Cross Keys Animal Hospital

Cross Keys Animal Hospital is a full-service practice that strives to offer excellent care to our patients. We understand the uniqueness of each pet, and we are committed to working with each pet owner to help ensure his or her pet’s overall wellness. Our highly trained staff and state-of-the-art equipment are important to the care we provide, but that is only part of our story. You and your pet will be treated with care, compassion, and professionalism, which are critical to the friendship we hope to build with you. Call today to learn about our services or to schedule an appointment.
  • 2071 N. Black Horse Pike
  • Williamstown, NJ 08094
  • Phone: 856-740-3700
  • Fax: 856-740-3337
  • Email Us
  • Get Directions
  • Mon,Thu: 8:30AM - 8:00PM
  • Tu, W, F: 8:30AM - 7:30PM
  • Sat: 8:30 AM - Noon
  • Sun: Closed
  • After hours Emergency? Call: 215-898-4680
  • Dr. Mary Van Kooy

    Dr. Mary Van Kooy has practiced locally for over 20 years.  She received her undergraduate degree in Animal Science at Rutgers University in New Brunswick, New Jersey.  She graduated Cum Laude from the University of Pennsylvania in 1991.  She, along with Dr. Deborah Masso, opened Cross Keys Animal Hospital in 2001.  Dr. Van Kooy’s veterinary interests include internal medicine, dermatology and pathology.  Dr. Van Kooy resides in New Jersey with her husband.  Her two children are currently attending college.  Dr. Van Kooy’s pets include two dogs, two cats and one corn snake.
    Education:
    University of Pennsylvania
  • Dr. Deborah Masso

    Dr. Deborah Masso received her undergraduate degree in Animal Science with a minor in Pre-Veterinary Medicine from Rutgers University in New Brunswick, New Jersey in 1993. She received her doctorate in veterinary medicine from the Ohio State University College of Veterinary Medicine in 1997.  Dr. Masso, along with Dr. Van Kooy, opened Cross Keys Animal Hospital in 2001.  She is a member of the New Jersey Veterinary Medical Association and the American Veterinary Medical Association. Dr. Masso resides in New Jersey with her husband and four children.  Her pets include 2 dogs and 1 cat.
    Education:
    Ohio State University College of Veterinary Medicine
  • Dr. Ruth Ann Wilson

    Dr. Ruth Ann Wilson came to New Jersey from White Sulphur Springs, West Virginia. She received her doctorate in veterinary medicine at the University of Georgia College of Veterinary Medicine.  Dr. Wilson developed an interest in alternative medicine and is a Certified Acupuncturist.  She uses acupuncture to treat hip dysplasia, arthritis, feline urine spraying, kidney disease plus an array of other ailments along with offering traditional medical treatments.  Dr. Wilson is an active board member of the Pitman Rotary Club.  She resides in New Jersey with her husband, two sons and four cats.
    Education:
    University of Georgia College of Veterinary Medicine
  • Dr. Mary Wilkes

    Dr. Mary Wilkes is the newest doctor addition to our staff. Dr. Wilkes received her degree of veterinary medicine at the University of Pennsylvania.  Dr. Wilkes' areas of interests include: critical care and emergency, anesthesia, feline medicine and neurology.  Dr. Wilkes is an adjunct professor at Richard Stockton College of New Jersey. She also volunteers her time for L.I.C.K., Life Improvement for Cats and Kittens, an animal rescue organization in Mays Landing, New Jersey.  Dr. Wilkes resides in New Jersey with her family.
    Education:
    University of Pennsylvania
  • Penny

    Penny, one of our receptionists, has been with our practice since its opening in 2001.  Penny has a dog named Fiona.

  • Racquel

    Racquel is part of the reception team at Cross Keys Animal Hospital. She was a long time client of Cross Keys who decided to venture into a career at our hospital. She began working here in 2007. Racquel has two dogs and one cat.

  • Anna Marie

    Anna Marie is one of the receptionists you will see when you enter the doors of Cross Keys Animal Hospital. She has a Yorkie, MeMe, as well as two cats.

  • Donna

    Donna is another bright face you will encounter when walking through the doors of Cross Keys Animal Hospital.  She is a member of our reception team and is also an active board member for Save the Animals Foundation.  Donna has a wide variety of dogs and cats.

  • Gretchen

    Gretchen is part of the reception team here at Cross Keys. She was a long time client before she started working here in 2012. Gretchen lives in Williamstown with her family. She has 4 dogs and 4 cats.

  • Debbie, CVT

    Debbie has been part of our technical team for over 6 years.  She received her associates degree in Applied Science from Camden County College and went on to pass her boards and become a Certified Veterinary Technician in the State of New Jersey. Debbie has one dog, a rat, plenty of fish, frogs and one horse.

  • Melissa, RVT

    Melissa Brittingham is the event coordinator at Cross Keys Animal Hospital. She started working at Cross Keys in January 2005. She received her Bachelor’s Degree in Animal Science at the University of Delaware and is also a Registered Veterinary Technician who has been active in the field of veterinary medicine for over 18 years. Melissa recently graduated from the University of Phoenix with a Master’s in Adult Education and Training. She is an adjunct professor in the Camden County College veterinary technician program. Melissa resides in Washington Township with her two children and has three dogs and one cat.


  • Jennifer, CVT

    Jennifer has been part of our veterinary technical team for 8 years now. She received her associates degree in Applied Science from Camden County College and passed her boards to become a Certified Veterinary Technician in the State of New Jersey. Jennifer has 3 cats.

  • Bonnie

    Bonnie has been a technician here at Cross Keys for over 3 years.  Bonnie has 2 dogs.

  • Jenn, CVT

    Jenn has been part of our veterinary technical team since August 2012 when she started as an intern. She received her Associate’s Degree in Veterinary Technology from Camden County College and went on to pass her boards to become a Certified Veterinary Technician in the State of New Jersey. Before becoming a veterinary technician, Jenn was an art major and a hairdresser. She has 3 dogs and 4 cats.

  • Kristin

    Kristin is part of our technical team here at Cross Keys. She started as an intern before becoming a full-time employee in January 2015. Kristin graduated from Camden County College with an Associate’s Degree in Veterinary Technology. She works with various rescues in the area and has 3 dogs, 1 cat, and some fish. Kristin is also a licensed practical nurse (LPN) and worked in hospice care before becoming a veterinary technician. Her favorite animal is a giraffe, and she would own one if she could. 

  • Valarie, CVT

    Valarie is part of the technical team and started working here at Cross Keys in January 2016. Val is from Nebraska and graduated from Nebraska College of Technical Agriculture with an Associate's of Applied Science in the Veterinary Technical System. She went on to become a Certified Veterinary Technician in the State of Nebraska. She first started as a technician in 2000 when she graduated from school. She just moved to New Jersey and has no pets here but has cows on the farm in Nebraska.

  • Alex

    Alex has been part of our staff for 5 years now.  She originally started in our kennel area but is now in training as a technician assistant and receptionist while pursuing a degree in Animal Science and plans to go to veterinary school to become a veterinarian specializing in equine medicine.  Alex also is a horseback riding instructor for local children in the community.  She currently has 4 dogs, 6 cats and 3 horses.

  • Skittles

    Skittles is our hospital cat. He spends most of his time eating or waiting for us to feed him. When he’s not busy doing that, he might be found chewing wires to expensive medical equipment.

    Interests:
    food, begging for food, swatting at or biting us when we pet him
  • Gus

    Gus has been our hospital cat for the past 10 years.  He spends most of his days walking across the keyboard when we are trying to type and waiting for a staff member to leave their lunch unattended.  Gus will eat about anything - except for veggies!
    Interests:
    stealing food, knocking charts on the floor and surfing the internet while asleep on the keyboard