Central Ozarks Medical Center Reports Data Breach to Montana AG 2025

Central Ozarks Medical Center filed a data breach notification with the Montana Attorney General on January 9, 2026, reporting an incident that occurred in November 2025. The breach exposed various types of sensitive personal and medical patient data, necessitating vigilance from affected individuals.

State: Montana
Breach date: November 10, 2025
Reported: January 9, 2026

What may have been exposed

Full Name
Date of Birth
Social Security Number
Medical Record Number
Health Insurance ID Number
Diagnosis and Treatment Information
Prescription Information
Provider and Treatment Dates
Billing and Financial Information

Central Ozarks Medical Center, a healthcare provider, submitted a data breach report to the Montana Attorney General's office on January 9, 2026. This notification pertains to a data security incident that was identified on November 10, 2025, which potentially compromised sensitive patient information.

The reported exposed data categories include Full Name, Date of Birth, Social Security Number, Medical Record Number, Health Insurance ID Number, Diagnosis and Treatment Information, Prescription Information, Provider and Treatment Dates, and Billing and Financial Information. Such comprehensive exposure of personal and health data carries significant risks for those affected.

Exposure of this nature can lead to various forms of identity theft, medical fraud, or financial schemes. Unlike a compromised credit card, sensitive medical and personal identifiers are difficult to change, making long-term monitoring crucial. The investigation into the incident is currently ongoing, with Central Ozarks Medical Center described as monitoring the situation.

Individuals who receive a notification letter from Central Ozarks Medical Center should remain alert. It is recommended to review explanation of benefits (EOB) statements, medical bills, and financial account statements for any unauthorized activity. Consider placing a fraud alert or security freeze on credit reports with major credit bureaus and be cautious of unsolicited communications requesting personal information.

This information is based on the official data breach filing made public by Central Ozarks Medical Center with the Montana Attorney General's office, serving as a record for individuals seeking to verify the details of the incident.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

Freeze your credit
Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.
Watch your financial accounts
Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.
Check for medical identity theft
Review the Explanation of Benefits statements from your health insurer for services or claims you never received, which can signal misuse of your medical identity.
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

Source: Montana Attorney General filing

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