HomeEast Valley Emergency Pet Clinic

Welcome to East Valley Emergency Pet Clinic

Your Emergency Veterinarian in Diamond Bar, CA
Call us at (800) Pet-ER20 or (909) 861-5737

Pet Emergency? Read no further and call us right away!


The East Valley Emergency Pet Clinic provides emergency services for injured and sick animals in the Diamond Bar area. We are here to help when your regular vet is closed.


Weeknights (Monday through Thursday)
6:00 PM to 8:00 AM

Friday 6:00 PM through Monday 8:00 AM

24 Hours 

No appointment necessary.

The remodel is finished!

We are excited to announce that we have doubled in size and we now can offer even better care for you and your pets. We invite you to come see the clinic during our business hours.

The purpose of our clinic is to provide the best medical and surgical service in a prompt and congenial manner and at an affordable cost to the client. This is done in collaboration with a client’s regular veterinarian. Records are provided to the client’s veterinarian each time one of his or hers patients is treated at the emergency clinic.

The clinic is open when other veterinary hospitals are normally closed, such as evenings, weekends and holidays. This ensures the highest standard of care for your pet. When your animal is released, your regular veterinarian and his or her staff will continue this care. Your pet is able to receive high quality care twenty-four hours a day, seven days a week.

We have a number of resources for you to learn about how to take better care of your pets. Browse around and look at our articles and pet videos. The best veterinary care for animals is ongoing nutrition and problem prevention. If you want to ask a question call (909) 861-5737 or email us and we'll promptly get back to you. Our Diamond Bar veterinarian office is very easy to get to, and you can find directions on our Contact Us page. You can also subscribe to our newsletter which is created especially for Diamond Bar pet owners. In between your veterinary visits, your pet will benefit from you reading these free informative articles.

At East Valley Emergency Pet Clinic, we treat your pets like the valued family members they are.

Dr. Megan LeFave
Diamond Bar Veterinarian | East Valley Emergency Pet Clinic | (909) 861-5737

938 North Diamond Bar Blvd
Diamond Bar, CA 91765


I've been here 3 times, the last visit was to have a pet euthanized.  I cannot say enough good about Dr. Megan LeFave.  She is an excellent vet and very compassionate.  They all care about animals and make aleviating pain a priority.  The last time I was in her staff was also very good.  Yes, they are expensive but so are vets and emergency medicine will always cost more.  They have to pay a staff that may be idle and keep equipment and pharmaceuticals that may rarely get used but are needed just in case.  I have sent friends there and they have been pleased also.  I wish people could get good care like this.

Barbara O. -
Chino Hills, CA

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