Step 3 — Healthcare Proxy

Choosing the Person Who
Will Speak for You

If you lose the ability to make medical decisions for yourself, someone else will make them for you. The question is whether that person will be someone you chose — or a stranger assigned by law. This step is about making sure it is the right person, prepared for the role.
A healthcare proxy (also called a healthcare agent or durable power of attorney for healthcare) is the single most important legal designation in your advance care plan. More important than any specific medical instruction, because no directive can anticipate every scenario — but a well-chosen proxy can respond to all of them.
The Role
What Does a Healthcare Proxy Do?
Your healthcare proxy is authorized to make medical decisions on your behalf when you are unable to make them yourself. This includes decisions about treatments, procedures, surgeries, medications, and end-of-life care. The proxy does not act while you still have capacity — only when you cannot communicate your own wishes.
This is not the same as a financial power of attorney. A healthcare proxy has authority over medical decisions only. And unlike a general power of attorney, a durable power of attorney for healthcare remains in effect even after you lose capacity — which is precisely when you need it most.

Decision-Maker, Not Decision-Owner

Your proxy’s job is to make the decisions you would make if you could. They are not choosing for themselves — they are speaking for you, guided by your values, your wishes, and the reflections you documented in Step 2.

Activated Only When Needed

A proxy designation does not take effect while you can still speak for yourself. It activates only when a physician determines you lack the capacity to make or communicate medical decisions.

The Decision
Who Should You Choose?
This is not necessarily your spouse. It is not necessarily your eldest child. It is the person best suited to carry out your wishes under pressure — someone who can stand in a hospital corridor, absorb difficult information from a physician, and make a decision that honors who you are.

Willingness

Never assume someone is willing to serve. This is a serious emotional and practical responsibility. Ask directly, explain what it involves, and give them permission to say no.

Emotional Steadiness

Your proxy may need to authorize the withdrawal of life support or refuse a treatment that family members want. Choose someone who can make hard decisions without being paralyzed by grief or guilt.

Availability

Your proxy needs to be reachable. A sibling who lives overseas or a friend who travels constantly may not be the best choice, regardless of how well they know your wishes.

Advocacy

Hospitals can be intimidating. Your proxy must be willing to push back on physicians, ask hard questions, and insist that your wishes are honored — even when the medical team disagrees.

The Conversation
What to Discuss With Your Proxy
Naming a proxy on a form is not enough. If they have never heard your voice describe what matters to you, they are guessing — and guessing under pressure leads to regret. Sit down with your proxy and walk through the following:

Share Your Quality of Life Reflections

  • What does a good day look like for you?
  • What abilities and relationships matter most?
  • What are you most afraid of at the end of life?
  • When would medical treatment feel like too much?

Discuss Specific Scenarios

  • If you had advanced dementia and could no longer recognize family, would you want life-sustaining treatment?
  • If you were in a permanent coma with no chance of recovery, what would you want done?
  • If a treatment could extend your life by weeks but leave you in significant pain, would you want it?
  • Would you want to be kept alive by machines if there were no realistic hope of meaningful recovery?

Clarify the Boundaries of Their Authority

  • Are there any treatments you would never want, under any circumstances?
  • Are there any treatments you would always want, regardless of prognosis?
  • Do you want your proxy to consult with other family members, or do they have final say?
  • Is there anyone whose input you specifically do or do not want considered?
Making It Official
The Legal Requirements
A proxy designation must be documented in writing to be legally enforceable. Requirements vary by state, but the general elements are consistent across the U.S.:

A Written Document

Most states provide a standard healthcare proxy or durable power of attorney for healthcare form. You can also use the form in your state’s advance directive packet. It must be signed and dated.

Witnesses or Notarization

Most states require two adult witnesses who are not your proxy. Some states require notarization instead of or in addition to witnesses. Check your state’s specific requirements.

Distribution

Give copies to your proxy, your alternate proxy, your primary care physician, your hospital, and any family members who need to know. Keep the original in a safe but accessible place — not a safe deposit box.

Name an Alternate

Always designate an alternate proxy in case your primary proxy is unavailable, incapacitated, or unwilling to serve when the time comes. The same criteria apply.

Why This Matters

Without a designated healthcare proxy, the decision about who speaks for you falls to a statutory hierarchy defined by your state — typically spouse, then adult children, then parents, then siblings. That hierarchy does not account for estranged relationships, blended families, or the reality that the person who knows you best may not be a blood relative at all.

Worse, when no proxy is named and family members disagree, medical teams are left to make decisions by committee or by legal default. The result is often aggressive treatment that the patient would not have wanted — because doing more feels safer than doing less when no one has clear authority.

Choosing a proxy is an act of trust, clarity, and love. It is one of the most important things you can do for the people who care about you — because it relieves them of the unbearable weight of guessing.

Next Step: Your Advance Directive

With your proxy chosen and your values clarified, you are now ready to create the document that puts it all in writing — your advance directive. This is where your wishes become legally binding instructions.

Continue to Step 4 →
← Back to Step 2: Quality of Life Reflections
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