Medical Attention Starts Here! If you’re hurt, in a hurry or simply looking for a convenient and affordable healthcare reso...urce, come see us at MASH Urgent Care. We’re open every day – even weekends and holidays. We’ll get you in and out fast and back to doing what’s important to you. With seven convenient locations in Amherst, Clarence/East Amherst, Ken-Ton, Lancaster, North...