# John T Mather Memorial Hospital

John T Mather Memorial Hospital is a Nonprofit Organization based in Westbury, United States.

## Overview

- **Organization type:** Nonprofit Organization
- **Headquarters:** Westbury, United States
- **Region:** North America

## About

The IRS Exempt Organizations Business Master File snapshot retrieved on 2026-10-14 identifies John T Mather Memorial Hospital as a tax-exempt nonprofit organization exempt under Section 501(c)(3). Its Employer Identification Number is 11-1639818. Its reported mailing city is Westbury, New York, United States. For the tax period ending December 2024, the retained IRS record reports total assets of USD 477,150,031. Reported income for that tax period is USD 616,823,134. Reported revenue for that tax period is USD 478,588,031. The reported NTEE classification code is E220. The IRS ruling year recorded in this snapshot is 1933. Original retained record: IRS Exempt Organizations Business Master File, eo1.csv, EIN 11-1639818. Total assets are balance-sheet assets, not assets under management. These are dated IRS records; they do not establish current finances or a present investment mandate.

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Updated: 2026-10-25T16:21:26Z

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