Aug 21 (Reuters) - A ransomware attack that encrypted

certain elements of dialysis firm DaVita's ( DVA ) network

impacted 2.7 million people, the U.S. health department's

website showed on Thursday.

The firm had disclosed in April that it was hit by a

cyberattack. At the time, it said it would continue to provide

patient care as it took measures to restore certain functions,

but it could not "estimate the duration or extent of the

disruption."

DaVita ( DVA ) provides dialysis, a treatment which mechanically

cleans a patient's blood when their kidneys are not functioning

properly, through its network of nearly 3,000 outpatient clinics

and at-home services.

It did not immediately respond to a Reuters request for

comment.

The cybersecurity incident had resulted in a temporary

disruption of the company's operations.

During the second quarter of 2025, the company incurred

charges of about $13.5 million, which increased its patient care

costs by $1 million and its general and administrative expenses

by $12.5 million to remediate the cybersecurity incident and

restore systems with the assistance of third-party

professionals.