The Trinity Pet Hospital provides veterinarian care and animal dentistry in Laguna Hills, CA. As a specialized internal medicine animal hospital, we provide a variety of vet services including animal surgery and vaccinations. We have a genuine love for the special animal members of all our families, and are committed to providing the most compassionate, highest quality, yet affordable veterinary services available. Visit us today in Laguna Hills or give us a call for more information.

Payment Options

  • American Express, Debit Cards, Discover, Financing Available, MasterCard, VISA

Contact Details

  Website
  Person Dr. Kerolos
  City Laguna Hills, CA
  Zip Code 92653
  Address 24861 Alicia Pkwy Ste D
  Phone Number (949) 232-1788

Business Representative

Dr. Kerolos

Veterinarian

Dr. Kerolos graduated from Assiut University, Egypt in 1993. He finished his internship in Alabama and moved back to California. His special interests are dermatology, small animal, internal medicine, soft tissue surgery, and eye surgery.

He has had a passion for pets since he was a child, watching his uncle treat pets and care for them as a veterinarian. He also enjoys saving pets in shelters and being involved with many rescue groups. His mission is to provide high quality medicine with compassion and integrity with affordable care.

Products & Services

Animal Surgery

Animal Surgery

The majority of pets will need pet surgery at some point in their lives, whether it is a routine spay or neuter operation or emergency animal surgery following an accident. As part of our Orange County pet hospital's broad spectrum of veterinary care procedures, we are proud to offer high-quality surgical care using the latest technology.


Animal Dentistry

Animal Dentistry

Regular dental maintenance and checkups can be as important for your pets as they are for you, and Trinity Pet Hospital is at your service. Our veterinarian offers a full scope of dental services for your pet, ranging from routine exams to more extensive procedures. One of the simplest ways to keep your pets' teeth and overall health in top form is to start with regular dental checkups, which we can schedule as a specific visit or include when your pet has an annual physical exam.


Pet Vaccinations

Pet Vaccinations

Wellness care is essential to your pet's continued well-being. Trinity Pet Hospital in Southern California understands this and offers a full range of veterinary vaccinations to keep your dog or cat healthy for years and years to come. Wellness pet care is not only good for your pet's health, but it saves you the time and money necessary to treat a major pet illness.

  • I would not recommend this business
  • No
  • Pour customer service

Definitely not recommend, very awkward experience with waiting an hour to see a vet that saw my animal for 3 minutes or less. I felt as if multiple medications were immediately pushed just to make money. Oh yeah and while i was in the waiting room, the two receptionist women were talking badly about other customers that were just there while I was in the room waiting. It was the most uncomfortable situation ever, and I contemplated leaving while I was waiting.

Value for moneyNop
Service & supportNop
QualityNop
LocationIts ok
Overall ratingFair

  • I would recommend this business

Very nice staff. They did a great Nail Trim. Because we made an appointment, the Dr. saw Raider quickly. We have been going here for over 5 years. Our daughter recommended this Vet and office.

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Overall ratingExcellent

  • I would recommend this business

Thank you for the care and thoughtfulness with my basset hound. It was a hard day for me to put her down and you were all so kind. The cremation box is so lovely.

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Overall ratingExcellent

  • I would recommend this business

I love this place and they are amazing with my puppy when she got spayed. i was very nervous but they walked me thru it

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Overall ratingExcellent

  • I would recommend this business

Everyone is so nice, friendly and helpful. And, it is reasonable which is so nice. My dog has to have surgery to remove a growth on his right thigh. It will be under anesthesia. The cost will be around $400.00 which is very reasonable and another $175.00 to have his teeth cleaned, again super reasonable. The vets and vet techs are so nice with all the dog. They do walk-ins during the day and so it can be very busy but with an appointment you get in right away. And I think it is nice they do walk ins for people who need their animal to be seen last minute. First office visits is no charge. Nail trims are $14.00 and can be done as a walk in. Just overall very happy. We feel welcome here, our dog feels safe and well cared for, and it is convenient. Love Trinity

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Overall ratingExcellent

  • I would recommend this business

Most compassionate staff ever! Dr K is so smart, professional and loves my dogs! Carin and Unesis are two of my favorite people EVER! Office is always very busy, but they will never turn a sick dog away!

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Overall ratingExcellent

  • I would recommend this business

I found out why so many people with dogs flock to this place. I brought one of my puppies for emergency and I was very impressed with the care and treatment we got from Dr. korrolos. Since then, I bring all my three dogs there and did not go back to our former Doctor. Dr. Korrolos is the reason why this place is so busy. Not only is he nice , He is also, a well experienced, knowledgeable and great doctor.

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Overall ratingExcellent

  • I would recommend this business

I took my little Chihuahua Peanut in with a broken paw, Dr. K took such good care of him for the 5 months he had to have his cast. The staff were so good with Peanut, Karin and Catherine are amazing. I highly recommend taking your animals to Trinity.

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Overall ratingExcellent

  • I would recommend this business

I discovered that Trinity helps an organization that rescues pups because I was fostering for the and would take the fosters for needed treatment. I switched to Trinity after about 5 years when my pup needed to be fixed so I could foster. After checking my then Vet's cost versus Trinity I decided Trinity is the one for me. Their staff are helpful and concerned about pet.
I recommend them to anyone who needs quality care for their pet.

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Overall ratingExcellent

Customer Testimonials

Absolutely the best vet my animals have ever had. He is such a kind and honest person. I have a rescue shihitzu with a lot of behavior issues. I was so surprised to see my dog let the Dr examine him and didn't try and bite him or even growl. This is so outta character for my dog. I know he felt the drs good energy. The staff is amazing as well. I highly recommend trinity pet hospital.


I have been using Trinity for about 4 years now. Their prices are reasonable and the staff is incredibly estute.
Dr K is a diagnostic genius and has saved me months of exploratory lab work and literally thousands of dollars by narrowing the possible culprits and tests in order of likelihood.
He is a kind, compassionate and very wise man. Don't go to Trinity if you haven't already... I want to keep them a secret!


Been taking my dog there for 5 years. Very busy office , be prepared to wait. But prices are great and Dr. K is amazing & very thorough and patient

Photo Book

Social Activity

This Sunday is National Pet Parents Day! Here are a few tips on how to properly care for your amazing pet. https://t.co/ea1Z9t8mYE
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This vet team worked together to help a Great Dane deliver a huge litter! https://t.co/ZJt1mvBYPx
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It's that time of the year again! If your pet is suffering from allergies, here's what you should do. https://t.co/5pEB43FRYs
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Say it ain't so! The seven-year dog myth we've known about for years is just that, a myth! https://t.co/CQwe1jpY5q
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Who needs a human when you have each other! https://t.co/sc1ISrQ9XC
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If your dog has been limping, let us help find the proper treatment for them. Book an appointment today: https://t.co/QM3wJrT484
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If your cat does any of these things, just know the love is real. https://t.co/gjtDoeeBjw
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That's right, brush those pearly whites! https://t.co/Qp8vYavsWZ
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From Our Website

As a cherished member of your family, your pet deserves quality veterinary care. When you bring your pet to Trinity Pet Hospital in Laguna Hills, you can rest assured he's in the best of hands. We offer a wide range of veterinary services to care for your dog or cat. Quality services combined with caring personnel make us your number one choice for veterinary care. Working with an experienced, compassionate vet will make a marked difference in your pet's care. With over 20 years of experience in the veterinary field, Dr. Kerolos, your Laguna Hills veterinarian, specializes in pet dermatology, soft tissue surgery, eye surgery, and internal medicine.


We care deeply about your pets. Top-notch patient care and great customer service are priorities at Trinity Pet Hospital, which has long served the Orange County communities of Irvine, Laguna Hills, Laguna Nigel, Mission Viejo and San Clemente. At Trinity, we create a friendly, welcoming environment for all. It is our purpose to offer the best, kindest, most helpful care for pets at affordable fees. Another one of our goals is to make education available to you about what is best for your pet's health.


Vaccinations are one of the most valuable gifts you can give your pet. Vaccinations are scientifically engineered products that help stimulate your pet's immune system to ensure it produces the right antibodies to ward off infectious diseases that would otherwise cause your pet to suffer from an extensive (and often expensive) sickness or even death. While all there are vaccinations available for all companion animals, our veterinary team mostly works with cat and dog owners and the requisite vaccinations that these two family pets need.


Pets, just like their human owners, experience fluctuations in their health during certain times of the year. Pain management, especially in older pets, can become a regular part of your veterinary health. Your dedicated Laguna Hills veterinarian is here to advise you on the ways to tell if your pet may be experiencing pain, and in such cases ways that you can help to relieve their pain and discomfort. Trinity Pet Hospital is dedicated to the health and well-being of our furry friends and understands that pets are part of the family.


One of the most worrisome aspects of owning a cat or a dog is the chance that your pet will become lost someday. This can easily happen when a crafty pet escapes from your home or wanders off during a family vacation. Microchipping is a simple procedure that can protect your pet and bring you peace of mind. Estimates suggest that more than 10 million U.S. cats and dogs are lost or stolen each year. Your pet has a one in three chance of becoming lost during its lifetime, our Laguna Hills veterinarian notes.


Regular dental care from Trinity Pet Hospital is key to your pet enjoying good oral health. Oral care plays an important role in your pet's overall health and wellness. Healthy teeth and gums can improve your pet's quality of life from babyhood through his senior years. At Trinity Pet Hospital, we encourage pet owners to bring their pup or kit in for annual dental exams. During a dental exam, your veterinarian in Laguna Hills can detect such problems as broken teeth, abscesses, periodontal disease, tartar buildup, cavities and more.


Going to the veterinarian's office can be scary for a cat or dog. While us humans understand that the veterinarian is there to help animals don't always see things the same way. For some cases, anesthesia may be administered so the veterinarian is able to perform an in-depth exam. If a cat or dog has a painful joint or bone it may be necessary to give the animal some anesthesia to allow the veterinarian to X-ray or manipulate the joint to find the problem. Anesthesia may also be necessary if your pet is undergoing surgery.