Meet Our Team!

Meet the veterinarians & team of All Pet Animal Hospital! We’re pleased to provide exceptional vet care for your pets!

Get to Know Our Team!

We are solely dedicated to your pet’s care! We look forward to getting to know you and hope you’ll take the time to scroll down and get to know us.

Veterinarian

Dr. Samantha Burkhart
Dr. Stephen Treese

Medical Director

Dr. Treese grew up outside of New Orleans and earned his Bachelor’s and Master’s degrees at Louisiana State University. He continued his education at the University of Missouri, earning his Doctor of Veterinary Medicine degree in 2015. Dr. Treese has special interests in orthopedic surgery and ultrasound. Also, he enjoys working closely with wildlife rehabilitators and animal rescue groups.  Dr. Treese has an amusing pet family at home. He has a St. Bernard, Cypress, a blind husky, Blizzard, and two chinchillas. Also, while he never planned to have cats, he now has three: Mama Jame, Orca, and Fluffy Xena.  When Dr. Treese is not caring for animals, he enjoys spending time in his garden. He grows an assortment of roses, pumpkins, and melons. Dr. Treese also tends to three saltwater fish tanks!

Coming Soon logo
Dr. Alaina Kruszewski
Associate Veterinarian

Dr. Kruszewski grew up in Erie, Pennsylvania and where she earned her Bachelor’s Degree at Penn State University. Her continued education was performed at Iowa State University College of Veterinary Medicine where she received her Doctorate of Veterinary Medicine. Outside of work, she enjoys spending her time hiking and swimming with her dog, Nala.

Veterinary Office Staff

Linda Marlin
Kerri

Lead Customer Service Representative

Kerri has been in the veterinary industry for over 15 years with experience including: emergency medicine, dermatology, cardiology and dentistry. She is also a proud Veteran of the United States Air Force. When she is not delivering amazing customer service at All Pet Animal Hospital she enjoys camping, traveling and spending quality time with her family; which consists of her husband, 2 boys and a set of spoiled Pitbulls.

Diane Johnstone
Diane

Customer Service Representative

After a wide variety of previous occupations, Diane decided the veterinary field was the place for her, and she has been with APAH since 2002. She performs a variety of duties around the hospital and has developed a great client relationship with many of APAH’s regular clientele. Diane is a mother of one and grandmother of two and takes care of one African Grey and one Chi-Weiner dog.

Practice Manager

Kristy
Kristy Holzapfel

Practice Manager

Kristy spent the last four years in the financial sector, where she advanced from a Customer Service Specialist to the Director of Operations. Despite her success in finance, her passion for veterinary care remained strong. Before transitioning to finance, Kristy spent 11 years in the veterinary field as a Certified Veterinary Technician. She studied Veterinary Sciences at the Vet Tech Institute in Pittsburgh, PA, earning her Associate’s Degree in Animal Science, and then went on to pass the state boards to become a CVT. Throughout her career, she was deeply committed to providing exceptional care for animals.

In addition to her veterinary background, Kristy holds a Bachelor of Science Degree in Business Management and Administration from Purdue University Online. This combination of veterinary knowledge and business acumen gives her a unique skill set that merges medical expertise with strong leadership and management skills.

Outside of work, Kristy is a proud mother to a beautiful daughter. She treasures time spent with her daughter, significant other, and their dog, Minnie. Kristy enjoys outdoor activities, whether it’s exploring nature or relaxing at the beach, and values the time she spends with her loved ones.

Kristy is excited to return to the veterinary field, eager to leverage her extensive experience, business skills, and passion to make a lasting impact on the animals she cares for and the teams she leads.

Veterinary Nursing Staff

Lynne Schiller
Lynne

LVT

Lynne had spent a number of years as an Information Technology Project Manager when she decided to go back to school for a career change. Lynne volunteered at APAH while attending the Vet Tech Institute of Pittsburgh and completed externships with PVS-EC (a 24-hour emergency veterinary hospital) and the Pittsburgh Zoo. She has been a Veterinary Technician with APAH since Oct 2016 and passed her certification exam in Dec 2016.

Lynne is the proud owner of one very talkative cat.

Coming Soon
Stevie Hogan

Vet Tech

I have 11+ yrs experience as a Veterinary Technician/Nurse, with a background in Shelter Medicine, Mobile Vaccine Clinics, affordable high volume surgery, General Practice, Specialty Surgery, and most recently ER/Trauma and CCU for domestic animals and exotics. Graduated from VTI Pittsburgh in 2015. I have been certified in Fear Free for 4+ yrs, and developed a passion for educating clients and co-workers in different handling and enrichment techniques to be able to do treatments in a low-stress environment whenever possible. My wife and I have a 9.5yr old Cavy Mix named Buddy, and 3 cats. We love finding new trails around Pittsburgh to take Buddy on. I play softball in the summer, and enjoy playing video games and camping.

Linda Marlin
Mindy
Vet Assistant

A veterinary assistant at All Pet Animal Hospital who is dedicated to the well-being of our furry friends. A proud pitbull advocate and fur-parent to a lively crew of 12 dogs, 3 cats, and 10 rabbits. When not at work, you can find her relaxing in the great outdoors with her loving husband and three great kids.

Linda Marlin
Noah

Vet Assistant

Noah recently graduated from Vet Tech Institute in May 2024. He is currently working his way up to becoming a certified veterinary technician. He has 1 loving and energetic cat named Penguin. He is very excited to work with exotics along with dogs and cats. When he isn’t at all pet you can find him playing Roblox, playing Tennis, or spending time with family.