How-to Guide

Healthcare Power of Attorney, Explained Simply

Three legal terms get used interchangeably that shouldn’t be. Here’s what each one actually covers.

Not legal advice: Requirements vary by state or country. This guide explains general concepts — consult an attorney to actually set one up.

What a healthcare power of attorney actually is

A healthcare power of attorney (POA) is a legal document naming someone to make medical decisions on your behalf if you become unable to make them yourself. It only activates in that specific circumstance — it doesn’t hand over decision-making while you’re capable of making your own choices.

POA vs advance directive vs healthcare proxy

  • Healthcare POA: names a person to decide for you
  • Advance directive / living will: states your own wishes in advance (e.g., about life support), so no one has to guess
  • Healthcare proxy: another term for the person named in a POA, used interchangeably in some states

Many people benefit from having both a POA and an advance directive — one names who decides, the other guides how they should decide.

When a family should consider setting one up

Common triggers: a parent entering their 70s or 80s, a serious diagnosis, a major upcoming surgery, or simply wanting the paperwork settled before it’s urgently needed. Doing it while everyone is calm and capable produces a far better document than doing it during a crisis.

Keeping the document accessible when it matters

A POA that no one can find in an emergency doesn’t help. Once it’s signed, photograph it into the relevant family member’s MedKeep document vault, encrypted and accessible from your phone — and make sure the named decision-maker knows where to find it too.

Frequently asked questions

What is the difference between a healthcare POA and an advance directive?

A healthcare power of attorney names a person to make decisions on your behalf. An advance directive states your own wishes in advance — many people have both.

When should you set up a healthcare power of attorney?

Common moments are a parent entering their 70s or 80s, a serious diagnosis, or before a major surgery — ideally before it’s urgently needed, while everyone can think clearly.

Where should you keep a signed healthcare POA document?

Somewhere accessible in an emergency. Photograph it into the relevant person’s MedKeep document vault, and make sure the named decision-maker also knows where to find it.

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Updated July 19, 2026 · 5 min read
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