Aliso Viejo Medicaid payments for Pathology and Laboratory Procedures climb 2.5% to $12.8 million in 2024

In 2024, Medicaid providers in Aliso Viejo submitted $12,838,235 in claims under the Pathology and Laboratory Procedures category, based on data from the U.S. Department of Health and Human Services Medicaid Provider Spending database. This reflects a 2.5% rise from 2023, when $12,521,604 in Medicaid claims were filed for these services.

Medicaid is a public insurance program jointly administered by state and federal governments. It insures low-income residents, families, seniors, children, and people with disabilities, making it a major component of the U.S. health care system with federal and state funding.

Since Medicaid funding is taxpayer-supported, shifts in billing activity reflect how community health funds are distributed.

The “Pathology and Laboratory Procedures” classification groups Medicaid-billed services using standardized HCPCS and CPT code segments. For this review, each code was allocated to a single service type according to standardized prefixes and number ranges. This allowed grouping of similar services for analysis, eliminated double counting, and preserved category rankings over time.

Pathology and Laboratory Procedures received the largest share of Medicaid payments among all categories in Aliso Viejo for 2024.

On a statewide level, Pathology and Laboratory Procedures placed fifth by payment totals in California in 2024.

Between the five years before 2024, Medicaid spending in Aliso Viejo related to Pathology and Laboratory Procedures went up by $4,986,057, or 63.5%. Growth was especially strong during certain periods, with significant annual increases noted in 2021 and 2020.

Although these services were provided throughout Aliso Viejo, Medicaid payments were mainly concentrated in a handful of ZIP codes. For 2024, ZIP code 92656 accounted for $12,838,235 in payments—representing 100% of the city’s Medicaid spending in this category.

Within Pathology and Laboratory Procedures, payment totals were clustered among only a few billing codes.

When comparing years, Medicaid spending on Pathology and Laboratory Procedures in Aliso Viejo increased by 2.5% from 2023 to 2024, while overall Medicaid payments for all service categories in the city grew by 12.7% during that period.

According to the Centers for Medicare & Medicaid Services, Medicaid spending from federal and state sources totaled about $871.7 billion in fiscal 2023, making up roughly 18% of all national health expenditures, a sharp increase from the $613.5 billion seen in 2019 before the COVID-19 pandemic.

This represents about 40% growth over a few years, mainly due to higher enrollment and increased usage during and following the pandemic.

Recent federal legislation enacted during the Trump administration featured proposals to reduce and restructure federal Medicaid funding. For instance, the “One Big Beautiful Bill Act,” signed into law in 2025, is set to decrease federal Medicaid spending by over $1 trillion over 10 years. The act also brings work requirements and expanded cost-sharing—changes that may restrict coverage and funding for some recipients. These adjustments are likely to transfer more costs to the states and limit federal Medicaid expansion even as the program continues to cover tens of millions nationwide.

Note: HCPCS codes are provided for reference within the category. All category rankings and totals reflect standardized service groupings, not individual billing codes.

This article is based on information from the U.S. Department of Health and Human Services Medicaid Provider Spending database. The underlying data can be accessed here.