STATUS: This investigation is no longer accepting new clients.
We are investigating data breach class action lawsuit claims relating to the Nephrology Associates Medical Group data breach—an event which exposed the private data of countless individuals. If you interacted with Nephrology Associates, your information was probably taken by cybercriminals. That’s serious. They can take out credit cards in your name, get your tax return, take your identity and ruin your credit. If you were notified by Nephrology Associates of this data breach, contact us fast. We can help.
Cole & Van Note is investigating Nephrology Associates Medical Group, a kidney-focused medical practice headquartered in Riverside, California. [1] The organization operates several locations throughout the Inland Empire and maintains records containing sensitive patient information as part of its medical and administrative operations. [2] Healthcare providers that collect and store patient records are responsible for implementing safeguards designed to protect personal and medical data from unauthorized access.
On February 25, 2026, Nephrology Associates began notifying affected individuals that their data had been accessed during a security incident that occurred on or about May 20, 2025. According to publicly reported breach disclosures, the incident involved unauthorized access to systems containing patient records, potentially exposing a wide range of highly sensitive personal and medical information. The breadth of the data involved suggests that both clinical and administrative systems may have been impacted. [3]
Breaches involving both identifying and protected health information are particularly serious, as they may increase the risk of identity theft, financial fraud, and misuse of medical records. Unauthorized access to this type of data can expose not only personal identifiers but also detailed health histories and insurance information.
The types of information potentially exposed in this incident may include:
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Considering the number of people impacted by this event, Cole & Van Note’s data breach attorneys will be pursuing legal action on behalf of those affected. If you have received notice of this data breach, you should contact us for immediate response.
[1] Nephrology Associates Medical Group
[2] Nephrology Associates Data Breach Notice
[3] HIPAA – Nephrology Associates Medical Group Data Breach Notice
Cole & Van Note is investigating Nephrology Associates Medical Group, a kidney-focused medical practice headquartered in Riverside, California. [1] The organization operates several locations throughout the Inland Empire and maintains records containing sensitive patient information as part of its medical and administrative operations. [2] Healthcare providers that collect and store patient records are responsible for implementing safeguards designed to protect personal and medical data from unauthorized access.
On February 25, 2026, Nephrology Associates began notifying affected individuals that their data had been accessed during a security incident that occurred on or about May 20, 2025. According to publicly reported breach disclosures, the incident involved unauthorized access to systems containing patient records, potentially exposing a wide range of highly sensitive personal and medical information. The breadth of the data involved suggests that both clinical and administrative systems may have been impacted. [3]
Breaches involving both identifying and protected health information are particularly serious, as they may increase the risk of identity theft, financial fraud, and misuse of medical records. Unauthorized access to this type of data can expose not only personal identifiers but also detailed health histories and insurance information.
The types of information potentially exposed in this incident may include:
Â
Considering the number of people impacted by this event, Cole & Van Note’s data breach attorneys will be pursuing legal action on behalf of those affected. If you have received notice of this data breach, you should contact us for immediate response.
[1] Nephrology Associates Medical Group
[2] Nephrology Associates Data Breach Notice
[3] HIPAA – Nephrology Associates Medical Group Data Breach Notice
With over 30 years of experience, our firm has represented millions of clients in data breach cases getting big settlements and protecting their personal information.
Data breaches happen in various ways. Common methods include:

Corporations will tell you they are the “victims” in data breaches. Not so. Those who suffer after a data breach are those who have lost their privacy, their money, their peace of mind. When inadequate cybersecurity measures have led to a data breach, the law says you can sue for money damages under many theories, such as:
Data breaches happen in various ways. Here’s a general overview of common methods:

Corporations will tell you they are the “victims” in data breaches. Not so. Those who suffer after a data breach are those who have lost their privacy, their money, their peace of mind. When inadequate cybersecurity measures have led to a data breach, the law says you can sue for money damages under many theories, such as:

People don’t take data breaches as seriously as they should. But you should. As such, for more details and updates about data breaches, visit our Data Breach Law page. But please don’t wait until your information is sold or used to get informed or to call us.
Thereafter, check out additional resources such as our Hacker Checker, the HIPAA Journal and the U.S. Department of Health and Human Services. If you’re still interested, let us direct you to the information you need.
Finally, don’t forget about us if you experience issues relating to data breaches, false advertising/consumer fraud and product liability/defective products claims. Whether you’re confident you have a claim, want fast compensation or just want some friendly advice, it is worth your time to talk with us. Our staff is approachable, knowledgeable and can work with you, free of charge, to meet your unique needs.


For more details and updates about data breaches, visit our Data Breach Law page. People don’t take data breaches as seriously as they should. Don’t wait until your information is sold or used to make a phone call.
Additional resources include our Hacker Checker, the HIPAA Journal and the U.S. Department of Health and Human Services. Let us direct you to the information you need.
Finally, don’t forget about us if you experience issues relating to data breaches, false advertising or consumer fraud and product liability/defective products claims. Whether you’re confident you have a claim, want fast compensation or just want some friendly advice, it is worth your time to talk with us. Our staff is approachable, knowledgeable and can work with you, free of charge, to meet your unique needs.