New Patients $45 first Exam with Dr. Martin!

*$20 Off Your Pet’s First Exam*

Same Day Appointments Available

  • 537 Great Rd, Littleton, MA 01460
  • Monday: 8 AM–7 PM
    Tuesday: 8 AM–7 PM
    Wednesday: 8 AM–5 PM
    Thursday: 8 AM–7 PM
    Friday: 8 AM–5 PM
    Saturday: 8:30 AM–12 PM
    Sunday: Closed

New Larger Location at 537 Great Road!

SAME-DAY & NEXT-DAY APPOINTMENTS AVAILABLE!

PROMPT, COMPASSIONATE CARE!

Same Day Appointments Available

  • 537 Great Rd, Littleton, MA 01460
  • Monday: 8 AM–7 PM
    Tuesday: 8 AM–7 PM
    Wednesday: 8 AM–5 PM
    Thursday: 8 AM–7 PM
    Friday: 8 AM–5 PM
    Saturday: 8:30 AM–12 PM
    Sunday: Closed

New Larger Location at 537 Great Road!

Swift and Skilled Veterinary Care

If you have an emergency during our regular business hours and are bringing your pet in for treatment, please call our office in advance to ensure that a veterinarian is on site and ready to evaluate and treat your pet immediately.

There may also be situations where it’s best to take your pet directly to an emergency facility; calling ahead allows us to guide you appropriately.

Our emergency vet team is trusted by pet owners for urgent Dog and Cat care. As a leading animal hospital, we combine skilled veterinarians with compassion to guide every pet’s recovery.

Prompt Care When Your Pet Needs It

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Diagnostics + Testing

We offer in-house testing and partner with a trusted lab for advanced diagnostics.

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Surgery

Scheduled surgeries with a skilled veterinarian on-site

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Treatment + Hospitalization

We provide same-day care to get your pet on the road to recovery. If overnight care is required, we will work with you to ensure a smooth transfer to a 24-hour facility for continued treatment.

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X-rays

Performed on site to immediately diagnose fractures, stones, foreign ingestions, and more.

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End-of-life care

Gentle, compassionate care during the most difficult time.

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Same-day Care

For injuries or illnesses that simply cannot wait

Our hospital provides urgent treatment under one roof, from surgery to X-rays. Pet parents also rely on us for diagnostics, advanced procedures, and preventive services for Dogs and Cats

Prompt Care When Your Pet Needs It

Same-Day Care

For injuries or illnesses that simply cannot wait.

X-rays

Performed on site to immediately diagnose fractures, stones, foreign ingestions, and more.

Diagnostics + Testing

Done right in our hospital for less wait time and fast results.

X-rays

Performed on site to immediately diagnose fractures, stones, foreign ingestions, and more.

Same-Day Care

For injuries or illnesses that simply cannot wait.

X-rays

Performed on site to immediately diagnose fractures, stones, foreign ingestions, and more.

Surgery

Scheduled surgeries with a skilled veterinarian on-site

End-of-life care

Gentle, compassionate care during the most difficult time.

Treatment + Hospitalization

We provide immediate care to get your pet on the road to recovery. If overnight care is required, we will work with you to ensure a smooth transfer to a 24-hour facility for continued treatment.

SAME-DAY & NEXT-DAY APPOINTMENTS AVAILABLE!

A Team That Truly Cares

We’re here for every stage of your pet’s life. From their very first visit to their golden years, our team is committed to being a trusted partner in their health and well-being. 
Our veterinarians deliver compassionate animal care while focusing on emergency readiness. Families trust our clinic to provide advanced treatment for every pet.

Dr. Kathy Mockler

(VMD, Co-Owner & Medical Director)

Dr. Felise Roe

(DVM & Co-Owner)

Dr. Delaney Martin

(DVM)

Dr. Kathy Mockler

(VMD, Co-Owner & Medical Director)

Dr. Felise Roe

(DVM & Co-Owner)

Dr. Delaney Martin

(DVM)

What Our Pet Parents Are Saying

Discover their experience with our compassionate team, ready to meet your pet's needs during office hours.

"I love Middlesex veterinary center! I own three dogs and a cat, and they've always provided amazing care and respected my input. Unlike most vets, they don't immediately suggest the most expensive option. The staff is friendly, making my pets feel welcomed and loved. After years of taking my pets there, I trust their knowledge and am extremely happy with their care "

- Becky W

Google

"What a dedicated and caring staff! Everyone from the front desk staff, vet techs, and Dr. Mockler took excellent care of our dog in an emergency situation. We all felt immediately more at ease and couldn’t be more grateful for their expertise and willingness to help in a crisis. Thank you!"

- Jackie B

Google

"Amazing staff super understanding get with aggressive dogs would highly recommend recommend. Talk about all options for your animal explained everything step by step. Pricing was great"

- Diana H

Google

"When I called to say my dog had vomited and had loose feces, I got an immediate appointment. Everyone very sweet to Karma despite the fact she was barking her head off. The doctor asked my opinion about giving her a shot, but I demurred. She was given some medicine with instructions and I received a call the next morning. She seems fine now and I am thrilled that her problem was taken seriously."

- Marla R

Google

"Dr. Mockler is a very pleasant and patient veterinarian, with lots of knowledge. She always takes time to answer all of our questions without rushing us. I would highly recommend her to anyone who is looking for a veterinarian.!"

- Karen F

Google

Priority Pet Care in

Littleton, MA

New Larger Location at 537 Great Road!

Compassionate Pet Care for Dogs and Cats.

Emergency Vet In Littleton, MA