Mountainside Residential Care Center

Mountainside Residential Care Center operates as a residential care facility that provides healthcare services to individuals requiring ongoing support and supervision. The organization is situated in the United States, with its headquarters located within the country. Its core function centers on offering residential care services. No further detail about the specific types of care or patient demographics is provided in the available sources.

Specific quantitative information regarding the organization's size, such as bed count, staff numbers, or revenue, is absent from the supplied material. Consequently, no statements about its scale, geographic reach, or market share can be made based on the documented evidence. The absence of explicit metrics means any description of its footprint must remain qualitative.

During the cyberattack that occurred on October 19, 2023, Mountainside Residential Care Center was identified as part of a healthcare network whose IT systems were compromised. Law enforcement including the FBI and a third‑party cybersecurity firm assisted in investigating the scope of the incident. Throughout the response, the organization issued notifications to state health departments, county officials, emergency medical services providers, and the families of affected patients. These actions reflect its compliance with reporting obligations and its focus on patient safety.

News coverage of the incident references HealthAlliance Hospitals in Kingston, indicating that Mountainside Residential Care Center is affiliated with the HealthAlliance network. This affiliation situates the organization within a broader health system that includes acute care hospitals. Ownership details or parent‑subsidiary relationships beyond this affiliation are not disclosed in the provided sources.