Even in this time of uncertainty, Mayo Clinic is a place for hope and healing — and we're delivering the care you need. Mayo Clinic follows carefully designed, rigorously enforced safety precautions for anyone who needs face-to-face care. We're safely treating all patients, both in person and through virtual visits, in adherence with federal and state executive orders and guidance. Mayo Clinic is certified as a Primary Stroke Center by The Joint Commission. Mayo Clinic’s cerebrovascular team subspecializes in stroke and other complex cerebrovascular conditions including: vascular malformations, Moyamoya disease, intracranial aneurysms, carotid stenosis, vertebral artery stenosis, intracranial arterial stenosis, and patent foramen ovale (PFO).