Credit Card Payment by phone – call us at 360-413-8250 or 360-413-8921.
Mail us a payment:
For all professional (provider) services:
Gastroenterology Associates
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
Online Bill Pay:
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