom with an adult son and have lived in Glen Rock all my life. I made a life change at 43 and chose to go back to school to be a veterinary nurse/technician.


I have 2 dogs, Rex and Roxy, both chihuahuas. A cat named Kat that I adopted from the York County SPCA when working there in the spay and neuter clinic. I came to work at Seven Valleys after I realized the spay/neuter clinic was to much for me. 


Working in the small clinic atmosphere is rewarding!  Getting to know the owners and helping their furry family members is great. 

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Hospital Tour Coming Soon. Be Sure To Check Back In!