This is unpublished Samantha Atchison PA-C Contact Info Faculty Pinned Academic Teaching Associate, Medicine Sites of Practice UW Medical Center - Montlake CONTACTS Mailing Address: University of Washington Medical Center, 1959 NE Pacific Street, Box 356422, Seattle, WA 98195-6422 Non-Clinical Administrative Contact:Summer Staley Clinical Contacts: For appointments or other clinical matters, please contact theĀ Heart Institute.