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Gastro Health data breach

Incident readout

Company
Gastro Health
Reported to
Washington Attorney General
Filed
May 22, 2026
People affected
Not stated in the filing
Incident type in filing
Not stated
Our review
Monitoring
Read the official filing

Was this a ransomware attack?

The filing does not say ransomware was involved. We do not label an incident ransomware unless the company’s report says so. Whatever the cause, the steps to protect yourself and the legal question are the same.

Information listed in the filing

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

What we know

Gastro Health operates as a specialized medical provider and healthcare delivery network, focusing on gastroenterology, digestive health services, and specialized outpatient care. Because of the clinical nature of their operations, Gastro Health maintains extensive electronic health records, patient registration files, and insurance billing databases. This infrastructure inherently requires the collection and retention of deeply sensitive personal, clinical, and financial documentation for thousands of patients across multiple care facilities, making the organization a central repository for highly confidential data.

In 2026, Gastro Health reported a formal data security incident to the Washington Attorney General, highlighting vulnerabilities within its digital infrastructure or third-party vendor networks. While exact forensic details continue to emerge, healthcare security breaches of this nature typically involve sophisticated cyberattacks, such as ransomware deployment, unauthorized network infiltration, or credential harvesting targeting administrative and clinical databases. These incidents exploit gaps in perimeter defense systems, allowing unauthorized actors prolonged access to internal servers where sensitive patient and employee files reside.

Investigations into breaches affecting specialized medical providers frequently reveal the exposure of a wide array of confidential records, including full names, dates of birth, Social Security numbers, health insurance policy details, clinical diagnosis notes, and treatment histories. The exposure of this specific combination of medical and financial data creates severe, long-term risks for victims. Unlike standard financial data, compromised medical records cannot be easily reset or replaced. Cybercriminals can exploit this information to commit medical identity theft, fraudulently bill insurance providers, authorize unauthorized prescription drug pickups, or utilize Social Security numbers to open fraudulent financial accounts.

As a covered entity operating within the healthcare sector, Gastro Health was bound by strict regulatory standards under the Health Insurance Portability and Accountability Act (HIPAA), as well as state-level data protection laws. These legal frameworks mandate the implementation of rigorous administrative, physical, and technical safeguards—such as multi-factor authentication, robust encryption standards, and continuous network monitoring—to protect electronic protected health information (ePHI). The occurrence of a data breach of this magnitude serves as a strong indicator that established security protocols may have failed, potentially breaching both statutory duties and the implied contract of care owed to patients.

Receiving an official data breach notification letter from Gastro Health is an acknowledgement that your confidential information was compromised as a result of inadequate security measures. Under Washington law, affected individuals possess the legal standing to pursue accountability through class action litigation, and you are not required to demonstrate actual financial loss or identity theft to participate. Our firm is currently investigating potential legal claims on behalf of impacted Washington residents, operating strictly on a contingency fee basis, meaning there are never any out-of-pocket costs or fees unless we successfully recover compensation on your behalf.

See every breach reported in Washington or read what to do after a ransomware attack.

After the Gastro Health incident: what to do and your options

What should I do after getting the Gastro Health data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
How many people were affected by the Gastro Health data breach, and what was exposed?
The filing does not give a count of affected people and lists the following information as involved: Full Name, Date of Birth, Social Security Number, Medical Record Number, Health Insurance ID Number, Diagnosis and Treatment Information, Billing and Financial Information, Prescription Information. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Did Gastro Health offer free credit monitoring?
Look for an enrollment code in your Gastro Health notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Using the free service won't stop you from joining a lawsuit or settlement later.
Where can I see the official Gastro Health breach notice?
Gastro Health's report is published by the Washington Attorney General: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA41006.pdf Compare it with the letter you received to confirm the dates and details match.
Can I sue Gastro Health over the data breach?
It depends on what was exposed, the law in Washington and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
Do I need a Gastro Health data breach lawyer or attorney?
Whether the company's systems were encrypted by ransomware or data was simply taken, the legal question is the same: did it protect your information the way the law requires? An attorney can review your notice for free, and these cases are usually handled on contingency.
Is there a Gastro Health data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against Gastro Health. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
Is the Gastro Health data breach letter legit or a scam?
A notice from Gastro Health in the mail matches the breach Gastro Health reported to the Washington Attorney General on May 22, 2026. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact Gastro Health through a phone number or website you find yourself.
How much could a Gastro Health data breach settlement or claim be worth?
There is no set amount, and no Gastro Health settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. The filing lists Full Name, Date of Birth, Social Security Number as involved. Keep receipts and records; they're what damages claims are built on.

Other breaches reported in Washington

Attorney advertising. This page reflects a public regulator filing; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.