Office Hours


9:00 am-5:00 pm


9:00 am-5:00 pm




9:00 am-5:00 pm


9:00 am-5:00 pm


8:00 am-12:00 pm



Welcome to Hamilton Veterinary Hospital

Hamilton Veterinary Hospital
18 East Park Ave Trenton, NJ 08610


609-888-1878 FAX


Dr. Mary E Moon VMD, Owner, Educated in Canine and Feline Medicine.

Dr. MEGAN EMMA DVM, Educated in Canine and Feline Medicine.

Dr. JUDY PASSMORE DVM, Educated in Canine and Feline Medicine.

Dr. NANCY SUNG VMD, Educated in Canine and Feline Medicine.

Dr. Mindy Feldmen DVM, Educated in Canine and Feline Medicine.

Dr. Brian Ashmoore DVM, Educated in Canine and Feline Medicine.

Hamilton Veterinary Hospital

Since opening in 1970 the doctors and staff of the Hamilton Veterinary Hospital have been providing the pets of central and south central New Jersey with premiere veterinary care.
Our team of professionals provides personalized, individualized care and service to our all patients within a compassionate and respectful environment. Responsive, hands-on care allows our doctors to tailor treatment specifically to individual patient needs. Medical, dental and wellness care is available to your pet during our regular hours, as well as a full range of surgical options, if necessary. After hours care also is available but provided by local emergency hospitals. We prefer that you have an appointment to see us, but walk-ins are welcome. 
Our website is a valuable tool containing a wealth of basic information that will help you care for your pet. The site also can be used as a portal for round-the -clock access to your pet's medical history and records. Online shopping is available through our website too. Here you may order your pet's prescription drugs, flea and tick preventatives and heartworm medications. Other products also are available. 
Feel free to schedule an appointment or email any questions to our friendly and knowledgeable staff at [email protected] For those preferring more traditional methods, please phone us at 609-888-3400. Remember, your pet's well-being is our primary concern.

Visit our Facebook page.

Feb 8, 2021:

February is #NationalPetDentalHealthMonth. 

We are offering a discount coupon to be used when you schedule your pet for a dental. Just show us the coupon or copy or print it out and bring it with you at the time of your appointment.

Dental Coupon

Posted: Feb 18, 2021

Update: The hospital will be open at 8:00 AM Friday, Feb 19, 2021Please call or text before coming to the hospital. Use (609-203-7818) or (609-218-3775) for texting only.

Due to severe weather and forecast the hospital will be closed on Monday Feb18, 2021. Please keep checking here or on our Facebook page on closings or delayed openings. Please keep your pets and yourself safe. 

Dog and Cat in snow

Posted : Jan 12, 2021

To Our Clients:

To help in communication issues, we have added two phones for texting to the hospital. These phones are texting only. When you arrive at the hospital, use (609-203-7818) or (609-218-3775). Tell us your name, what parking spot you're in and whether you're here for an appointment (appt) or medication (meds). Use abbreviations when texting. We hope this will help reduce waiting time and issues of not being able to reach us.

Thank you from the Staff of HVH.

Posted Jan 11, 2021

We will be closed on Friday Jan 15, 2021. We will reopen on Saturday Jan 16 at 8:00am.

Posted Dec 15, 2020

With a chance of winter storm this week, we want to make sure to keep you informed on our closings and delayed openings. We will be posting here and on our facebook page.  You can go to our Facebook page by clicking above link. If you are in need of emergency care for your pet you can call NorthStar Vets at 609-259-8300, Cares at 215-750-2774 or VSEC at 215-750-7884.

Snow Storm

Posted Dec 15, 2020

Christmas Schedule 2020

June 1, 2020, Covid-19 UP-Date:

To the clients who have appointments, please follow the instructions of our staff when arriving at the hospital. EVERYONE is required to wear facial coverage, please stay in your car when you arrive, call the office at 609-888-3400 to announce our arrival. Please have a written note on the reason for visit and any concerns you may have for your pet. One of our staff will come out to take care of you or your pet. Please be safe to protect yourselves and our staff.

COVID-19 OUTBREAK PRECAUTIONS:  We have posted new guide lines for the hospital while we have this outbreak. Please read and follow the recommendations made in the Blog page. You can also find it on our Facebook page by click on the icon above. 

Hospital hours have been up dated during this crisis. These may change as required by guide lines set by state or local government. Please check back often or on our Facebook page.

New Up to Date info on the Top Pet Insurance Companies. More information is available on our Library Page. 


Blog Posting on Leptospirosis by Dr. Emma.  Please click here to read blog.  Spanish version on same page.

Warning:  Leptospirosis outbreak has increase in New Jersey. We have had several suspected cases in the last few months and two deaths.  Please click here  to read more about the disease and how to prevent it from affecting you pets. If you have any question please contact us so we may help you prevent this disease. 609-888-3400.

We have a new Blog on this years Tick Season. Just click on Blog to read.

Bravecto Promo, now until April 30, 2019. To see details click here.


We have a product called Bravecto that will protect your pets for up to 12 weeks by giving just 1 chew tablet. That's THREE months of protection. For more information click on Bravecto. We carry Bravecto in our hospital or on our on line pharmacy's.

Along with the Ticks and Fleas comes summer injuries or illnesses. Are you able to cover the cost of an illness or injury? There are many insurance companies out there but, we have made it a little easier for you to decide what is right for you and your pet. Click here to learn more!

Our Four Legged Friends

Meet Our Doctors

  • Mary E. Moon

    Dr. Mary Moon graduated from The University of Pennsylvania School of Veterinary Medicine in 1983. Dr. Moon is a member of the New Jersey Veterinary Medical Association. She has also been a past member on the executive board for American Veterinary Medical Association. Dr. Moon has also been a member of American Animal Hospital Association for the past 20 years. With the retirement of her father, Dr. Calvin Moon, Mary has been the owner since 1995. She loves to paint landscape scenes in oils and is now working with pastels. Some of her paintings and sketches are hanging in our office.

  • Judy Passmore

    Dr. Judy Passmore graduated from Michigan State University College of Veterinary Medicine in 1982. Judy initially worked in equine practice. In 1994, Judy started working with small animals and joined our hospital in 1997. Judy enjoys seeing both cats and dogs, with a special interest in feline medicine. Dr. Passmore is a member of the AVMA, and the AAFP. She enjoys her cats, reading and traveling.

  • Nancy Sung

    Dr. Nancy Sung has graduated from University of Pennsylvania, School of Veterinary Medicine in 2009. Nancy has done an externship at our hospital to gain experience in small animal practice between her sophomore and junior year at U of P. She enjoyed her experience so much she returned to us in August 2009. She and her husband have expanded their family in the last year. She is enjoying motherhood, and still has time to practice veterinary medicine.

  • Dr.
    Megan Emma

    Dr. Megan Emma is a lifelong resident of Mercer County. She is a graduate of Tufts Cummings School of Veterinary Medicine with a degree in Doctor of Veterinary Medicine. Megan’s interests are in medicine and behavioral issues in small animals. Dr. Emma joined our staff in May 2012 as a new graduate. She also became a newlywed this October. She loves to read in her spare time and travel when she gets a chance.

Locate Us

Find us on a map


Hear From Happy Pet Owners

  • "" Hi everyone...We just wanted to thank everyone at HVH for helping us get thru such a difficult time letting Rok go to the Rainbow Bridge. We will never forget you guys as you made the journey of these 15 years smooth and easy not only for us but for our good old boy.... To Dr. Moon, your professionalism and caring manner in helping us get ROK thru this is to be commended. We couldn't have done it without you. Thanks and God Bless. The Gliem family and of course Rok!!! On 7/21/12 I unfortunately had to let my best friend, Niki, go. This was the 1st time I ever had to make such a hard decision but the staff at HamiltonVet were so compassionate and caring & they made what was a horrible day more comforting to me and my family. The staff was very friendly and sincere in their condolences. I thank you all from the bottom of my heart. XOXO""
    Stephanie W. / Trenton, NJ

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