Alpen Veterinary Hospital in Mammoth Lakes is your solid option for regular vet care and emergency services if you’re traveling through the Eastern Sierra with your dog. The hospital handles appointments Monday through Thursday from 8:30 a.m. to 5:30 p.m., with Friday hours ending at noon, so plan accordingly if you’re in town during the week.

What matters most when you’re on the road with a dog is knowing there’s emergency coverage available. Alpen has a 24/7 on-call team, which is genuinely valuable in a mountain town where other options might be limited or far away. If your dog gets injured on a trail or something happens unexpectedly, their team can walk you through what to do over the phone before you head in. That guidance can make a real difference when you’re stressed and away from home.

The staff understands that visiting vets with your dog isn’t always straightforward—they’re set up to handle dogs coming through their doors, whether you’re a local or just passing through on a High Sierra trip. Their website at alpenvet.com has information and resources if you want to check on something before your visit or after hours.

If you’re planning to spend time hiking around Mammoth or exploring nearby areas like the Devil’s Postpile or the Lakes Basin, it’s worth knowing where this hospital is located. Emergencies with dogs happen—sometimes it’s something minor that doesn’t need urgent care, sometimes it’s serious. Being able to call ahead and talk to someone who can triage the situation means you’re not driving around panicked trying to figure out your next step. That’s the real value of a reliable emergency clinic in a smaller mountain community.