Thank you for your interest in contracting with the Developmental Disabilities Administration (DDA). Service providers are an integral part in Transforming Lives across Washington State!
If you are interested in becoming a contracted provider, please call your local DDA office and ask for the contracts department:
| Office Location | Phone Number |
|---|---|
| Everett | 425-740-6400 |
| Seattle | 206-568-5700 |
| Spokane | 509-329-2900 |
| Tacoma | 253-404-5500 |
| Tumwater | 360-725-4250 |
| Yakima | 509-225-7970 |