CMS 855A Revalidation — Don't Lose Your Medicare Billing Privileges
CMS deactivates billing privileges for missed revalidations. 60-day reactivation window after deactivation — then start over.
Medicare requires institutional providers (Part A: home health, hospice, hospitals, SNFs, DME) to revalidate enrollment every 5 years. Notice arrives 2–3 months before due date through PECOS.
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