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Welcome to Alpen Veterinary Hospital
Your Veterinarian in Mammoth Lakes, CA
Call us at 760-934-2291

Pet Emergency? Call us right away at 760-934-2291!

Image of a dog wearing a stethoscope

If you live in Mammoth Lakes or the surrounding area and need a trusted veterinarian to care for your pets – look no further. Dr. Gaylon TeSlaa is a licensed CA veterinarian, treating all types of pets. Your pets’ health and wellbeing are very important to us, and we take every possible measure to give your animals the care they deserve.

We understand the special role your pet plays in your family and are dedicated to becoming your partner in your pet's health care. We treat your pet as we would our own. Our goal is to practice the highest quality medicine and surgery with compassion and an emphasis on client education. Our entire healthcare team is committed to providing personal attention to the unique concerns of each individual pet owner.

At this site, you will find information about our practice philosophy, our services, helpful forms to assist you and an extensive Pet Medical Library for you to search for additional pet health care information.

Thank you for taking the time to read about our veterinary practice and the services we offer. We welcome your comments and suggestions. Please contact us at (760)934-2291 for all your pet health care needs.

At Alpen Veterinary Hospital, we treat your pets like the valued family members they are.

Dr. Gaylon TeSlaa
Mammoth Lakes Veterinarian | Alpen Veterinary Hospital | 760-934-2291

217 Sierra Manor Rd.
Mammoth Lakes, CA 93546

New Clients Receive 15% OFF First Visit.

Sign-up using the form or call us at 760-934-2291 to take advantage of this exclusive offer.


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Office Hours

Our Regular Schedule

Alpen Veterinary Hospital


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-5:30 pm


8:30 am-12:00 pm




By Appt Only


Read What Our Clients Say

  • "Wow! Thanks to all the staff at Anderson Vet Clinic. I feel like you all truly love what you do! My kitty, Lola and I always have such a pleasant experience when we come in. Fortunately, it’s usually just for a check-up, but I would not leave Lola in anyone else’s hands but yours. Thank you for your caring commitment!"
    Maya Smith / Los Angeles, CA
  • "I have benefited tremendously from the care my pet received from Dr. Anderson."
    John Doe / San Diego, CA