Antonio Animal Hospital is proud to serve the Southern California area for everything feline and canine related. We are centrally located in the lovely foothills of Rancho Santa Margarita.  Our veterinary hospital is owned and operated by Dr. Norman Seat, a licensed veterinarian with more than 20 years experience.
Our team is committed to educating our clients on how to keep their pets healthy; not only with immediate medical concerns, but with preventive care, good nutrition, and exercise.  At Antonio Animal Hospital, we are equipped to handle any emergency should the need arise.  We wholeheartedly believe that every animal, and their humans, deserve to be treated with the upmost respect and loving care possible. Our motto here is "No one cares how much you know until they know how much you care."

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Client Reviews

"Dr. Seat is a great Vet. He really cares and takes time to explain his treatment plan and answers all your questions or concerns. The staff is also very helpful and friendly. This was our first puppy visit and we will continue to use them!"
~ Nichole V.

"Dr. Yamasaki is the most compassionate and realistic vet. She has really supported our dog and us as a family in our hardest time. Dr. Yamasaki answered our questions and did not rush us off the phone. She supported our decision to do at home care and spent more time researching our dogs diagnosis so that we were well informed. She always returns our calls and spends time answering our questions. She only saw our dog once and is treating her and our family as if we had been seeing her for years. We are constantly impressed by her knowledge, patience and compassion. Your animal will be in good hands.
~McKenzee M. 

"I've had Persians for more than 40 years and have never had a better, more caring and competent veterinary clinic to care for them!"
~ Tim C.

"The vet techs are amazing! They make you feel like they love your dog just as much as you do. Best place to take your pet!!!!!"
~ Debbie L.

We are so happy we chose Antonio Animal Hospital for our Golden retriever Sunny!
Staff is super friendly, professional and so accommodating of what you need resolved.
Sunny had teared his ACL and needed the surgery. Sunny had TTA surgery performed by Dr. Norman Seat, He was 10/10!! Gave us options for type of surgeries and answered all of our concerns and questions, honestly this probably was one of the best experience we had sitting down and talking to a Vet that actually cares about your pets. This definitely now will be Sunnys Primary Clinjc !
Vet Technician who took care of sunny also was so friendly and nice,they treated Sunny like their own, definitely amazed by the whole experience we had here.
~ Ella K.

"Wonderful staff and great service. Dr. Seat and his staff are the best!"
~ Lisa A.

I've been taking my cats here for years and my cats and I have always received excellent service! The whole staff is so kind, compassionate and caring which I truly appreciate! Thank you!"
~ Yvette B.

Thank you Dr. Laura Robinson! She recently helped our new rescue pup through several different health issues and spayed her. She did a wonderful job; the incision was beautiful and healed perfectly. She is also kind, compassionate, and trustworthy. I would recommend her to anyone!
~Kelly B.

Dr. Robinson and the staff at Antonio Animal Hospital are the absolute best!!  Whenever my dog Blue needs anything, I know where to go as they are extremely knowledgeable, friendly, and professional.  They always know what to do, and always go the extra step to keep my dog healthy and happy! 
​~Tomo K. 

Thank you Antonio Animal Hospital!

"I feel very welcomed when I come to your office. The receptionists are warm and friendly, and love how they woo and coo over my dogs. The vets are jovial, kind, interactive and explain everything very thoroughly. Antonio Animal Hosp. is top notch."
~ Nicki L.

"Dr. Seat has been providing excellent care and compassion for our pets (babies!) for many years. We love him! The staff at Antonio Animal Hospital is also consistently dedicated and understanding about my doggie's special needs."
~ Barbara S.

Took my pet in for heart-worm/parasite testing (4DX). Everyone in the office from the receptionists to the technicians work very well together and cohesively to get me in and out quickly. I travel a long way to make visits to Dr. Yamasaki and won't take my pet elsewhere. Visits are always full of care, positive, and efficient.
~Taian C.

"Dr. Seat and his staff always treat my dog and me with kindness and respect. They do a great job taking care of my dog. I never feel rushed. They listen to my concerns and answer all my questions. I couldn't ask for better service."
~ Anonymous


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"The staff was courteous and genuinely concerned. They treated my baby (pup) and I with the utmost sympathy and respect. I would recommend this facility to anyone who wants their pet to be treated in the best manner possible."
~ Ada R.

"I feel that Dr. Seat is the most caring and understanding Vet. I have ever met. Too bad he doesn't work on humans as I'd love to have him as my Primary Physician. His staff takes after him in being courteous and kind."
~ Anonymous

Dr. Robinson performed a regular teeth cleaning and one tooth extraction for our sweet 8 year old hound mix. Very professional, caring, and knowledgeable -  excellent qualities for a great Vet. Thank you"
~Cheryl M. 

"The doctors and staff are always so good to my dogs. I can tell they all truly love animals. The receptionists remember my dogs when I come in. I never feel pressured to add extra tests/procedures."
~ Debi A.