Service dates 1-1-18 thru 12-31-19: For billing, claims or payment plan questions contact WA Gastroenterology Billing Customer Service at 1-800-734-6855.
Service dates 1-1-20 and after: For billing or claims questions contact our Patients Services Specialists at 1-866-410-6056.
Service dates 1-1-20 and after: For payment plan or financial assistance application questions or help contact our Benefits Coordinators at 360-413-8921.