Aetna Adjustment Co., Inc. 1424 N Argonne Rd Spokane, WA 99212-2522 Aetna Adjustment Co., Inc. Aetna Adjustment Co., Inc. is an Washington collection agency. Washington collection agencies can help businesses, medical practices and facilities that are creditors to collect their accounts receivable. Debt collection help might include; collection demand letters, debt collector … [Read more...]