Credit Card Payment by phone – dial 1-855-543-6294.
Mail us a payment:
For all professional (provider) services:
Gastroenterology Associates now Gastro Health
PO Box 11970
Olympia, WA 98508-1970
For Gastroenterology Associates Endoscopy Center facility charges:
Gastroenterology Associates Endoscopy Center
PO Box 13019
Olympia, WA 98508-3019