Neither document exists under Massachusetts law by those names. A “medical power of attorney” and a “directive to physicians” are terms used in other states, most often Texas. In Massachusetts, the document that gives someone legal authority over your medical care is a health care proxy, created under General Laws Chapter 201D. Massachusetts does not have a statute making a living will binding on doctors. If you moved here with out-of-state documents, or downloaded a generic online form, you may not have what you think you have.
What is a Health Care Proxy?
A health care proxy is the only advance directive that carries legal force in Massachusetts. It names a person, called your agent, to make medical decisions for you when you cannot make them yourself.
Its key features:
- Your agent decides. Once the proxy is active, your agent has the same authority you would have, including decisions about treatment, surgery, medication, and end-of-life care.
- Providers must follow it. Health care facilities are bound by your agent’s decisions as if you had made them.
- It activates on a written determination. Your agent gets no authority until your attending physician determines in writing that you lack the capacity to make or communicate health care decisions, and records the cause, nature, extent, and probable duration of that incapacity in your medical record.
- You can name an alternate in case your first choice is unavailable.
You can also write limits or specific instructions directly on the form, which is the closest Massachusetts gets to blending a proxy with a living will.
How Is a Health Care Proxy Signed?
The execution requirements are specific, and a form signed incorrectly may not hold up.
- You must be at least 18 and of sound mind.
- You must sign in the presence of two adult witnesses.
- The witnesses sign, affirming you appeared to be 18 or older, of sound mind, and under no undue influence.
- Your agent cannot be a witness. Neither can your alternate agent.
- You cannot name an owner, operator, or employee of a facility where you are a patient unless that person is related to you.
Notarization is not required in Massachusetts. Copies are as valid as the original, so make several and distribute them.
Is a Living Will Legally Binding in Massachusetts?
No, and this is the point most people get wrong.
Massachusetts is one of a small number of states with no statute giving living wills legal effect. A living will, sometimes called a personal directive or an advance directive, is not binding on your physicians here. The Massachusetts law about health care proxies and living wills collects the relevant statutes and confirms the distinction.
That does not make a living will useless. It is meaningful evidence of your wishes, and it gives your agent direction when they face a decision you never discussed. Think of it this way:
- The health care proxy names the decision maker. It has legal force.
- The living will gives that person guidance. It has persuasive weight, not legal force.
The risk is relying on the living will alone. A document that describes your wishes but names nobody leaves your family with no one holding authority, which is how families end up in Probate and Family Court seeking a guardianship.
What If I Moved Here From Another State?
Have your documents reviewed. This is the single most common gap we find.
A Texas medical power of attorney, a California advance health care directive, or a Florida designation of health care surrogate may be honored in Massachusetts, particularly where the other state’s law is similar. But “may be honored” is not the same as “will be followed without argument,” and a hospital in a stressful moment is not the place to test it.
The practical fix is simple: sign a Massachusetts health care proxy. It takes minutes and removes the question entirely. If you split time between states, sign the appropriate document for each.
What Else Belongs With the Proxy?
A health care proxy alone leaves gaps. Three companion documents complete the picture.
| Document | What it covers | Legally binding in MA |
| Health care proxy | Medical decisions when you lack capacity | Yes |
| HIPAA authorization | Access to your medical records | Yes |
| Durable power of attorney | Financial and legal decisions | Yes |
| Living will / personal directive | Your treatment preferences | No, guidance only |
The durable power of attorney is the one people forget. Your health care agent cannot pay your mortgage, manage your accounts, or deal with your insurance. That requires a separate financial document under Chapter 190B. Without it, your family may need a court-appointed conservator.
A HIPAA authorization matters because your agent’s authority only begins once incapacity is documented. Before that point, providers may refuse to share information with your family at all.
What is a MOLST, and Do I Need One?
A MOLST, or Medical Orders for Life-Sustaining Treatment, is different from everything above. It is an actual medical order signed by a clinician, not a planning document, and it travels with you across care settings.
MOLST is appropriate for people with serious advanced illness, not for healthy adults. It records specific decisions about resuscitation, intubation, and similar interventions, and because it is a clinician’s order, emergency responders follow it. If you are managing a serious diagnosis, this is a conversation to have with the treating physician alongside your estate planning documents.
Who Decides If I Have No Proxy?
Massachusetts has no statute that automatically appoints your spouse or adult child as medical decision maker. This surprises people.
In practice, clinicians often work informally with close family. When there is disagreement, an unclear situation, or a decision to withdraw life-sustaining treatment, the informal approach breaks down. At that point, someone has to petition the Probate and Family Court for a guardianship, which takes time, costs money, and happens during a medical crisis.
A health care proxy costs almost nothing and prevents all of it.
Frequently Asked Questions
Does Massachusetts have a medical power of attorney?
Not by that name. The equivalent document is a health care proxy under Chapter 201D. A Massachusetts durable power of attorney covers financial matters, not medical decisions.
Will my out-of-state living will be followed here?
It may guide your doctors but it is not legally binding in Massachusetts. Sign a Massachusetts health care proxy to be certain someone has authority.
Does a health care proxy need to be notarized?
No. Massachusetts requires your signature plus two adult witnesses who are not your agent or alternate agent.
Can I change or revoke my health care proxy?
Yes, at any time while you have capacity. Signing a new proxy, or telling your provider, are both effective ways to revoke.
Sign the Document That Actually Works Here
The terminology varies from state to state, but the underlying need does not: someone has to be authorized to speak for you. In Massachusetts that authority comes from a health care proxy, and nothing else fully substitutes for it.
To review your health care proxy, durable power of attorney, and HIPAA authorization, contact us to schedule a consultation. We help families throughout Essex County and the Merrimack Valley, including Andover, North Andover, Reading, North Reading, and Wilmington.