What is a micro hospital?
A micro hospital is a small, fully licensed hospital, often about the size of a large pharmacy, with a 24/7 emergency department, imaging, lab and a small number of inpatient and observation beds. Patients who need a short stay can often remain in the same building instead of being transferred.
For a full guide to micro hospitals, how they differ from freestanding ERs, and how to find one near you, visit MicroHospitalGuide.com.
Common questions
Is a micro hospital a real hospital?
Yes. A micro hospital is a licensed hospital with a 24/7 emergency room and a small number of inpatient beds. It can admit you for a short stay and transfers patients who need complex care.
Can I be placed in observation at a micro hospital?
Yes. Observation rules are the same as at any hospital, so the same questions about your status, your bill and Medicare apply.
How is a micro hospital different from a freestanding ER?
A freestanding ER treats emergencies but has no inpatient beds. If you need to stay, you are transferred to a hospital. A micro hospital can keep you.
How do I find one near me?
Use my free micro hospital finder by ZIP code. Call ahead to confirm hours and your insurance.
Written and medically reviewed by Harvey Castro, MD, MBA, board-certified emergency physician. Last reviewed October 25, 2026.