What a medical power of attorney does and how to set one up

A medical power of attorney is a legal document that names someone to make healthcare decisions for you if you cannot make them yourself. Unlike a general power of attorney, which covers financial and legal matters, a medical power of attorney applies only to medical choices—whether to accept or refuse treatment, which hospital to use, what medications to try, and end-of-life decisions.

To create one, you write a document naming your agent (called a healthcare proxy, healthcare representative, or surrogate, depending on your state), sign it in front of witnesses or a notary public, and file it with your doctor and hospital. The document takes effect only if you become unable to communicate your wishes—it does not give your agent power while you are conscious and able to decide.

The process is straightforward and costs nothing if you use your state's standard form. You do not need a lawyer, though some people choose to have one review the document for peace of mind.

Key Takeaways

  • Your state provides a free standard form for medical power of attorney; search "[your state] healthcare proxy form" or "[your state] medical power of attorney form" to find it.
  • You must sign the document in front of two witnesses or a notary public, depending on your state's rules—signing alone is not enough.
  • Give copies to your doctor, your hospital, your agent, and keep one at home where family members can find it quickly.
  • Your agent should be someone you trust completely and who understands your values about medical care, not necessarily a family member.
  • You can change or cancel the document at any time while you are able to make decisions, and you should review it every few years.

Finding and completing your state's standard form

Every state has its own medical power of attorney form, and using your state's official version is the easiest path. The form is free and designed to meet your state's legal requirements. Search "[your state name] healthcare proxy form" or "[your state name] advance directive form"—many states bundle medical power of attorney with other advance planning documents.

Your state's Secretary of State office, Attorney General office, or health department website will have the form. You can also find it through the National Hospice and Palliative Care Organization's state-by-state directory or through your hospital's patient advocate office, which often keeps copies on hand.

The form asks you to name your agent, describe any limits on their power (for example, you might say they cannot refuse life support), and sometimes asks about your wishes regarding organ donation or autopsy. Read through the entire form before signing—some states require you to initial certain sections to show you have read them.

Choosing someone to be your agent

Your agent should be someone you trust completely, someone who knows you well enough to guess what you would want if you could not say. This is often a spouse, adult child, or close friend, but it does not have to be a family member. What matters is that they will listen to your values and advocate for them, not what they think is best.

Before you name them, talk to them. Tell them you are naming them as your agent, explain what that means, and discuss your wishes about medical care. If they are uncomfortable with the role or unlikely to follow your preferences, choose someone else. You can also name an alternate agent in case your first choice is unavailable.

Avoid naming someone who lives far away or who you see rarely, unless they are the only person you trust. Your agent may need to be present at the hospital quickly and to make decisions on short notice. If you live alone or have no close family, a trusted friend, clergy member, or counselor can serve as your agent.

Signing and witnessing requirements

Your state requires you to sign the form in front of witnesses or a notary public—signing it alone and putting it in a drawer does not make it legal. Most states require two witnesses, though a few accept one witness plus a notary. The witnesses must be adults and, in most states, cannot be your agent, your doctor, or a hospital employee.

Some states say witnesses cannot be related to you by blood or marriage. Check your state's form for the exact rules. If you use a notary instead of witnesses, the notary will watch you sign and add their seal and signature. Notaries are available at banks, law offices, and some libraries, usually for a small fee or free.

Sign the document in front of the witnesses or notary—do not sign it beforehand and then show it to them. The witnesses or notary must see you sign with their own eyes. After you sign, the witnesses sign and print their names and addresses, or the notary completes their section.

Where to file and store your medical power of attorney

Give the original signed document to your doctor and ask them to place it in your medical file. Give a copy to your hospital's patient advocate or admissions office. Give a copy to your agent and ask them to keep it somewhere accessible. Keep a copy at home in a place where family members know to look—a desk drawer, a file labeled "Important Documents," or a safe.

Some people register their medical power of attorney with their state's registry, which allows hospitals to look it up if you arrive unconscious and your family cannot find the document. Not all states have a registry, and registration is optional. If your state offers one, you can register online or by mail; search "[your state name] advance directive registry."

Do not lock the document in a safe deposit box at a bank. If you become unable to make decisions, your family may not be able to access the box quickly enough, and the document will be useless when they need it most.

Limits you can set on your agent's power

You can restrict what your agent can decide. For example, you might say they can refuse life support but cannot refuse antibiotics, or they can make decisions about surgery but not about psychiatric medication. Write these limits clearly on the form or in a separate letter attached to it.

Some people use the form to state their wishes about specific situations: "I do not want to be kept alive on a breathing machine if I have no chance of recovery" or "I want all possible treatment even if I am unlikely to survive." These statements guide your agent and make their job easier by showing what you value.

You can also say that your agent must consult with your doctor, your family, or a religious advisor before making certain decisions. The more specific you are, the clearer your agent's role becomes.

When your medical power of attorney takes effect and how to change it

Your medical power of attorney takes effect only when your doctor determines that you cannot make or communicate medical decisions. Until that moment, you remain in charge of your own care. If you are conscious and able to speak, your wishes override your agent's, even if the document is in effect.

You can change or cancel the document at any time while you are able to make decisions. To change it, create a new document and follow the same signing and witnessing process. To cancel it, write a letter saying you revoke it, sign it in front of witnesses or a notary, and give copies to your doctor, your agent, and your hospital. Destroy the old document or mark it "revoked."

Review your medical power of attorney every few years, especially if your agent moves away, your relationship with them changes, or your wishes about medical care shift. If nothing has changed, you do not need to do anything—the document remains valid.

Frequently Asked Questions

Do I need a lawyer to create a medical power of attorney?

No. Your state's standard form is free and designed for people to complete without legal help. A lawyer can review it if you want extra confidence, but most people do not need one. If your situation is complicated—for example, you have a rare medical condition or complex family relationships—a lawyer can help you write a more detailed document.

What happens if I do not have a medical power of attorney and I become unable to decide?

Your state has a legal order of succession that says who can make decisions for you: usually your spouse, then adult children, then parents, then siblings. This process can be slow and may lead to conflict if family members disagree. A medical power of attorney lets you choose who decides and avoid that uncertainty.

Can my agent be paid for making decisions?

Your agent is not paid by law, but you can agree to pay them for their time and effort if you wish. Most agents are family members or close friends who do not expect payment. If your agent is a professional, such as a lawyer or social worker, you can arrange compensation in advance.

What if my agent and my doctor disagree about my care?

Your agent's decision is binding unless the doctor believes the decision is illegal or unethical. If a serious disagreement arises, the hospital's ethics committee may review the situation. This is rare. Talking to your agent about your values before the document takes effect usually prevents conflict.

Can I name more than one person as my agent?

Most states allow you to name co-agents, but it can create problems if they disagree. It is usually better to name one agent and one or two alternates who take over if the first agent cannot serve. If you do name co-agents, make clear whether they must agree or whether one can decide alone.