Directory information, not recipient confirmation. Fax numbers can change and differ by department, location, form, or plan. Confirm this destination directly with Express Scripts Canada before sending sensitive documents. FaxFlow is not affiliated with this organization.

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Express Scripts Canada fax number

(855) 844-4421

Provider Relations

Used for: Fax submissions related to provider communications to Express Scripts Canada, including provider registrations, claims-related correspondence, and remittance advice; used by providers to contact ESC regarding provider relations.

Fax destination details

Department
Provider Relations
Purpose
Fax submissions related to provider communications to Express Scripts Canada, including provider registrations, claims-related correspondence, and remittance advice; used by providers to contact ESC regarding provider relations.
Form
Provider Registration Declaration — Provider Registration Declaration
Address
Express Scripts Canada, Attention: Provider Relations, 10th Floor, 5770 Hurontario Street, Mississauga, ON L5R 3G5
Voice phone
1-800-563-3274

Before you send

  • Confirm that this exact department handles your document or request.
  • Check the organization website or call its main line for the current fax number.
  • Include a cover sheet and any case, member, claim, or form reference required.
  • Keep the delivery confirmation with your submission records.

Use the Provider Registration Declaration to notify ESC of changes to provider information; this and the Provider Agreement are part of joining or maintaining provider status.

Review official form instructions

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