Patient Login Chris 2018-09-11T23:54:23-05:00. MyHealth Username Forgot Username? Password Forgot Password? MyChart ® Epic Systems Corporation. White Salmon (509) 493-2133 65371 Highway 14 White Salmon, WA 98672 Hours. Stevenson (509) 427-4212 875 Rock Creek Drive SW Stevenson, WA 98648.