Endowment / Foundation

Updated:

Open Door Foundation

The Open Door Foundation was established in 1990 as a 501(c)(3) nonprofit, operating as the fundraising and development arm of the Open Door Family Medical...

Open Door Foundation logo

Open Door Foundation

The Open Door Foundation was established in 1990 as a 501(c)(3) nonprofit, operating as the fundraising and development arm of the Open Door Family Medical Center. Farrell has guided the organization from its inception, building a structure where the foundation’s endowment and donor capital directly support clinical operations and community health initiatives across Westchester, Dutchess, Putnam, and Ulster Counties. The foundation’s capital deployment is concentrated entirely on sustaining and expanding the services of the Open Door Care Network. This includes underwriting primary and specialty medical care, dental services, behavioral health programs, and the Women, Infants, and Children (WIC) nutrition program. Unlike foundations with broad grantmaking portfolios, the Open Door Foundation functions as a single-asset vehicle: its investment portfolio exists to generate returns that subsidize a specific care network delivering culturally competent, multilingual services to a predominantly low-income patient base. Governance includes board members with professional backgrounds beyond the nonprofit sphere, such as Patrick Whalen, CEO of the crypto asset manager Liquid Digital, and Noi Sukaviraya, a user experience researcher at IBM. The foundation maintains a physical footprint tied to its clinical network, with a headquarters at 165 Main Street in Ossining and an affiliated facility at 300 North Broadway in Sleepy Hollow. Farrell’s dual role as President and CEO of both the foundation and the medical center ensures tight alignment between fundraising strategy and on-the-ground care delivery priorities. The foundation’s structural differentiator lies in its total operational integration with the medical provider it funds. The chief executive and core administration are shared entities, meaning investment returns and donor dollars flow directly into operating budgets for a single clinical network rather than being reviewed by an external grants committee. This architecture eliminates the typical foundation-program gap; the asset pool is managed explicitly to stabilize and grow a community health system that provided care to its patient base regardless of insurance status or ability to pay.

General information

Firm type

Endowment / Foundation

Year founded

1990

Location

Region

North America

Country

United States

City

Ossining

Corporate office

165 Main Street, Ossining, New York, United States

Additional offices

300 North Broadway, Sleepy Hollow, New York, United States

Principals

Lindsay C. Farrell

President and CEO

Patrick Whalen

Board Member

Maria Mazzotta

Chief Financial Officer

Noi Sukaviraya

Board Member

Sector focus

Healthcare Services

Frequently asked questions

Who runs investment decisions at the Open Door Foundation?

Investment oversight falls under the leadership of Lindsay C. Farrell, who serves as President and CEO of both the foundation and the Open Door Family Medical Center. While the foundation does not publicly disclose a dedicated chief investment officer, the CFO, Maria Mazzotta, likely manages day-to-day financial operations, including the endowment portfolio. The board, which includes professionals from finance and technology sectors, provides governance.

Is the Open Door Foundation a grantmaking foundation or does it directly operate programs?

It operates as a single-purpose fundraising vehicle for the Open Door Care Network rather than a broad grantmaker. Capital raised and investment returns are channeled directly into supporting the clinical operations of the Open Door Family Medical Center, including medical, dental, and behavioral health services.

What is the relationship between the Open Door Foundation and the Open Door Family Medical Center?

The foundation is the dedicated fundraising and development arm of the medical center. The President and CEO, Lindsay C. Farrell, holds the same title at both entities, creating an integrated management structure where the foundation’s asset base exists solely to subsidize the center’s healthcare delivery.

Does the Open Door Foundation maintain an endowment, and how is it managed?

Yes, an endowment investment portfolio is listed among its assets, based in Ossining, New York. The foundation does not publicly disclose its size, asset allocation, or the names of any external investment managers it may use.

Which geographic areas does the Open Door Foundation serve?

The foundation supports the Open Door Care Network, which provides services to nearly 60,000 patients across four counties in New York’s Hudson Valley: Westchester, Dutchess, Putnam, and Ulster.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

Need institutional-grade insight on endowments & foundations?

Altss delivers:

Principals with verified direct contactsAllocation history by asset classOSINT-derived deal signals
Book a demo

Prefer a guided tour?

We’ll walk you through:

Interactive funding timelinesCustom mandate & allocation filters
Book a demo

More Ossining Endowment / Foundation profiles