People often hear "power of attorney" and assume it covers everything, including medical decisions. It usually does not. The comparison of a health care proxy vs. power of attorney comes down to one question: who do you want making decisions about your health, and who do you want managing your money? Those can be two different jobs, set up in two different documents. This guide explains how the documents differ, what hospitals and privacy law expect, what happens if you have neither, and how to put the right ones in place.

Quick answer
What is the difference between a health care proxy and a power of attorney?

A health care proxy (also called a health care power of attorney) names someone to make medical decisions for you when you cannot. A financial power of attorney names someone to handle money and property. A financial power of attorney usually does not give anyone authority over medical care, so most adults need both.

  • Health care proxy: medical decisions. Financial POA: money and property.
  • Terms vary by state: proxy, agent, surrogate, attorney-in-fact.
  • Hospitals ask whether you have an advance directive when you are admitted, so keep copies where your agent can find them.

The Difference in Plain English

Think of two separate jobs.

The health care job. Your health care proxy speaks for you if you cannot speak for yourself. They talk with doctors, understand your options, and make treatment choices that match your wishes. Different states use different names. New York and Massachusetts call the form a Health Care Proxy; other states use terms such as durable power of attorney for health care, health care agent, or advance health care directive. They describe the same basic role.

The money job. A financial power of attorney lets your agent pay bills, manage accounts, handle taxes, and deal with property. A durable version stays valid if you lose the ability to decide for yourself.

Federal law recognizes the health care version as part of the larger set of advance directives. The federal statute that sets those hospital duties defines an advance directive as a written instruction, such as a living will or durable power of attorney for health care, recognized under state law and relating to care when the person is incapacitated.

Health Care Proxy vs. Financial Power of Attorney: Side by Side

Health care proxy Financial power of attorney
What it covers Medical treatment, doctors, facilities, and care decisions Bank accounts, bills, taxes, property, benefits
Person named Health care agent or proxy Agent or attorney-in-fact
Usually takes effect When you cannot make or communicate your own decisions Immediately or on a trigger, depending on how it is written
Paired document Living will, which records treatment wishes Will and, sometimes, a living trust
Ends at Death (or when you revoke it) Death (or when you revoke it)

A living will states what treatment you want or do not want. A health care proxy covers situations the living will did not predict. Our living will guide explains how the two work together and lists each state's form.

What Hospitals and Privacy Law Expect

Hospitals ask about advance directives

Under federal law, hospitals that take part in Medicare must give each adult patient written information about the right to make advance directives, and must document in the medical record whether the patient has one. They cannot condition care on whether you have signed one. Expect to be asked at admission. If your proxy has a copy in hand, the hospital can add it to your record.

HIPAA and the health care agent

The federal privacy rule, HIPAA, says that if a person has legal authority to make health care decisions for an adult, the provider must treat that person as the patient's personal representative for the information relevant to that role (45 CFR 164.502(g)). That is why a health care proxy matters for getting information as well as making decisions. A document that covers only money does not, by its terms, give someone authority over medical decisions.

Family and friends without a proxy

Without a proxy, providers may still share information. HIPAA lets them disclose relevant information to a family member, relative, close friend, or another person the patient identified, when it relates to that person's involvement in the patient's care or payment. When the patient is absent or incapacitated, the provider uses professional judgment about the patient's best interests and shares only what is directly relevant (45 CFR 164.510(b)).

This is permission to share, not authority to decide. Being told what is happening does not mean you can consent to treatment. The HHS guidance on family members and friends explains the privacy side.

Should It Be the Same Person for Both?

There is no rule. Many people name the same trusted person, often a spouse or adult child, for both roles. It keeps things simple. Consider two different people if:

  • The person who is best with medical choices is not the best with money, or the reverse.
  • One person lives close to your doctors and another handles finances from a distance.
  • You want a check and balance, with one person watching over the other's role.

Whoever you choose, name an alternate for each role, and talk with them first. Our guide on how to choose an executor covers qualities that apply here too, such as honesty, calm, and willingness. The person must be able to follow your wishes even when they disagree.

What Happens With No Health Care Proxy

If you cannot decide and have named no one, state law fills the gap. According to the American Bar Association's summary, statutes in 44 states set a hierarchy of family members to act as a default surrogate. In more than 20 of those states a close friend familiar with the person's values can act if no family is available, and in about 12 states physicians or ethics committees may decide when no one else can.

The list is usually something like a spouse first, then adult children, then parents and siblings, but the exact order and eligibility rules depend on your state. Problems show up when:

  • The person you would want is not on the legal list, such as an unmarried partner or friend in some states.
  • Family members disagree and no one has clear authority.
  • The default surrogate does not know your wishes.

A court-appointed guardian is the last resort, and it takes time and money. Our article on estate planning for aging parents and the guide to legal documents after a dementia diagnosis explain why acting early matters.

How to Set Up Each Document

  1. Choose and ask your agents. One for health care and one for money. Name an alternate for each.
  2. Get your state's form. Many states offer a free health care proxy or advance directive form. Our living will guide lists state forms and signing rules. Witness and notary requirements differ by state.
  3. Add your wishes. Write down what matters to you, in plain language, and pair the proxy with a living will.
  4. Sign correctly. Follow your state's witness or notary rules so the document will be honored.
  5. Share copies. Give copies to your agents, your doctors, and your hospital's records office. Do not keep the only copy in a safe deposit box.
  6. Set up the financial side. A durable power of attorney is separate. See what is power of attorney for types and steps, and what estate planning costs.

Common Mistakes

  • Assuming a financial power of attorney covers medical decisions. Check the document. If it is silent on health care, do not rely on it.
  • Never telling the agent. A proxy who does not know your wishes cannot honor them.
  • Naming only one person. If they cannot serve, there is no backup.
  • Leaving documents out of reach. A form in a drawer at home does little at 2 a.m. in an emergency room. Record where documents are on your emergency information list.
  • Never updating. Review after a move, divorce, or death of an agent. Forms from another state may be honored in some places, but a current form from the state where you live is safest.

Frequently Asked Questions

What is the difference between a health care proxy and a power of attorney?
A health care proxy, also called a health care power of attorney, names someone to make medical decisions for you when you cannot. A financial power of attorney names someone to manage money and property. A financial power of attorney usually does not include medical decisions, so most adults need both documents.
Is a health care proxy the same as a durable power of attorney for health care?
In most states they describe the same role. Federal law refers to a durable power of attorney for health care as one kind of advance directive. Some states call the form a health care proxy, health care agent designation, or advance health care directive. Use your state's form and terminology.
Can my financial power of attorney make medical decisions?
Not unless the document says so and your state allows it. Most financial powers of attorney cover only money and property. Under HIPAA, a person is treated as your personal representative for health information when they have legal authority to make health care decisions for you, so check that your document actually covers health care.
Who makes medical decisions if I have no health care proxy?
State law decides. According to the American Bar Association, statutes in 44 states set an order of family members who can act as a default surrogate, often starting with a spouse and then adult children. Some states include close friends, and some allow physicians or ethics committees to decide. The exact rules depend on your state.
Do I need a living will if I have a health care proxy?
They do different jobs and work best together. A living will records the treatment you want or do not want. A health care proxy names the person who decides when the document does not cover the situation. See our living will guide for how to combine them.
Does a health care proxy end when I die?
Like other powers of attorney, a health care proxy is generally about decisions while you are alive. After death, the executor or administrator handles the estate. Rules on funeral and organ donation decisions vary by state, so name your wishes in writing and tell your family.
Next step: Our Plan Ahead hub lists the documents most adults need and links to guides for each. If you are helping a parent, start with estate planning for aging parents. For what comes after a death, see our complete guide.
Reviewed October 16, 2026
Official and primary sources used for this guide

We reviewed this page against the sources below. Health care decision laws, form names, and signing rules vary by state; consult a licensed attorney or your state's official forms for your situation.

Page last reviewed: October 16, 2026