All Pet Animal Hospital
5354 William Flinn Hwy
Gibsonia, PA 15044
Phone: (724) 444-6600
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Meet Our Staff


Edward  Bennett

Dr. Edward Bennett

Dr. Bennett is a native of Pittsburgh and grew up in Highland Park near the Pittsburgh Zoo.  Veterinary Medicine was his lifelong ambition and he spent many summers and vacations from high school and college assisting the vets at the zoo. 

He received his BA in Psychology from the University of Rochester, a BS in Animal Science from the Pennsylvania State University, and a BSA in Biology from the University of Georgia. He received his DVM from the University of Georgia  and has been practicing small and exotic animal medicine since 1989.

Carolee W. Switalski

Dr. Carolee W. Switalski

Dr. Switalski is a graduate of the University of Georgia, College of Veterinary Medicine. She has over 17 years experience working with zoo and exotic animals, and for the past 10 years she has been working as a relief veterinarian in the local area. Currently, she spends 2 days per week at APAH focusing on canine and feline medicine. 

Dr. Switalski is married with 3 adult children and 4 cats, and loves cooking, traveling, boating, bicycling and spoiling her grandson.

Emily Gardner

Dr. Emily Gardner

Dr. Gardner is originally from upstate New York, and received her B.A. in biology with a chemistry minor from Oberlin College in Ohio. After college she spent a few years working in small animal hospitals, and volunteering at the HAR wildlife rehabilitation center and with retired thoroughbred racehorses. Dr. Gardner graduated with a VMD from the University of Pnnsylvania School of Veterinary Medicine in Philadelphia, with externships at the Philadelphia Zoo and Tufts University Wildlife Hospital. She completed a small animal rotating internship at Pittsburgh Veterinary Specialty and Emergency Center with a focus on energency medicine. Dr. Gardner is a member of the Pittsburgh Civic Orchestra and enjoys yoga, travel, and spending time with her cat, Pippa.

Samantha Mershon

Dr. Samantha Mershon

Dr. Mershon is a Pittsburgh native with a BS in biochemistry from Juniata College and received her DVM from the Atlantic Veterinary College at the University of Prince Edward Island. Outside of work Dr. Mershon loves kayaking, hiking, and reading. She enjoys spending time with her 2 cats and her cornsnake. She loves working with all types of companion critters and is excited to meet you and your pets.

Veterinary Office Staff

Linda  Marlin

Linda Marlin
Practice Manager

Linda has worked as a Veterinary Technician since 1986 and has been with APAH since 1998. Her main focus at APAH is Practice Manager, but she also helps out where needed during busy hours.

Linda is married with 2 daughters and 3 grandchildren and her love for animals really shows as she cares for her furry/feathered children, as well:  1 Chihuahua, 1 Boston Terrier, 1 cat and 1 bird.

Diane  Johnstone

Diane Johnstone
Head Receptionist

After a wide variety of previous occupations, Diane decided the veterinary field was the place for her, and 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 mother of 1, grandmother of 2 and takes care of 1 African Grey and 1 Chi-Weiner dog.

Jennifer Zourelias

Jennifer Zourelias

Jennifer has been a receptionist at All Pet Animal Hospital since September of 2021.  She has been in the veterinary field for about 10 years as both a receptionist and veterinary assistant.  Jennifer grew up near Gibsonia and shares her house with her weiner dog "Reilly".  Outside of work, she spendsvtime with her nephew and niece or just relaxing.

Kathy Lawley

Veterinary Nursing Staff

Alicia Mrazek, LVT

Alicia Mrazek, LVT

Alicia graduated from the Vet Tech Institute of Pittsburgh in June 2019. We are happy to announce that she passed her state board exams in November of 2019! Her love of animals drove her to follow a career where she could ensure that they were well taken care of. Additionally, it was her specific interest in exotics that brought her here to All Pet Animal Hospital.

When Alicia isn't helping out at the hospital, she enjoys spending time with her beloved morkie, Crosby, and playing video games.

 Lynne   Schiller, LVT

Lynne Schiller, 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 1 very talkative cat.

Nina Collavo

Nina Collavo, LVT

Nina graduated from the Vet Tech Institute in February of 2021 and ha recently passed her state board exam in December.  She completed her externship with us and her interest in exotics has led her to a full-time position.  She has always dreamt of a career with animals and she is very happy to be a part of the All Pet team.

Nina has two pets of her own; "Baxter" who is a beagle she adopted through West Deer Dog Shelter, and "Puff" the noisy and retired office kitty.

April  Scholtz

April Scholtz

April is a graduate of the Median School of Alllied Health Careers. She has 24 years experience as a veterinary technician.  April joined APAH in 2018 and is thoroughly enjoying the diverse clientele and patients seen at our hospital. 

However, her heart belongs to her husband and her dog, "Liberty". The three of them love to go up to their camp in Tionesta as often as possible!

Courtney Robinson

Courtney Robinson

Courtney is a graduate of Median School of Allied Health Careers.  In 2003 she completed her externship and was hired at the Pittsburgh Veterinary Speciality and Emergency Clinic.  She was employed there for for 18 years in the Surgery Department.  Although she loved surgery, she needed a change and joined All Pet Animal Hospital in November 2021 and instantly fell in love with the exotics and diversity of the practice.  When she is not at work, she enjoys time with her family; husband Elliott, son Brooks, and daughter Kendall.  Her family includes 3 dogs; Gus, Gemma, and Rodeo and 2 cats; Bruce and Panda.

Imelda Robles

Imelda Robles
Veterinary Assistant

Imelda was born and raised in San Jose, CA and is a first-generation college student.  She has been working in the veterinary field since 2018 and is currently working towards a veterinary technology degree at Penn Foster College.  Imelda is pursuing a VTS in oncology because she is passionate about caring for both pets and owners.  Imelda grew up around farm animals such as chickens, sheep, goats, rabbits, and horses.  New to Pittsburgh, she enjoys exploring the city, reading, and play time with her dog and two cats Lobo, Zeke, and Colette.  She is eager to work with exotic pets and excited to learn more about them.

Mindy Beacom
Veterinary Assistant

“We took our 2 kitties for their yearly check-up. Dr. Pease was excellent with them. The Doctor & the tech trimmed their nails with ease which isn't an easy thing to do with our kitties. Would recommend this practice to everyone.”
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