daisyBill – Online Article – May 6, 2026
California’s Medical Provider Network (MPN) system was originally designed to help employers control workers’ compensation costs by directing injured workers to approved physicians.
However, critics increasingly argue that the system is failing to deliver on that promise.
Instead of reducing costs and improving outcomes, many believe California’s MPN structure contributes to:
- Delayed treatment
- Extended disability duration
- Increased litigation
- Higher administrative costs
- Rising employer premiums
At the center of the issue is one critical factor: the treating physician.
Why the Treating Physician Matters
In workers’ compensation claims, the treating physician directly influences:
- Medical outcomes
- Return-to-work timelines
- Disability duration
- Employer liability
- Overall claim costs
Simply put, the right physician can help an injured worker recover faster while reducing employer exposure.
Conversely, delayed access to experienced physicians often increases both claim duration and litigation risk.
The Original Purpose of MPNs
California’s MPN system was intended to help employers guide injured workers toward qualified physicians while maintaining coordinated care.
However, opponents argue that MPNs have evolved into something very different.
Rather than prioritizing physician quality, critics claim many MPNs primarily function as discounted reimbursement networks tied to PPO-style contracts.
As a result, there are growing concerns that physician participation is often based less on outcomes and more on willingness to accept lower reimbursement rates.
A Lack of Transparency
One of the biggest criticisms of the MPN system is the lack of transparency.
Currently, there is no requirement for MPNs to publicly disclose meaningful participation criteria tied to:
- Clinical outcomes
- Return-to-work success
- Claim duration
- Quality of documentation
- Employer cost reduction
Critics argue this creates a “black box” system in which physicians can be added or removed with little visibility or accountability.
Specialists Are Leaving Workers’ Compensation
At the same time, reimbursement pressures are causing many specialists to opt out of workers’ compensation altogether.
According to critics of the system, some reimbursement structures fall below Medicare rates.
As a result:
- Fewer specialists participate
- Injured workers wait longer for treatment
- Disability duration increases
- Employers incur additional costs
For employers, delayed care can quickly become expensive.
In California, Temporary Total Disability benefits can exceed $1,700 per week, while Temporary Partial Disability payments may approach $900 per week.
Therefore, every delay in treatment can directly increase employer liability.
The “MPN Maze”
Another major concern is the complexity of navigating MPN networks.
With thousands of overlapping MPNs across California, providers and injured workers often struggle to determine:
- Which MPN applies
- Whether a physician participates
- Whether the network is even active
Critics argue that outdated provider rosters, inaccessible directories, and inconsistent oversight create unnecessary confusion and delay.
Consequently, injured workers may spend valuable time searching for eligible care while treatment and recovery are postponed.
Delayed Care Leads to Litigation
When treatment is delayed, disputes often follow.
Frustrated injured workers may seek legal representation, leading to:
- Increased medical-legal costs
- Additional claim disputes
- Extended disability duration
- Greater employer exposure
Importantly, many of these costs are indirectly tied to delayed access to timely care.
The Bigger Question: Where Is the ROI?
Perhaps the most significant criticism is this:
Employers continue paying for MPN administration without clear evidence that the system consistently delivers:
- Lower overall claim costs
- Faster recovery
- Reduced litigation
- Improved outcomes
- Shorter claim duration
Some studies cited by critics suggest MPN claims may not receive faster treatment than non-MPN claims.
Meanwhile, California workers’ compensation costs continue to rise, with premium increases proposed year after year.
Why Continuity of Care Matters
In workers’ compensation, continuity of care plays a major role in both recovery and claim stability.
When treatment is interrupted:
- Recovery slows
- Documentation gaps emerge
- Return-to-work timelines extend
- Litigation risk increases
Consistent treatment and medication access help stabilize claims and improve outcomes for everyone involved.
How RescueMeds Helps Reduce Delays
At RescueMeds, we understand how delays in treatment can affect injured workers, attorneys, providers, and employers alike.
That is why RescueMeds focuses on helping maintain continuity of care through:
- Fast medication delivery
- Reduced pharmacy-related delays
- Direct-to-patient access
- Consistent treatment support
Importantly, uninterrupted medication access helps support treatment compliance and recovery progression.
By reducing unnecessary delays, RescueMeds helps keep care moving forward, even in complex claims environments.
California’s MPN system was created to control workers’ compensation costs. However, growing criticism suggests that treatment delays, provider access issues, and administrative complexity may actually be increasing employer expenses instead.
Ultimately, faster access to qualified care may be one of the most effective ways to improve outcomes and reduce long-term claim costs.
At RescueMeds, we remain committed to supporting timely care, continuity of treatment, and better recovery outcomes throughout the workers’ compensation process.

