DialClerk Directory

Alexion OneSource

Patient billing and financial help

Find billing teams, financial-assistance programs and payment correspondence addresses. A bill-payment address is not a claims, records or specimen destination.

patient assistance

Alexion OneSource — patient-services and optional copay enrollment

Official page read
Phone888-765-4747Fax

800-420-5150

Published email

OneSource@Alexion.com

Patient enrollment page and requested insurance-card copies.

Published hours

Monday-Friday, 8:30 a.m.-8 p.m. Eastern

Product, plan and location

Confirm the exact product or service
National contact — confirm product and location

Mailing address
Alexion OneSource 100 College Street New Haven, CT 06510

Published patient-services mailing contact in the form header; enrollment instructions specifically direct email or fax, not patient payments.

The March 2025 patient form is linked by the five reviewed brand pages. It instructs email or fax of page 2 and insurance cards. Optional copay consent is subject to product-specific terms; the form is not a prescriber prescription or a REMS form.

View source ↗ · Source checked 2026-10-22 · alexion ultomiris ↗ · alexion soliris patient ↗ · alexion strensiq patient ↗ · alexion kanuma patient ↗ · alexion voydeya patient ↗

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Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

patient assistance

Alexion OneSource — KOSELUGO support enrollment

Official page read
Phone888-765-4747Published email

OneSource@alexion.com

KOSELUGO OneSource enrollment as explicitly published in the July 2026 access guide.

Published hours

Monday-Friday, 8:30 a.m.-8 p.m. Eastern

Product, plan and location

Confirm the exact product or service
National contact — confirm product and location

Mailing address

Not researched for this route

July 2026 access guide explicitly offers OneSource enrollment by phone or email and a KOSELUGO online form. The generic /koselugo/get-started URL returned 404; no fax from another product is assigned here.

View source ↗ · Source checked 2026-10-22 · alexion koselugo hcp ↗

Report an update
Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

patient assistance

Alexion OneSource — VOYDEYA copay and temporary access programs

Official page read
Phone888-765-4747Published hours

Not published in this record

Product, plan and location

Confirm the exact product or service
National contact — confirm product and location

Mailing address

Not researched for this route

May 2026 guide distinguishes commercial copay, a 30-day Free Trial and Free Limited Supply during qualifying coverage delays. Government-insured patients may be referred to independent resources; no foundation funding or approval is promised.

View source ↗ · Source checked 2026-10-22 · alexion voydeya hcp ↗ · alexion voydeya patient ↗

Report an update
Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

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Find billing teams, financial-assistance programs and payment correspondence addresses. A bill-payment address is not a claims, records or specimen destination.

Have ready in your secure workspace

  • Lab or provider bill and relevant insurance explanation, kept privately
  • Existing billing or assistance reference
  • Authorized representative information if required

Questions to resolve

  • Is this a bill, insurance explanation or assistance application?
  • Which department reviews the balance or assistance request?
  • What written confirmation will document the next step?

This is a general administrative checklist, not payer policy or advice about a particular patient. Confirm the current plan instructions.

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