Medical power of attorney in New Mexico: how to sign one
The short answer
In New Mexico, a power of attorney for health care names someone to make medical decisions when you can't. It must be in writing and signed by you; no witnesses or notary are required. If you name nobody, the law turns to your spouse, a long-term partner, adult children, parents, siblings, grandparents, then a close friend.
The question under every medical power of attorney is a simple one. If you can't speak for yourself, who talks to the doctor?
New Mexico calls the document a "power of attorney for health care," and it is one kind of "advance health-care directive." This page covers how to sign one, how your wishes fit in, and who decides if you name nobody. It is part of our guides to estate planning state by state. For the basics of the role, see what a medical power of attorney is.
How do I sign one in New Mexico?
New Mexico keeps this simple. A power of attorney for health care must be in writing and signed by you (NMSA 24-7A-2).
The statute doesn't require witnesses or a notary. The state's optional form says witnesses are recommended but not required, and it has two optional lines for them. Having two people sign can help if anyone later questions the document, so many people use them.
Two more details from the statute:
- It survives incapacity. It stays in effect after you lose capacity, which is the whole point.
- It usually starts at incapacity. Unless your document says otherwise, your agent's authority begins only once you are found to lack capacity. The state form lets you choose for it to start right away instead.
New Mexico's financial power of attorney follows different rules, and a notary matters more there (NMSA 45-5B-105). Our New Mexico power of attorney guide covers that document.
Is there an official form?
Yes, an optional one. The "Optional Advance Health-Care Directive" form appears in the statute itself (NMSA 24-7A-4). Part 1 names your agent. Part 2 is where you write instructions about your care.
You don't have to use it. Any signed writing that meets the rules works.
Who can I name, and who can't serve?
Almost any adult you trust. There is one statutory limit: unless related to you by blood, marriage or adoption, your agent can't be an owner, operator or employee of a facility where you are receiving care (NMSA 24-7A-2).
Because the statute requires no witnesses, it also has no list of people barred from witnessing. If you add witnesses, choosing two adults who aren't your agent keeps things clean.
Your agent is a fiduciary: legally required to act in your interest and follow what you wrote.
New Mexico also has a separate Mental Health Care Treatment Decisions Act for mental health care decisions (NMSA 24-7B-1).
Do I need a living will too?
New Mexico doesn't use the name "living will." End-of-life wishes go in an "individual instruction," either by itself or inside your advance health-care directive, in Part 2 of the state form (NMSA 24-7A-2).
An individual instruction can be written or oral. An oral one must be given by telling a health care provider directly. Writing it down is still wise, so nobody has to remember what you said.
Our post on health care power of attorney vs living will explains how the two work together, and treatment preferences helps you think through what to write.
Who decides if I haven't named anyone?
New Mexico has a default list, and it has two features worth knowing (NMSA 24-7A-5).
First, you can name a surrogate without any paperwork. While you have capacity, you can simply tell your supervising health care provider who you want. That person goes to the front.
If you didn't, or that person isn't reasonably available, the law goes in this order:
| Order | Who can decide |
|---|---|
| 1 | Your spouse, unless legally separated or a divorce, annulment or separation is pending |
| 2 | A long-term partner: someone in a committed relationship like a spouse's, where you each consider yourselves responsible for the other |
| 3 | An adult child |
| 4 | A parent |
| 5 | An adult brother or sister |
| 6 | A grandparent |
| 7 | A close friend: an adult who has shown special care and concern for you, knows your values, and is reasonably available |
If people in the same group disagree, the provider follows the majority of those who have spoken up. If a group is evenly split, that group and everyone below it is set aside. The surrogate must follow your instructions and known wishes, and otherwise your best interest.
Notice two things. An unmarried partner ranks second, ahead of your children. A close friend can serve, but only after grandparents. You can also disqualify anyone, in a signed writing or by telling a provider.
Most states have a list like this, and they differ. Our post on medical decisions without a power of attorney compares them, the 50-state guide to default decision-makers has each state, and our who decides for me tool shows who would speak for you.
Here is a typical case, a composite. Dorothy is 74, widowed, and lives in Las Cruces. Her daughter lives in Denver. Her neighbor Carmen drives her to appointments and knows what she would want. Dorothy names Carmen as her agent on the state form, with her daughter as backup. Witnesses are optional, but two neighbors sign anyway.
How do I choose my agent?
Once the signing is done, the practical questions matter most. Is the person willing? Can they get to the hospital? Will they follow your wishes even when they'd choose differently?
A short checklist:
- They know what you want, because you've told them.
- They can stay calm in a hospital hallway and ask questions.
- They live close enough, or can travel when needed.
- You've named a backup in case they can't. Our post on having a backup in every role explains why.
Our post on how to choose a medical power of attorney has more questions to ask.
Some people would like a professional standing by, first or behind a friend. A Kinly membership includes a medical power of attorney written for your state, and you decide who comes first and who is the backup.
Once your health papers are done, our New Mexico probate guide covers what happens to your home and savings later.
Common questions
Does a medical power of attorney need to be notarized in New Mexico?
No. New Mexico requires only that it be in writing and signed by you. The optional state form recommends witnesses but doesn't require them.
Who makes medical decisions in New Mexico if there's no power of attorney?
Anyone you told your provider you wanted comes first. Otherwise: your spouse, a long-term partner, an adult child, a parent, an adult sibling, a grandparent, and then a close friend who knows your values.
Can a close friend make medical decisions for me in New Mexico?
Yes. A friend can be named as your agent, or you can tell your provider you want them. Without either, a close friend can serve only if nobody on the family list is reasonably available.
Is there an official New Mexico form?
Yes. The statute includes an optional advance health-care directive form. You don't have to use it; any signed writing that meets the rules is valid.
Sources
This page is general information, not legal or financial advice. Laws vary by state.