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Meet Our Doctors

Casillas Veterinary Hospitals employs experienced and caring doctors who are committed to providing the highest-quality service for your pets. 


  • Dr. Juan F. Casillas

    Dr. Casillas did his undergraduate work at Texas A&I and Texas A&M Universities, and received his Doctor of Veterinary Medicine from Tuskegee University. After graduating, he moved to California and opened Montebello Veterinary Hospital in 1971. During the course of his career, he has served on the Los Angeles Zoo Board and conducted a variety of educational programs to spread awareness about animal health. He is a member of the CVMA and the SCVMA, and a past president of the California Veterinary Board of Examiners.

    Primary Hospital: Montebello

  • Dr. Sergio Castilla

    Dr. Castilla studied veterinary medicine in Cuba before immigrating to the United States.  He has worked with Casillas Veterinary Hospitals for more than three decades.  Today he is the chief veterinarian at the East Los Angeles location, and specializes in the care of dogs and cats.

    Primary Hospital: Huntington Park

Locations

Find us on the map

Office Hours

Our Regular Schedule

Casillas Veterinary Hospitals

Monday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Tuesday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Wednesday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Thursday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Friday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Saturday:

9:00 am-5:00 pm

Sunday:

9:00 am-12:00 pm

1:00 pm-4:00 pm

East Los Angeles Dog and Cat Hospital

Monday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Tuesday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Wednesday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Thursday:

8:00 am-12:00 pm

Friday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Saturday:

9:00 am-12:00 pm

Sunday:

Closed

Lynwood Dog and Cat Hospital

Monday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Tuesday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Wednesday:

9:00 am-12:00 pm

Thursday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Friday:

8:00 am-12:00 pm

2:00 pm-5:30 pm

Saturday:

9:00 am-12:00 pm

Sunday:

Closed

Testimonials

Read What Our Clients Say

  • "Dr. Castillas & Staff,

    There are no words that can fully express the gratitude your kindness deserves. The attention P.J. & Plato have received from you all over the years is priceless and your dedication to always going out of your way means a lot to our family. Thank you!"
    The Morlett Family
  • "To Dr. Casillas & Staff,

    Thank you very much for all the years of great and thoughtful service from yourself and your helpful staff. I appreciate your generosity and kindness when treating my pets. This is why I always recommend everyone to your office because you guys are the best, thank you."
    Julia & Rose Sanchez