Question 1

Is Mount Sinai South Nassau a tax-exempt 501(c)(3)?

Accepted Answer

Yes — Mount Sinai South Nassau is recognised by the IRS as a 501(c)(3) organisation (EIN 11-1352310). The IRS recognised Mount Sinai South Nassau as tax-exempt in January 2010.

Question 2

What is Mount Sinai South Nassau's EIN?

Accepted Answer

Mount Sinai South Nassau's Employer Identification Number (EIN) is 11-1352310. The EIN was assigned by the IRS in January 2010. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does Mount Sinai South Nassau do?

Accepted Answer

South Nassau communities hospital is committed to providing quality, comprehensive and easily accessible healthcare services to all residents of the shouth shore communities in a manner that reflects a culture of excellence, personalized, culturally competent care and innovation.

Question 4

Where is Mount Sinai South Nassau located?

Accepted Answer

Mount Sinai South Nassau is located at One Healthy Way, Oceanside, NY, 11572.

Question 5

When was Mount Sinai South Nassau founded or recognised by the IRS?

Accepted Answer

Mount Sinai South Nassau was recognised by the IRS as a tax-exempt organisation in January 2010. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is Mount Sinai South Nassau's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2024), Mount Sinai South Nassau reported $780.5M in total revenue and $732.1M in total expenses.

Question 7

Has Mount Sinai South Nassau been auto-revoked by the IRS?

Accepted Answer

No — Mount Sinai South Nassau (EIN 11-1352310) does not appear on the IRS Auto-Revocation List. Givalgo Discover cross-references the IRS Auto-Revocation List on every profile load; if status changes, this page reflects it.

Question 8

Is Mount Sinai South Nassau listed in IRS Publication 78?

Accepted Answer

Yes — Mount Sinai South Nassau is listed in IRS Publication 78 as an organisation eligible to receive tax-deductible charitable contributions. Pub 78 status is the canonical IRS signal that donations to an org are deductible.

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Mount Sinai South Nassau

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