The California Health Care Foundation (CHCF) recently released its 2026 Regional Market Report on Los Angeles County. The report provides a detailed look at how the Los Angeles health care system has changed since CHCF’s previous study in 2020–21.

While much of the report focuses on Medi-Cal and the health care safety net, there are several findings that are important for employers and employees covered by group medical insurance. The Los Angeles health care market is large, fragmented and constantly changing—and those changes can affect both the cost of coverage and the provider networks available through employer-sponsored health plans.

Consolidation Can Mean Higher Health Care Costs

One of the most important issues for employers is the continued consolidation of hospitals and physician organizations.

CHCF reports that corporate ownership of risk-bearing physician organizations continues to expand in Los Angeles. Organizations such as Optum Health and Astrana have grown substantially, while Altais, a for-profit affiliate of Blue Shield of California, has also entered the Los Angeles market.

Hospital consolidation is occurring as well. UCLA Health and other health systems have acquired hospitals or expanded their geographic presence, although the Los Angeles hospital market remains considerably more fragmented than some other California markets.

Why does this matter to an employer purchasing health insurance?

When hospitals and physician groups become larger, they can gain greater negotiating leverage with health insurance companies. That can allow them to negotiate higher reimbursement rates for the services they provide. Those higher costs ultimately become part of the overall cost of health care—and health insurance companies generally pass those costs through to employers and employees in the form of higher premiums and/or higher out-of-pocket costs.

The Los Angeles Times recently highlighted this issue in an article examining the significant increase in California employer health insurance costs expected for 2027. The Times reported that insurers are expecting medical and prescription drug costs to increase approximately 9% in 2027. The article specifically identified the growing size and market power of some hospital systems as an important factor contributing to higher hospital prices.

As USC health care economist Glenn Melnick explained to the Times, when health systems become sufficiently large and dominant, they can acquire the leverage to effectively dictate the prices they receive from insurance companies.

This is an important part of the health insurance cost discussion that is sometimes overlooked. Medical insurance premiums do not simply increase because insurance companies decide to charge more. The underlying cost of the medical care being insured is a major component of those premiums.

Los Angeles Has a Large but Fragmented Health Care Market

Despite the consolidation that has occurred, Los Angeles remains a relatively fragmented health care market.

CHCF reports that only Kaiser Permanente and Cedars-Sinai each account for more than 10% of acute-care hospital discharges in Los Angeles County. The eight largest health systems collectively account for less than 60% of hospital discharges.

This is different from some other California markets where a small number of hospital systems control a much larger share of the market.

Nevertheless, the direction of the market is important. Hospital systems and physician organizations continue to become larger, and that can affect their negotiating position with health insurance companies.

For employers, this means that the provider network behind a medical plan deserves careful attention.

The Network Can Be Just as Important as the Insurance Company

An employer may have several medical plans available that look very similar when comparing premiums, deductibles, copayments and out-of-pocket maximums. But the provider networks can be dramatically different.

This is particularly important in Los Angeles because employees may have strong preferences for particular hospitals, medical groups or specialists.

The name of the insurance company on the employee’s ID card does not necessarily tell the entire story. Depending on the type of plan, access to doctors and hospitals may be determined by the specific network, medical group or physician organization associated with the plan.

For employees receiving ongoing treatment, a change in medical plans can therefore mean much more than simply paying a different premium. It could mean changing doctors, specialists or hospitals.

Rising Medical Costs Are Becoming a Bigger Employer Issue

The increasing cost of health care is particularly challenging for small and mid-size employers.

The Los Angeles Times reported that the average California family premium for employer-sponsored coverage increased 24% between 2022 and 2025, reaching $28,397. The Times also reported that employers are facing what could be the largest increase in California health insurance premiums in 16 years for 2027.

The impact extends beyond the employer’s benefits budget. When medical insurance costs increase, employers have several choices: absorb the additional cost, increase the employee’s share of the premium, change the plan design, move to a lower-cost plan, or make other adjustments to compensation and benefits.

For a small business, there is often considerably less room to absorb these increases.

This is why controlling the underlying cost of medical care—not simply finding an insurance company with a lower premium—is becoming increasingly important.

What Does This Mean for Small and Mid-Size Employers?

The CHCF report reinforces several points that are easy to overlook during a group medical insurance renewal.

First, provider networks deserve as much attention as premiums and benefit levels. Two plans with similar deductibles, copayments and out-of-pocket maximums can provide very different access to care.

Second, employers should not assume that an insurance company’s overall reputation tells the entire story. An insurance company may have an excellent network in one part of Los Angeles County and a very different network in another.

Third, network changes and consolidation make it particularly important for employees to verify their doctors and hospitals when changing plans. This is especially important for employees who are undergoing ongoing treatment or have established relationships with particular specialists.

Finally, employers should recognize that provider consolidation can have a direct economic impact on their health insurance costs. When large hospital systems and physician organizations have greater negotiating leverage, the prices paid by health plans for medical services can increase. Those higher medical costs eventually work their way into the premiums paid by employers and employees.

The Bottom Line

The CHCF report is a useful reminder that health insurance is about more than the insurance company and the monthly premium. The underlying health care market—including hospitals, physician organizations and provider networks—plays a major role in determining both the cost and value of an employer’s medical plan.

For small and mid-size employers, choosing a medical plan should therefore involve looking at three things together: the cost of the plan, the benefits it provides, and the providers employees can actually access.

And as hospitals and physician organizations continue to consolidate, the first of those factors—the cost—is increasingly connected to the structure and negotiating power of the health care providers themselves.

The challenge for employers is that there is no simple solution. But understanding what is happening in the health care market is an important first step toward making better decisions about group medical insurance.

Sources

California Health Care Foundation — Los Angeles Regional Market Report 2026

Los Angeles Times — California employer health premiums will cost as much as a new car in 2027