Alton Main Animal Hospital
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Alton Main Animal Hospital
Since 1986, Santa Ana, California area has known Alton Main Animal Hospital as the place for dedicated care for the other family memeber. We try to approach every case with every patient as if that patient were our own pet. We also believe that prevention of disease is far better than treatment of a disease that could have been prevented.

Therefore, we emphasize puppy and kitten care programs, annual exams, wellness blood profiles, and appropriately scheduled vaccines and parasite control. We have a well-equipped surgery suite for general, orthopedic, and cosmetic procedures, with emphasis on pain prevention and control. We offer reasonably priced spays and neuters that include multi-system anesthetic monitoring, absorbable sutures, and post operative pain management.
Services
We stress the importance of annual wellness exams for your pet(s) now that some vaccination protocols have changed. Pets cannot tell us how they feel, so by performing their annual physical exam we can check their eyes, skin, teeth, ears, respiratory and skeletal neural systems, lymph nodes, and mucous membranes to ensure they are healthy.
Reviews (21)
Zzul Ma
Zzul Ma
Dec 13, 2021
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Good service if you need to neuter a cat it has to have the vaccinations up to date they have a kitty package with vaccinations for 420
Jade K.
Jade K.
Dec 05, 2021
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I can't say enough great things about this place.
Dr Shim is another level of knowledgeable doctor.
I've been to this place since 2019, before that I had been to quite a lot vet but never had single satisfied experience.
My fur baby is really sensitive to anesthesia and always having a trouble waking up from anesthesia.
My baby is turning 13 yrs old and it was time to get dental cleaning and I was hesitant to get it because I was so worried if my baby will not wake up from anesthesia . I explained Dr Shim about this and he went over all the test and was confident that my baby will
Marco Soffientini
Marco Soffientini
Sep 25, 2021
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This vet saved my dog twice and his prices are more affordable respect other places
Evan Ruiz
Evan Ruiz
Sep 01, 2021
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Assistants very nice and helpful, vet was on time and exam recommendations were well explained. Will be waiting for test results in 1 to 2 days.
Brenda R.
Brenda R.
Aug 25, 2021
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Dr. Shim has performed a 4.3 LB fat lump removal surgery to my 11 yr old dog, after trying many attempts with her regular vet. Dr. Shim, provided through information about the process of the surgery giving me the confidence and trust to proceed with this decision. The staff was very attentive, kind and caring when asking questions. NOW my dog is free from carrying such as enormous lump on her neck. Our family will forever be thankful for enhancing the life quality of my dog
"Incredibly Professional Operation"
William B.
William B.
Aug 23, 2021
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Nothing but amazing things to say about this place. Dogs love them. Staff are excellent. Prices are very reasonable. Highly recommend
Luis E.
Luis E.
Aug 21, 2021
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Since we moved to Tustin we have been looking for a good and caring vet. Dr Shim and his team have all the qualities we have been looking for. Dr. Shim has given us great advise and shown to care for what the type of medication and food they recommend. Our cats ‍ are in great hands and we don't doubt on recommending the Alton main animal hospital to all our friends and family.
Bella S.
Bella S.
Jul 30, 2021
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Dr. Shim is an amazing vet. It's very upsetting how other people make awful reviews about him and the clinic. Some people don't understand that he is the only doctor in the hospital. Everything right now is by appointment which is very understandable due to Covid. If your pet is having an emergency you would have to take them to an emergency hospital. You wouldn't take your child to a clinic when they have any broken bones. It's common sense. There are 100s of other clinics to take your pet if they're sick if they don't have appointments sooner. Thank you Dr. Shim
Cristina I.
Cristina I.
Jul 29, 2021
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Great experience.
They got me super quick .
Roxy my dog seem very good and relaxed when I got her from her appt
Teeth were nice a clean
Prices were good


The office is a bit old but doesn't look dirty .
Giliw Sapiandante
Giliw Sapiandante
Jul 25, 2021
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Professional people , our dog is having surgery, reasonable cost too thank you Dr Efren you are the best
Debbie Madrid
Debbie Madrid
Jun 21, 2021
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The veterinarians here care about your pets. We go here to get my pets vaccinations and if they are sick. The prices are not high. I can count on them to take care of my pet
Liz Sanchez
Liz Sanchez
May 29, 2021
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The Dr. Is amazing, he is very effective, nice, and shows that he truly loves and cares for your pet. I always take my dog with this vet. My chihuahua is 3lbs and 7 years old, she had tumors on her belly and the Dr. put her down for surgery and thankfully everything went amazing. Their staff members are very nice and efficient.
Katie C.
Katie C.
May 02, 2021
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My dog have a cancerous tumor, and I've been looking for the Vet to have surgery since I am
not happy with my vet. Visit to the Alton Main Animal Hospital today for surgery was awesome.
I was very satisfied with the result. really like Dr.Sim and his staff. Dr.Sim is very kind, friendly and helpful. I look forward to returning again in the future. Highly recommend this veterinary clinic!
Kelly Clark
Kelly Clark
Apr 01, 2021
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Doctor Shim and his staff are great! I trust them and have brought hundreds of dogs and cats here from rescue as well as my own beloved pets. I drive all the way from North OC because they’re that good.
Michelle J.
Michelle J.
Jan 31, 2021
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Dr. shim is really friendly and nice. also takes care of my puppy really well.
my dog has bald spots, It was getting bigger and bigger.
So I searched animal hospital and found Alton main animal hospital.
It had nice reviews, I got appointment right away.
But appointment was 3 weeks later. I think because it was my first visiting.
When we arrived, We were waiting outside because of covid.
when we were waiting, he went out and checked our dog.
I even didn't know he is a doctor, cuz I didn't expect he came out for us in person.
It was touching for me. and I felt he really cares and loves
Shan N.
Shan N.
Nov 07, 2020
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My 2 year old Lab swallowed a ball and had to have it surgically removed. They wound up finding 2 balls in his stomach during surgery and a rubber band. Dr. Shim and the staff at Alton Main Animal Hospital were phenomenal! They were friendly, professional and reassuring. This is a top notch Animal Hospital with reasonable prices. I would highly recommend bringing your fur baby here for any healthcare needs. I will definitely be returning.
James P.
James P.
Nov 03, 2020
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UPDATE:
This morning, Dr. Shim called me and we had a good discussion. Per that discussion I have decided to moderate my position.
Katie C.
Katie C.
Sep 21, 2020
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I took my dog to Alton Main Animal Hospital to get my dogs' teeth cleaned with Anesthesia and a removal of a mass in his gums. I was very nervous since he had never been put under but everyone at this hospital made me feel extremely comfortable with their kindness and professional demeanor, especially the Doctor. The office was simple and clean and although it was our first visit my dog was calm in the new environment.

The procedure went great. Two days later my dogs' teeth look great and he is in good spirits. We couldn't be happier with the procedure and with this office
Melody A.
Melody A.
Jul 25, 2020
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Dr. Shim is incredibly kind and patient, and he explains everything to you which I greatly appreciate in a doctor. I had visited Dr. Shim twice: the first time was for my l Bichon Frise who had bloody stools and needed to be on a special diet, and another time for my nephew (my sister and brother-in-law's Siberian Husky).
I had gone to another vet twice regarding my Bichon's bloody stools, and both times he didn't resolve my small dog's stool issues. Then I searched for another Vet, which is when I saw all the great reviews about Dr. Shim-which all hold true. He put my dog
Juan Ruiz
Juan Ruiz
Jun 03, 2018
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They are very professional. The doctor is very nice person. The service is perfect, Prices are awesome I love the places
Valerie Pobog
Valerie Pobog
Sep 26, 2016
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I will always use this veterinarian service. They are kind and very considerate! Love Dr. Shim.