See below for many of our most frequently asked questions. If there is something not answered below, don't hesitate to ask!

How do I schedule an appointment for my pet?

We would love to see you and your pet! Contact our office via phone or email or stop by to schedule. We will do our best to accommodate your schedule with a time that works for you.

When are you open?

We are proud to announce our newly expanded office hours. We will always be available to our clients during normal business hours. Wednesdays are office hours only (no doctor appointments) but we are still glad to answer any questions you may have. Click the expanded office hours link for more 

What if my pet has an emergency?

We are always available for any pet health-related concern during our normal business hours. However, if you experience an emergency that should not wait until the next business day to be seen, please see our Emergency Contacts Page for local resources available after hours.


  • Cash
  • Credit Card
    • VISA, Mastercard, Discover, AmEx
  • Check
  • Care Credit


Unfortunately we do not offer payment plans at this time.

Payment is due at the time of service.

You will be presented with a financial estimate before services are rendered and you will be expected to settle the balance in full at the conclusion of the visit.

We will assist you in applying for Care Credit as an option amongst others for obtaining financing if needed. Ask a staff member for more.


Please contact us at least 2-3 business days BEFORE you need the next prescription or food refill.

To submit a request you can leave us a message through email at, or you can call the hospital at 717.564.4470.

Please include the following with your request:

  • You and your pet's names
  • The medication or food you need refilled
  • Best phone or email for us to let you know it's ready

When your order is ready you will be notified. You can pick up any time during business hours.

Does my indoor pet need vaccines?

The very long story short....YES.

Dr. Crescenzi is dedicated to working with pet owners to develop the best preventive care schedule based on pets needs, age, and lifestyle.

It is true indoor and outdoor pets may have different risk factors that influence the vaccination schedule and preventive care they need.

Rabies is a vaccine that is required by law for all domestic animals. Starting at the age of 2, dogs and cats can have a rabies vaccine that lasts 3 years. *Recently, they found that certain particles (adjuvants) in vaccines (Rabies, in particular) may be putting cats at increased risk for vaccine-associated sarcoma- a potentially deadly form of cancer. Once this was discovered, scientists developed a much safer method to make vaccines without the adjuvants. These vaccines are still fully effective. At Derry Animal Hospital we carry several "non-adjuvanted" vaccines to improve the safety and minimize any negative side effects of vaccination. Ask us for more details!

As a general rule an ounce of prevention is worth a pound of cure and it is much easier to and less expensive to prevent certain illnesses than it is to attempt to treat or manage them.

Talk to the team about your pet's vaccine and preventive care today.

My dog/cat has fleas.  What should I do?

If you think your pet has fleas, it is important to treat as fast as possible to prevent further spread in your home environment as well as tapeworm infestations that pets get from ingesting the fleas that are bothering them.

Bathe your pet (from the neck back, not the face) -if you can safely- to remove live fleas. Thoroughly clean and vacuum the environment if indoors. Remember to launder fabric items in hot water if able. Dilute bleach should also be used if it won't ruin your items.

Apply your veterinary prescribed flea and tick prevention if appropriate. We typically do not recommend OTC flea and tick products unless you discuss them with the doctor first. We want to be sure you are getting the best product to fit your needs and budget.

If you need preventatives or feel yours are ineffective, Contact Us to schedule an appointment or possibly pick up more if you are approved by the doctor without a new exam (for existing patients recently seen by vet).

If your pet seems to be itching, shaking, rubbing, developing scabs, dark flea dander, or seems to have signs of infection like abnormal discharge or odor on the skin or ears, please Contact Us to schedule an appointment to see the vet as soon as possible.

Talk to any staff member about our parasite preventatives today.

Do you euthanize pets?

If the doctor agrees that it is a humane and ethical decision to euthanize an animal, we do perform this service.

Saying goodbye to a pet is never easy, even when you know it may be the most humane option we have to offer.

Dr. Crescenzi has worked for several years with a hospice and euthanasia service as well as in an emergency environment where loss of life is an unfortunate reality for many pets with critical medical conditions. During this time she has gained experience with handling not only the medical side of the euthanasia process in the most humane way possible, but also in helping families and owners during that difficult time of loss and emotional struggle.

Every single pet is treated as a dignified individual. It is our paramount goal to make the passing of each animal as pain and fear free as possible and to look at humane euthanasia as the last nice thing we can do for our beloved companions.

We assure you that your pet is in good hands, even in the toughest of times. You are welcome to have as much or as little involvement as you would like in the euthanasia and aftercare process.

It is our pleasure to discuss this further with you.

Are you accepting new clients?

Absolutely! We would love to get to know you and your pets! Just Contact Us and we will get you an appointment with the veterinarian. Our expanded hours should help to better accommodate your schedule.