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For Providers

Thank you for choosing Outpatient Infusion Services for your patients’ treatment needs. The resources below will help you plan your patient’s care.

Please contact us with any questions:

  • Phone: (360) 493-5777
  • Fax: (360) 493-7573

For Your Patient

Please provide this welcome packet to your patient when you refer them to OIS.

Directions & Parking

Get driving directions and download a map, visitor parking map, and department directory.