The Merck Patient Assistance Program overwhelmingly directs funding to provide Merck prescription medicines and adult vaccines to uninsured or underinsured patients, primarily via its Patient Assistance Program and very large programmatic disbursements. Giving is highly concentrated into a handful of extremely large awards—likely reflecting in‑kind medication donations or centralized program funding to serve individual patients and partner providers. This reflects a narrow, operational focus on medication access rather than diversified philanthropic grants.
Very few, extremely large grants concentrated on programmatic/in‑kind support for medication and vaccine access
Notable grantees: Various (recipients of the Merck Patient Assistance Program), See Statement 4 (unspecified large recipient), Merck Patient Assistance Program Inc. (program operations)
Merck Patient Assistance Program Inc directs almost all of its giving toward one purpose: making Merck medicines and adult vaccines available at no charge to eligible patients who lack insurance coverage or cannot afford treatment. The organization’s recent grants are unusually large and programmatic, reflecting a centralized assistance model rather than a broad portfolio of discretionary philanthropy. In the latest grant list, one award of $1,952,689,147 went to "Various" in New Jersey for Merck PAP support, and another award of $1,911,974,863 was listed for "See Statement 4" in Rahway, New Jersey. These entries point to a funding structure built around high-volume medication access, bulk replenishment, and patient assistance administration. The foundation’s work is concentrated on prescription medicines and adult vaccines, with eligibility tied to income and insurance status. Rather than funding a wide range of nonprofits, it operates through patient assistance programs that serve uninsured people and safety-net facilities. The result is a narrow but highly specific charitable profile centered on access to essential Merck products.
The clearest theme in Merck Patient Assistance Program Inc’s grantmaking is medication access. A 2024 grant of $1,952,689,147 to "Various" in New Jersey supported Merck PAP, which provides certain Merck medicines and adult vaccines free to eligible patients without insurance coverage. Adult vaccination access is also central: the Merck Vaccine Patient Assistance Program offers certain Merck adult vaccines free of charge to eligible adults who cannot afford them. The foundation also supports facility-level distribution through bulk replacement programs for eligible sites serving large numbers of low-income, uninsured patients. For individual medicine access, the Merck Patient Assistance Program provides certain Merck medicines free to eligible individuals, with a single application able to cover up to one year of medicine.
Grant sizes are extremely concentrated: the 25th percentile is $1,766,476,375, the median is $1,828,547,299, and the 75th percentile is $1,890,618,223. That distribution shows a small band of very large awards rather than a wide spread of gift sizes. The pattern also suggests recurring program funding, since the recent grants list shows similarly sized awards across 2023, 2024, and 2025. Merck Patient Assistance Program Inc is a regular funder, not a DAF, and it makes grants to individuals. The structure is operational and eligibility-based, with support delivered through patient assistance programs and bulk replacement arrangements rather than an open competitive grant process.
$5.6B
$26.4M
$1.9B
$1.9B
Most grants fall between $1.8B and $1.9B, with a median of $1.8B.
25th Percentile
$1.8B
Median
$1.8B
75th Percentile
$1.9B
About 100% of grants go to recipients in NJ.
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Giving is geographically narrow. Every recent grant in the provided data went to recipients in the United States, and 100% of grants were given to recipients in New Jersey. Recipient locations in the recent grants include Various, NJ and Rahway, NJ. The active program descriptions also show U.S.-based service delivery, with patient assistance and bulk replacement programs focused on eligible facilities and individuals in the United States.
It primarily funds access to Merck medicines and adult vaccines for eligible patients who are uninsured or underinsured. The recent grants and program descriptions center on patient assistance, bulk replacement, and free product provision rather than a broad mix of charitable causes.
Its grant sizes are very large and tightly clustered. The 25th percentile is $1,766,476,375, the median is $1,828,547,299, and the 75th percentile is $1,890,618,223.
It funds individuals as well as program delivery structures. The program descriptions include direct patient assistance for eligible individuals and bulk replacement support for facilities serving large numbers of low-income, uninsured patients.
The recent grants in the data are entirely U.S.-based, and 100% were given to recipients in New Jersey. Recipient locations listed include Various, NJ and Rahway, NJ.
The recent grant list shows similarly large awards in 2023, 2024, and 2025, which indicates repeated program funding over multiple years rather than a single isolated award.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| See Statement 4 | Rahway, NJ | $1,911,974,863 | 2025 | N A |
| Various | Various, NJ | $1,952,689,147 | 2024 | The Merck Patient Assistance Program Inc. Merck PAP provides certain Merck medicines and adult vaccines for free to eligible patients who do not have insurance coverage or who without Mercks assistance cannot afford their Merck medicine and vaccines. |
| Various | Various, NJ | $1,704,405,451 | 2023 | Assisting various patients in medical and financial need. The Merck Patient Assistance Program inc. Merck PAP provides certain Merck medicines and adult vaccines for free to eligible patients who do not have insurance coverage or who without assistance cannot afford their Merck medicine and vaccines. |
See Statement 4
$1,911,974,863N A
Various
$1,952,689,147The Merck Patient Assistance Program Inc. Merck PAP provides certain Merck medicines and adult vaccines for free to eligible patients who do not have insurance coverage or who without Mercks assistance cannot afford their Merck medicine and vaccines.
Various
$1,704,405,451Assisting various patients in medical and financial need. The Merck Patient Assistance Program inc. Merck PAP provides certain Merck medicines and adult vaccines for free to eligible patients who do not have insurance coverage or who without assistance cannot afford their Merck medicine and vaccines.