Provider Enrollment
Questions? Call:
1-800-562-3022, ext. 16137
or use our contact form
Mail or Fax all enrollment documentation to:
Provider Enrollment
PO Box 45562
Olympia, WA 98504-5562
Fax:  360-725-2144
Join the Medicaid e-mail list for providers. It's free, fast, and informative!

Before you get started: 

Who can become a Washington State Medicaid Provider?

Provider specific required documents

Training (manuals, E-learnings)

Become a New Provider: Step by step instructions