Window Rock Medicaid ambulance and transport payments climb to $7,705,503 in 2024, showing 9.7% rise

In 2024, Medicaid providers in Window Rock billed $7,705,503 for services categorized as Ambulance and Other Transport Services and Supplies, according to data from the U.S. Department of Health and Human Services Medicaid Provider Spending database. This represented a 9.7% rise compared to 2023, when the total reached $7,026,964 for this service category.

Medicaid, a public health coverage program administered by states and funded jointly through federal and state resources, covers low-income individuals and families, seniors, children and people with disabilities. This makes it one of the largest components of the U.S. health care system.

Taxpayer dollars fund Medicaid payments, so shifts in community billing illustrate how public health care resources are distributed locally.

The “Ambulance and Other Transport Services and Supplies” group consists of Medicaid-billed services defined by the type of care, using standardized HCPCS and CPT coding. For this analysis, each billing code was placed in a single service category based on code prefixes and numeric ranges, which allows analysts to review closely related services while preventing double counting and ensuring historically accurate rankings.

Ambulance and Other Transport Services and Supplies led all service categories by total Medicaid spending in Window Rock for 2024, even as Medicaid expenditures rose for several other service types.

At the state level in Arizona, Ambulance and Other Transport Services and Supplies was the sixth highest category by total Medicaid payments in 2024.

Looking at the five-year trend through 2024, Window Rock’s Medicaid payments for this category increased by $1,849,905, or 31.6%. Growth accelerated at different points during this period, particularly during 2021 and 2023.

This category’s spending was allocated across Window Rock but was concentrated in only a few ZIP codes. In 2024, ZIP code 86515 saw Medicaid payments totaling $7,705,502, accounting for 100% of Ambulance and Other Transport Services and Supplies Medicaid spending in the city for the year.

Medicaid payments for Ambulance and Other Transport Services and Supplies were also focused in a small set of individual billing codes within the category.

For additional perspective, Medicaid payments for this category rose by 9.7% from 2023 to 2024, while payments across all Medicaid claim categories in the city grew just 0.7% for the same time frame.

According to the Centers for Medicare & Medicaid Services, total federal and state Medicaid expenditures were about $871.7 billion in fiscal 2023, accounting for approximately 18% of all U.S. health care costs. This marks a sharp rise from $613.5 billion in 2019, before the COVID-19 pandemic.

The approximately 40% increase over the past few years was driven mainly by rising enrollment and greater service usage during and following the pandemic.

Recent federal budget laws enacted under the Trump administration included major proposals to lower federal Medicaid funds and change the program’s structure. For instance, the “One Big Beautiful Bill Act,” which became law in 2025, is set to reduce federal Medicaid spending by over $1 trillion in the coming decade. The law adds provisions such as work requirements and higher cost-sharing that may restrict coverage and funding for certain beneficiaries. As a result, states may bear increased costs and see slower federal funding growth, even as Medicaid continues to serve tens of millions nationwide.

Note: HCPCS codes are shown for context within the category. Category totals and rankings in this article are based on standardized service groupings rather than individual billing codes.

Information in this article was obtained from the U.S. Department of Health and Human Services Medicaid Provider Spending database. The source data can be found here.