Cat Services

Dog Services

Horse Services


Mark Jeffers Married to Michele Zajac Hospital Administrator and Facilities Manager. Mark is passionate about his work at the clinic and his family. He and Michele have 1 dog and 4 cats. In his spare time Mark enjoys being outdoors.

BHVH Staff

Dr. Michele ZajacDr. Michele Zajac
Dr. Michele Zajac graduated from Lackawanna Trail High School and attended the University of Scranton. She graduated from Kansas State University College of Veterinary Medicine in 1993. She then began working for other veterinary practices in the area while developing her mobile practice. In 2001 Bunker Hill Veterinary Hospital, P.C. was established in Nicholson, PA, offering care for both large and small animals. She opened her current practice in Factoryville, PA in 2003. Her husband Mark helps to keep the office running smoothly. Dr. Michele Zajac enjoys spending time with their dog and 4 cats, gardening, eating, and playing the guitar.  Photo on the right is Dr. Michele’s dog “Onyx”, a therapy dog at a local nursing facility.

Dr. Michele with her dog “Onyx”Dr. Michele’s dog “Onyx”
Dr. Denise Hardisky
Dr. Denise Hardisky grew up in Nicholson PA and is a recent graduate from Cornell University.  She recently joined our team in May.  Her pets include, two cats: Evvie and Bells, and her dog Bailey which she enjoys spending time with.  She also enjoys working on her family’s 100 head sheep operation in Nicholson. Denise’s hobbies include hiking, reading, showing livestock, and spending time with her family and friends.

Certified Veterinary Technicians                 Veterinary Assistants

Leslie HuntLeslie Green

Has been in the veterinary field since 2010. She recently graduated from Johnson College. She has 3 horses, 1 pony, 2 dogs and a cat.

Kelsey BurgessKelsey Burgess

Has been in the veterinary field for 10 years. She has a BS degree in Animal Sciences from Penn State University with a minor in equine studies. Kelsey is currently taking classes through Penn Foster. She has 2 horses, 2 cats, 1 dog and a rabbit. She loves to ride horses, hike, fish and travel.

Sherry ThompsonSherry Thompson

Has been in veterinary field for 9 years, prior to that she worked in human medicine. Sherry has 6 pets at home.  In her spare time she loves riding her horse Brandee.

Veterinary Assistants (continued)

Jackie HoganJackie Hogan

Has been in the veterinary field since 2007. She previously worked in New York and Florida where she also volunteered at the Jacksonville Zoo. She has 5 cats and enjoys swimming, hiking, traveling and fishing.

Garrett HarveyGarret Harvey

Is a graduate of Kings College and has been with BHVH for almost a year after an extended period of volunteer work. He has also been accepted to the Univ. of Pennsylvania’s School of Veterinary Medicine, where he’ll begin his studies this coming August. Garrett loves spending time with his 4-year old son Shea. He also enjoys the outdoors, especially hunting and fishing. And he’s also a big Flyers fan and an outstanding baseball player.

KarlaKarla Kovaleski

Has been doing Animal Rescue for 25 years with some background in the veterinary field. She has 2 dogs, 2 indoor cats, 17 outdoor stray cats and an African Grey Parrot. In her spare time, she enjoys spending time with her husband, gardening, fishing and playing guitar.


Lisa DixonLisa Dixon

Has been in veterinary field since 1984. She has been involved with many rescue groups. She currently has 6 cats and 1 dog. Lisa enjoys motorcycling and travel.

Sue HughesSue Hughes

Has worked in the veterinary field for 10 years. Sue loves animals and has 6 cats and 1 dog. She enjoys taking long walks with her dog and relaxing at home with family.

Susie PringleSusie Pringle

Started at Bunker Hill Veterinary Hospital in 2011. She has always been a pet owner and currently has 2 cats and 2 fish. Susie enjoys hiking, gardening, reading and baking.

Our Mascots


Onyx “The Wonder Dog” has been Dr. Michele and Mark’s faithful companion for more than 13 years! Earlier in her career, Onyx was a therapy dog at Golden Living Centers but she is now enjoying retirement with all of her friends at BHVH. When you see her, remember that she just loves a snack and a little attention!


Lady is our newest mascot here at BHVH. She comes to us from our long time friend and client, Art Carey. Sadly, Art passed away recently and lucky for us, he bequeathed Lady to Dr. Michele. Lady is a sweet, friendly Springer Spaniel and is a perfect addition to the BHVH family.