Columbia Equine Hospital 27841 SE Orient Drive Gresham, Oregon 97080 Phone: (503) 663-1515 Fax: (503) 663-5521 Hours of Operation: Mon - Fri 8:00 am - 5:00 pm Saturday 8:00 am - 12:00 pm After Hours Emergency Service (503) 663-1515 Email Address  Full Name  Please respond with any comments or questions.