Gregory J Hallas, MD Primary Care Specialty: Internal Medicine Languages: English, Interpreters Available Gender: Male Education and Certification Medical School: Creighton University. Contact Information Practice Name: Vancouver Clinic Salmon Creek Care Locations Primary Address Legacy Salmon Creek Medical Center 2211 NE 139th Street Vancouver, WA, 98686 Phone: 360-487-1000 Secondary Address Vancouver Clinic Salmon Creek 2525 NE 139th St, Suite 230 Vancouver, WA, 98686 Phone: 360 882-2778 Fax: 360 397-3813 Clinic Hours: Weekdays