Baltimore Medical System Inc Discloses Patient Data Breach in Indiana

Baltimore Medical System Inc has reported a data breach to Indiana regulators, involving a security incident that occurred in July 2025. This breach exposed a comprehensive range of sensitive patient information, including medical and personal identifiers, which could lead to various forms of fraud for affected individuals.

State: Indiana
Breach date: July 2, 2025
Reported: September 29, 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

Baltimore Medical System Inc officially reported a data breach to Indiana authorities on September 29, 2026. This filing indicates that the security incident impacting their systems initially took place on July 2, 2025. The investigation into the full scope of the breach is currently ongoing, with authorities monitoring the situation.

The compromised information includes a wide array of highly sensitive personal and health data. Specifically, the exposed categories are Full Name, Date of Birth, Social Security Number, Medical Record Number, Health Insurance ID Number, Diagnosis and Treatment Information, Prescription Information, and Provider and Treatment Dates.

Exposure of this detailed health and personal information creates significant risks for affected individuals. Malicious actors could use this data for identity theft, to file fraudulent claims for medical services, or to gain unauthorized access to healthcare and prescriptions. The combination of personal identifiers with medical history makes this type of data particularly valuable to criminals.

Individuals who receive a breach notification from Baltimore Medical System Inc should carefully review the information provided. It is generally advised to remain vigilant by monitoring financial accounts and credit reports for any suspicious activity. Placing a fraud alert or freezing credit can also help prevent unauthorized access to financial services.

Additionally, review all Explanation of Benefits (EOB) statements from your health insurer for services you did not receive. Be wary of unsolicited communications requesting personal information, as these could be phishing attempts by those attempting to exploit the breach. These details are derived from official public filings made with regulatory bodies.

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.
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: Indiana Attorney General filing

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