Does Medicare Part A or Part B pay for an emergency room visit, and does it change if I am admitted?

Question

Jeremy Harkins · Accepted Answer

An emergency room visit is generally covered under Medicare Part B because the ER is considered outpatient care.

If the hospital formally admits you as an inpatient, Medicare Part A generally covers the inpatient hospital stay from that point forward. Medicare Part B still covers the doctors and other professional services you receive while you are in the hospital.

There is an important distinction here: being kept overnight does not automatically mean you were admitted. You can spend one or more nights in the hospital under observation status and still be considered an outpatient for Medicare purposes. Part A generally does not begin covering the hospital stay until you are formally admitted as an inpatient with a doctor's order.

If you are admitted to the same hospital for a related condition within three days of the emergency room visit, Medicare generally treats the related ER services as part of the inpatient stay, so you do not pay the separate emergency department copayments.

So the simple answer is: ER first = usually Part B. Formal inpatient admission = Part A for the hospital stay, while Part B continues to cover the doctors.

Ann Sanfelippo · Answer

Medicare Part B generally covers an emergency room visit when you’re treated and released without being admitted as an inpatient. If the hospital formally admits you as an inpatient, Part A generally covers the inpatient hospital stay, while Part B may still cover physician services you receive during the hospitalization. Being kept overnight does not necessarily mean you’ve been admitted—you could be under observation status, which is usually covered under Part B. Always ask the hospital whether you have been formally admitted as an inpatient or are being treated as an outpatient under observation.

Answered by Ann Sanfelippo on September 29, 2026

Broker Licensed in FL, AL, AZ & 14 other states

Answered by Ann Sanfelippo Medicare Insurance Agent

Tony Sanso · Answer

I am assuming you are on Original Medicare. It changes based on if you are admitted. If you go to ER and are not admitted. Part B pays and you pay deductible $257 and 20% coinsurance.
If you are admitted you pay the $1676 and $0 for days 1-60. If you have a Plan G or Plan N will help offset the costs of the deductibles and coinsurance.

Wade Shiu · Answer

The emergency room visit itself is handled by Part B.   If, after the ER visit they admit you, it changes to Part A.

Does Medicare Part A or Part B pay for an emergency room visit, and does it change if I am admitted?

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Does Medicare Part A or Part B pay for an emergency room visit, and does it change if I am admitted?

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