Michigan Patient Advocate Designation: Naming a Healthcare Agent

A Michigan patient advocate designation is the document that names your healthcare agent. Under MCL 700.5506, it appoints an adult patient advocate to make medical or mental health treatment decisions when you cannot participate in those decisions as described in the designation.

For the full advance-directive picture, see our Michigan healthcare directive guide; this post focuses on the patient advocate designation.

Naming the right agent matters more than the form. Choose an adult who will be available, who understands your wishes, and who is not barred from witnessing, since family members are often disqualified as witnesses. Many people also name an alternate advocate in case the first cannot serve. The designation must be in writing, signed, dated, and witnessed by two qualified witnesses, then made part of your medical record before it is used. The advocate's authority takes effect only when you are unable to participate in medical treatment decisions, mental health treatment decisions, or both, depending on the powers granted.

For the larger planning file, compare Michigan estate planning basics and Michigan digital assets so medical authority, financial authority, and account records stay together.

Patient Advocate Designation

MCL 700.5506 lets a patient designate an adult patient advocate. The advocate can exercise powers concerning care, custody, and medical or mental health treatment decisions if the document grants those powers and the statutory conditions are met.

The designation may also address anatomical gift authority. If that authority is included, the document must state that the authority remains exercisable after death.

Signing and Witnesses

The designation must be in writing, signed, dated, witnessed, executed voluntarily, and made part of the patient's medical record before it is used.

Two witnesses are required. Michigan bars several people from serving as witnesses, including the patient's spouse, parent, child, grandchild, sibling, presumptive heir, known devisee, physician, patient advocate, and certain insurance or care-facility employees.

Ask about witnesses before signing day. Family members and care-connected people are often the easiest people to find, but they may not qualify.

When the Advocate Can Act

The designation must state that the advocate's authority is exercisable only when the patient is unable to participate in medical treatment decisions, mental health treatment decisions, or both, depending on the powers granted.

MCL 700.5508 deals with the determination of the advocate's authority to act. Families should ask the healthcare provider how the document is placed in the medical record and how inability to participate is documented.

Financial POA Is Different

A Michigan financial power of attorney under Chapter 556 handles money and property. It does not replace the patient advocate designation.

Use the Michigan power of attorney guide for financial authority. Use a patient advocate designation for healthcare authority.

If no patient advocate document exists and the person cannot participate in decisions, the Michigan guardianship planning guide explains the court-supervised adult guardianship path.

Records to Share

Give copies to:

• the patient advocate
• any alternate advocate
• the physician or care team
• the facility where care is being provided
• the person who keeps the broader estate-planning file

After death, families usually shift to death certificates, probate forms, asset transfer records, and tax records. Start with Michigan death certificate copies and the Michigan probate guide.

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Sources:

• Title: MCL 700.5506, Designation of patient advocate. Publisher: Michigan Legislature. Publication Date: Michigan Compiled Laws current through PA 9 of 2026. URL: https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-700-5506
• Title: MCL 700.5508, Determination of advocate's authority to act. Publisher: Michigan Legislature. Publication Date: Michigan Compiled Laws current through PA 9 of 2026. URL: https://www.legislature.mi.gov/Laws/MCL?objectName=MCL-700-5508
• Title: Michigan Legislature, EPIC Part 5, Designation of Patient Advocate. Publisher: Michigan Legislature. Publication Date: Michigan Compiled Laws current through PA 9 of 2026. URL: https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-386-1998-V-5

This article provides general Michigan healthcare directive information. Ask a Michigan attorney or healthcare provider about witness, wording, acceptance, and medical-record steps for a specific plan.