How to Contact Alta Mesa Animal Hospital and When They're Open

Alta Mesa Animal Hospital in Mesa, Arizona can be reached by phone at (480) 981-1244, by text at (602) 875-0597, or by fax at (480) 832-3908. Main hours are Monday through Friday, 8:00am to 6:00pm, and the clinic is closed Saturday and Sunday. It also closes daily for lunch from 12:30pm to 1:30pm, so calls and visits during that window won't be answered.

Contact Options

The phone line is the most direct route for booking or asking a question. Text is useful if you prefer not to call or want to send a message outside a quiet moment. Fax is available for records and paperwork rather than scheduling.

Hours of Operation

One detail that catches people out: the hospital is closed for lunch every day between 12:30pm and 1:30pm. If you're calling about a same-day concern, aim for the morning block or after 1:30pm.

Booking an Appointment

You can book either online through the site's Book Appointment option or by calling the hospital directly. The site also notes that Dr. Trepanier, DVM, has joined the team and provides care for pets including exotic pets — so if you're booking for something other than a dog or cat, mention that when you schedule.

For managing ongoing care, the hospital offers the PetOne Veterinary App, which the site describes as a simpler and more convenient way to handle your pet's health care. It can be downloaded from the site.

Services and Location Context

The hospital has operated since 1987 and describes itself as fully equipped for everything from an annual exam to a full diagnostic workup. Listed services include vaccinations, dental care, diet and nutrition, and spay and neuter surgery.

It serves dogs and cats in Mesa — including the Alta Mesa, Las Sendas, and Mountain Bridge neighborhoods — plus Apache Junction, Gilbert, Queen Creek, and surrounding communities.

What to Do Before You Call

• Have your pet's basic info ready: age, species, and the main concern.
• Decide whether you need a routine visit or something more urgent, since that affects how the front desk routes you.
• Avoid the 12:30pm–1:30pm lunch window if you need a live answer.
• If you're a new client or booking for an exotic pet, say so up front so the right veterinarian is assigned.

For anything time-sensitive, calling is faster than text or the online form.