Confirm the exact product or service National contact — confirm product and location
Mailing address
Not researched for this route
1-877-4DS-PROD. Published for healthcare providers and patients with questions or concerns about Daiichi Sankyo products, and for reporting adverse reactions. Not an access/reimbursement hub.
Confirm the exact product or service National contact — confirm product and location
Mailing address
Not researched for this route
1-833-ENHERTU. ENHERTU (fam-trastuzumab deruxtecan) only, co-commercialized with AstraZeneca. Benefits verification, prior-authorization support and coverage-delay help. Fax the completed patient enrollment form (pages 1 and 3 signed).
Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.
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Call preparation · editorial guide
Make the call count.
Find the team that supports your practice. Match the plan and state before using a general provider line.
Have ready in your secure workspace
Practice NPI and tax ID, kept in your secure workspace
Exact product name and member ID card
A one-sentence request and your office callback number
Questions to resolve
Does this team handle this plan and state?
Which department owns the next step?
What reference number should the office keep?
This is a general administrative checklist, not payer policy or advice about a particular patient. Confirm the current plan instructions.
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