Wisconsin Medical Records Retention Laws (2026 Guide)

Wisconsin physicians must retain patient medical records for at least 5 years from the date of the last entry, under Wis. Admin. Code Med 21.03, and physician assistants carry a parallel 5-year duty under Wis. Admin. Code PA 3.05. Mental health and substance abuse treatment records require a longer 7-year minimum under Wis. Admin. Code DHS 92.12.

Wisconsin law requires health care providers to retain patient medical records for specific minimum periods depending on the type of provider, the type of record, and the age of the patient. The primary retention standard for physicians comes from Wisconsin Administrative Code Med 21.03, which sets a baseline of 5 years from the last entry. However, other state regulations, federal rules, and special circumstances can extend that timeline significantly.

This guide covers every major retention requirement that applies in Wisconsin, including separate rules for nursing homes, hospitals, physician offices, mental health facilities, and records involving minors. It also explains what happens when a provider closes, how patients can access their records, and how federal laws like HIPAA and Medicare conditions of participation interact with state rules.

Wisconsin Physician and Physician Assistant Records: 5-Year Minimum

The core retention rule for Wisconsin physicians is found in Wis. Admin. Code Med 21.03. The regulation states that a physician must "maintain patient health care records on every patient administered to for a period of not less than 5 years after the date of the last entry, or for such longer period as may be otherwise required by law."

Physician assistants are not covered by ch. Med 21, which by its own terms governs "the practice of physicians." They are credentialed by the Physician Assistant Affiliated Credentialing Board, and Wis. Admin. Code PA 3.05 sets a parallel standard: when patient health care records are not maintained by a separate entity, a physician assistant "shall ensure patient health care records are maintained on every patient for a period of not less than 5 years after the date of the last entry, or for a longer period as may be otherwise required by law." The practical result is the same 5-year floor, but the governing rule differs by credential.

This 5-year clock starts from the date of the most recent entry in the patient's record, not from the date of the first visit or the date of a specific treatment. If a patient returns for care after several years, the clock resets with each new entry.

What Must Be in the Record

Under Med 21.03, every patient record must contain the following clinical information where applicable:

• Pertinent patient history
• Pertinent objective findings from examinations and test results
• Assessment or diagnosis
• Plan of treatment for the patient

Each entry must be dated, must identify the practitioner who made it, and must be "sufficiently legible to allow interpretation by other practitioners for the benefit of the patient." These documentation standards apply to both paper and electronic records. PA 3.05 imposes the same four content elements and the same dating, identification, and legibility requirements on physician assistants.

Who Is Covered by Med 21.03

This regulation applies specifically to physicians (MDs and DOs) licensed in Wisconsin. Med 21.01 states that the chapter was adopted "to govern the practice of physicians in the preparation and retention of patient health care records," and Med 21.02 defines a patient as a person who receives health care services from a physician. It is enforced by the Wisconsin Medical Examining Board, which operates under the Department of Safety and Professional Services (DSPS).

Other provider types, including physician assistants (ch. PA), dentists, chiropractors, and mental health professionals, are governed by their own respective administrative codes. Dentists, for example, follow Wis. Admin. Code DE 8 for patient dental record retention.

Nursing Home Records Retention in Wisconsin

Nursing homes in Wisconsin are regulated under a separate framework. Wis. Admin. Code DHS 132.45 governs medical records in nursing homes licensed by the Wisconsin Department of Health Services.

This chapter does not reach hospitals, and that distinction is often misstated. Chapter DHS 132 is titled "Nursing Homes" and applies to "all nursing homes licensed under s. 50.03, Stats."; DHS 132.45 measures its retention clock from a "resident's" discharge or death. Hospitals are approved under Wis. Stat. 50.35 and regulated by ch. DHS 124 ("Hospitals"), which contains no medical records or retention section. Wisconsin therefore has no state administrative retention rule for hospital medical records, and a hospital's retention floor comes from the federal Medicare conditions of participation covered in the CMS section below.

Retention Period

Under DHS 132.45, an original medical record must be "retained for a period of at least 5 years following a resident's discharge or death when there is no requirement in state law" that mandates a longer period. All other facility records required by the chapter must be kept for at least 2 years.

Content Requirements for Nursing Home Records

Nursing home medical records under DHS 132.45 must include:

• Admission evaluation covering prior treatment, current findings, diagnoses, rehabilitation potential, and level of care
• Physician orders for medications, treatments, diets, and restraints
• Progress notes following each physician visit
• Nursing documentation including history, care plans, and narrative notes
• Social service notes and activities programming documentation
• Rehabilitative services evaluations and progress notes
• Dental service records where applicable

All entries must be "accurate, legible, permanently recorded, dated, and authenticated with the name and title of the person making the entry."

Facility Closure and Ownership Changes

When a nursing home closes, DHS 132.45 requires the facility to "arrange for the storage and safekeeping of records for the periods and under the conditions required." If ownership of a facility changes, the regulation specifies that "medical records and indexes shall remain with the facility." The records transfer with the building and license, not with the departing owner.

Mental Health and Substance Abuse Treatment Records: 7-Year Minimum

Wisconsin applies a longer retention period to mental health and substance abuse treatment records. Wis. Admin. Code DHS 92.12 requires that "treatment records shall be retained for at least 7 years after treatment has been completed."

This regulation applies to all records of persons receiving treatment for mental illness, developmental disabilities, or substance use disorders from the Wisconsin Department of Health Services, county boards, or treatment facilities operating under contract with the department.

Extended Retention Situations

DHS 92.12 identifies three situations where records must be kept beyond the standard 7-year period:

• Audits: Any record undergoing a federal or state audit must be maintained until the audit is completed.
• Legal actions: Records relating to legal actions must be maintained until the legal action concludes.
• Billing and collections: Records related to billing or collections must follow retention periods specified in Wis. Admin. Code DHS 1.06.

Retention Rules for Minor Patients

Wisconsin law provides extended protections for medical records of patients who were minors at the time of treatment. The specific requirements depend on the type of care.

Mental Health and Substance Abuse Records for Minors

Under Wis. Admin. Code DHS 92.12, records for minors must be "retained until the person becomes 19 years of age or until 7 years after treatment has been completed, whichever is longer."

This means that if a 10-year-old patient completes treatment, the records must be kept until the patient turns 19 (9 years), because that is longer than the standard 7-year period. For a 16-year-old who completes treatment, the 7-year period (extending to age 23) would apply because it exceeds the age-19 threshold.

General Medical Records for Minors

For general physician records under Med 21.03, the standard 5-year retention period applies regardless of the patient's age. However, many Wisconsin providers voluntarily retain minor patient records longer because the statute of limitations for medical malpractice claims involving minors does not begin running until the patient reaches the age of majority (18 in Wisconsin). Retaining records until a minor patient turns at least 23 provides a buffer that covers the general statute of limitations period.

HIPAA and Federal Retention Requirements

Federal law adds important layers to Wisconsin's state-level retention rules. Providers must comply with both state and federal requirements, and whichever standard is stricter controls.

HIPAA Does Not Set a Retention Period for Medical Records

A common misconception is that HIPAA requires providers to retain medical records for a specific number of years. According to the U.S. Department of Health and Human Services (HHS), "the HIPAA Privacy Rule does not include medical record retention requirements." State laws govern how long records must be kept.

However, HIPAA does require covered entities to retain their privacy policies, procedures, privacy practices notices, and complaint documentation for 6 years after the later of the date of creation or last effective date. This is an administrative requirement, not a patient records requirement.

HIPAA Governs How Records Are Protected and Destroyed

While HIPAA does not dictate retention periods, it does require covered entities to apply "appropriate administrative, technical, and physical safeguards to protect the privacy of protected health information" for as long as the information is maintained. This includes during the disposal process.

CMS and Medicare Conditions of Participation

Wisconsin hospitals that participate in Medicare must also meet federal retention requirements under the Centers for Medicare and Medicaid Services (CMS) conditions of participation.

Hospital Records Under 42 CFR 482.24

Under 42 CFR 482.24, a hospital participating in Medicare must maintain a medical record for each inpatient and outpatient, and those records "must be retained in their original or legally reproduced form for a period of at least 5 years." Because Wisconsin has no DHS retention rule for hospital medical records, this federal condition of participation is the operative retention floor for Wisconsin hospitals.

In practice, many Medicare-participating hospitals in Wisconsin retain records for 7 to 10 years to satisfy audit requirements and to cover the limitations periods that can apply to malpractice and Medicare fraud claims.

CMS Billing Records

CMS requires Medicare providers to maintain records necessary to support claims for at least 7 years from the date of service. This billing record requirement is separate from the clinical record retention rules and often results in providers keeping complete records longer than the state minimum.

Patient Access to Medical Records in Wisconsin

Wisconsin provides strong patient access rights through Wis. Stat. 146.83. Patients have a legal right to inspect and obtain copies of their health care records.

Inspection Rights

Any patient, or a person authorized by the patient, may "inspect the health care records of a health care provider pertaining to that patient at any time during regular business hours, upon reasonable notice." The patient must submit a statement of informed consent.

Copy Fees

Wisconsin law sets specific maximum fees for copies of medical records:

These dollar amounts are adjusted annually on July 1 based on changes in the consumer price index. Patients eligible for Medical Assistance (Medicaid) receive one set of copies at 25% of the standard fees.

Penalties for Violations

Violations of Wisconsin's patient health care records requirements carry significant consequences. A knowing and willful violation can result in liability for actual damages plus exemplary damages of up to $25,000. Negligent violations carry exemplary damages up to $1,000, and the court may award attorney fees to the prevailing patient. These damages provisions are set out in Wisconsin's broader patient-health-care-records statutes rather than in the access-rights text of Wis. Stat. 146.83 itself.

It is also a criminal offense to falsify, conceal, or intentionally destroy medical records with intent to prevent or obstruct an investigation or prosecution.

Proper Destruction of Medical Records in Wisconsin

Once the applicable retention period has expired, Wisconsin providers must follow specific procedures when destroying medical records to comply with both state and federal requirements.

Wisconsin State Requirements

Wis. Stat. 134.97 governs the disposal of records containing personal information by medical businesses. A medical business may not dispose of records containing personal information unless it takes one of the following steps:

• Shreds the record before disposal
• Erases the personal information before disposal
• Modifies the record to make the personal information unreadable before disposal
• Takes actions reasonably believed to ensure no unauthorized person will have access to the personal information between disposal and destruction

A medical business that violates these disposal requirements may be required to forfeit up to $1,000 per violation.

HIPAA Disposal Standards

The HHS Office for Civil Rights specifies that proper disposal of paper records containing protected health information may include "shredding, burning, pulping, or pulverizing the records so that PHI is rendered essentially unreadable, indecipherable, and otherwise cannot be reconstructed."

For electronic records, acceptable methods include clearing (overwriting with non-sensitive data), purging (degaussing), or physically destroying the media through disintegration, pulverization, melting, incineration, or shredding.

Simply placing records in a publicly accessible trash receptacle is never acceptable under HIPAA, even if the records are in sealed bags.

Documentation of Destruction

Providers should maintain a permanent log of all records destroyed, including the date of destruction, a description of the records, the method used, and the name of the person who performed or supervised the destruction. While Wisconsin does not mandate a specific destruction log format, maintaining one protects the provider in the event of a future inquiry or audit.

What Happens When a Wisconsin Practice Closes

Wis. Stat. 146.819 establishes the requirements for handling patient records when a health care provider ceases practice or dies.

Three Options for Records

A provider who stops practicing must handle all patient records in one of three ways:

1. Arrange for another person to maintain the records in compliance with Wisconsin's patient health care record statutes (Wis. Stat. 146.81 through 146.835). The new custodian must agree in writing.
2. Arrange for deletion or destruction of all patient records following proper disposal procedures.
3. Use a combination of both approaches, maintaining some records while destroying others.

Patient Notification Requirements

If records will be maintained by another person or entity, Wis. Stat. 146.819(2) requires the closing provider to do at least one of the following:

• Send written notice by first-class mail to each patient's last-known address, explaining where and by whom the records will be maintained, OR
• Publish a class 3 notice in a newspaper published in the county where the practice was located

If records will be destroyed, Wis. Stat. 146.819(3) likewise requires the provider to do at least one of the following:

• Send written notice by first-class mail to each patient's last-known address at least 35 days before the records are destroyed, stating when the records will be destroyed and where the patient may retrieve them before that date, OR
• Publish a class 3 notice under ch. 985 in a newspaper published in the county where the practice was located, specifying the date the records will be destroyed

The 35-day minimum attaches only to the mailed notice. A provider that chooses the newspaper alternative is not held to a 35-day period by the statute, which is why patients should not assume they will receive a letter before old records are destroyed.

Exemptions

Wis. Stat. 146.819(4) exempts several categories of facility outright, with no transfer or successor condition attached: community-based residential facilities and nursing homes licensed under s. 50.03, hospitals approved under s. 50.35, hospices licensed under s. 50.92, and home health agencies licensed under s. 50.49 (4). A hospital is exempt because it is a hospital, not because it hands its records to anyone.

The successor-transfer condition belongs to the local health department paragraph, not to the facility exemptions above it. Under par. (4) (f), a local health department is exempt where it ceases operations and transfers the patient health care records in its possession to a successor local health department. Exempt facilities are governed instead by their own rules, such as DHS 132.45 for nursing homes and the federal Medicare conditions of participation for hospitals.

Summary of Wisconsin Retention Periods

Providers should always apply the longest applicable retention period when multiple rules overlap. A Wisconsin hospital that participates in Medicare should retain records for at least 7 years to satisfy the federal 5-year clinical minimum and the longer federal billing documentation period.