A sweeping change to Colorado’s workers’ compensation system is taking shape in 2026, and injured workers across the state are only beginning to understand what it means for them. The passage of HB 25-1300 — signed into law on June 4, 2025, by Governor Jared Polis — fundamentally rewrites the rules around who controls medical care after a workplace injury. For decades, employers and their insurance carriers held enormous power over which doctors treated injured workers. That power is now shifting decisively toward the workers themselves, with full implementation set for January 1, 2028. Understanding the Colorado workers compensation doctor choice expansion 2026 is not just a legal curiosity — it is actionable knowledge that can directly affect your recovery, your income, and the long-term outcome of your claim. Right now, in 2026, stakeholders are actively shaping the rules that will govern your rights in two years. What happens in these sessions matters to every injured worker in Colorado.
What HB 25-1300 Actually Changed: From 4 Providers to Nearly 1,200
Before HB 25-1300, Colorado’s workers’ compensation system gave injured workers an embarrassingly narrow selection of treating physicians. Under current law, injured workers are presented with just four accredited physicians by their employer or insurer. In many cases, those four providers had longstanding financial and referral relationships with the very insurance companies paying the claims — a structural conflict of interest that critics argued produced undertreatment, premature return-to-work determinations, and inadequate permanent impairment ratings.
The Colorado workers compensation doctor choice expansion 2026 obliterates that bottleneck. Under HB 25-1300, injured workers will have access to nearly 1,200 accredited physicians within 75 miles of their home or workplace, and the window for changing doctors will extend from 90 days to 120 days — or until maximum medical improvement if the employer originally assigned the provider. This is not a marginal expansion — it is a categorical transformation. The law mandates that in the event of a work-related injury, the worker may choose a Level I or II accredited physician within 70 miles of their home or work, or 100 miles in underserved areas. A worker injured in Denver, Colorado Springs, Fort Collins, or Pueblo will have genuine choice among a large, diverse pool of medical professionals, including specialists who may have no financial entanglement with the insurer managing their claim.
It is critical to understand the timeline. The main effective date for expanded physician choice is January 1, 2028 — not 2026. However, 2026 is when stakeholders are actively preparing, holding listening sessions, and shaping implementation. According to the Bureau of Labor Statistics, private industry employers reported 2.5 million nonfatal workplace injuries and illnesses in 2024 — the lowest number for this data series going back to 2003. Even as injury frequency declines, the quality of the treating physician directly correlates with outcomes in a measurable way, making HB 25-1300’s physician expansion all the more consequential for the workers it will serve.
The 30-day extension of the physician-change window — from 90 to 120 days — may seem modest on paper, but in practice it aligns with the reality that many workers do not recognize inadequate medical management until weeks into treatment. Workers will also retain the right to change providers until maximum medical improvement if the employer was the one who originally assigned the provider. This additional protection closes a significant loophole that previously trapped injured workers with employer-selected physicians for the duration of their recovery.
The Data: How Doctor Choice Affects Workers’ Compensation Outcomes
The stakes embedded in physician selection are not abstract. Research consistently shows that injured workers face enormous consequences depending on who manages their care. Workplace injury rates continue to decline overall, but the injuries that occur are growing more severe, costly, and time-consuming for recovery, according to Travelers’ 2026 Injury Impact Report released on May 4, 2026, which analyzed more than 1.2 million workers’ compensation claims filed between 2021 and 2025. Injured employees missed an average of 80 workdays per claim, despite the downward trend in injury frequency.
The financial picture is equally sobering. The top ten causes of serious workplace injuries account for over 86% of the total cost of all workplace injuries, totaling $58.78 billion. Employers pay more than $1 billion per week in direct workers’ compensation costs for disabling, nonfatal workplace injuries. Musculoskeletal injuries affecting the back, shoulder, knee, or multiple body parts account for 56% of all workplace injuries, generating nearly $32.6 billion in costs. These are precisely the injury types where the identity of the treating physician — and their independence from insurer pressure — has the greatest impact on outcome.
Average claim values reinforce why physician selection is a financial, not merely a medical, decision. The average cost of a workers’ compensation claim was $47,316 for 2022–2023, per the National Safety Council. Motor-vehicle crashes resulted in the highest average workers’ compensation claim costs at $91,433, followed by burns at $64,973 and falls or slips at $54,499. The most expensive workers’ compensation claim by type of injury involved loss of limbs, which were valued at $125,058 on average. Trauma claims, the second-most expensive claim type, averaged $68,231. Against these figures, the difference between a physician aligned with insurer incentives and one selected by the worker for their expertise becomes economically decisive.
New hires face particular vulnerability. First-year employees accounted for roughly 37% of all workplace injuries and 34% of total claim costs, resulting in more than 5 million missed workdays during the Travelers study period. These workers — least experienced with the claims process and most dependent on employer-directed systems — are among those who will benefit most from HB 25-1300’s physician choice expansion.
Overexertion remains the leading cause of serious nonfatal injuries, with nearly 1 million cases involving days away from work, job restriction or transfer in 2023–2024. Contact incidents and falls, slips and trips continue to sideline hundreds of thousands of workers. Each of these injury categories requires specialized, unbiased medical management. The old system, which funneled workers to a list of four insurer-selected providers, structurally undermined that possibility.
Why This Is a Fundamental Power Shift — Not Just a Policy Tweak
HB 25-1300 radically shifts the balance of power in workers’ comp treatment away from payers and toward injured workers and providers. To understand why this matters, consider what the old system actually produced. When an employer or insurer selects a physician, that physician operates within an economic ecosystem where repeat referrals, network participation, and insurer goodwill influence practice patterns — sometimes unconsciously, sometimes deliberately. Workers who received inadequate impairment ratings, premature return-to-work clearances, or denial of specialist referrals under employer-directed care had almost no practical recourse under the four-provider model.
Under HB 25-1300, an employer or insurer is required to use the Division of Workers’ Compensation’s utilization standards when responding to a request for authorization from a treating physician, and if they do not, the director of the Division may deem the services as authorized, reasonable, and necessary, and require payment by the employer or insurer. This provision is as important as the physician-choice expansion itself. It eliminates the ability of insurers to simply deny treatment recommended by the worker’s chosen physician without consequence.
HB 25-1300 also shifts the burden of proof to the employer on issues involving whether medical treatment is reasonable, necessary, or related to the workplace injury. Under prior law, injured workers bore the burden of proving their care was necessary — a structurally disadvantaged position when the insurer controlled both the treating physician and the authorization process. This burden-shift alone represents a generational change in how Colorado workers’ compensation disputes will be adjudicated beginning in 2028.
Business groups have not been silent. This expansion represents a major shift toward worker autonomy — though business groups have expressed concerns about potential premium increases. Pinnacol Assurance, Colorado’s largest workers’ compensation insurer, publicly opposed the legislation. A last-minute amendment pushing the implementation date back from January 2026 to January 2028 played a significant part in Governor Polis’s decision to sign the bill, as that date provides “ample opportunity for action.” That two-year runway is now the window in which the rules governing implementation — including geographic exceptions, in-house clinic carve-outs, and enforcement mechanisms — are being written.
How to Use Your New Rights: A Practical Guide for Injured Colorado Workers
While the full physician-choice expansion does not take effect until January 1, 2028, the 2026 landscape already includes meaningful protections and administrative updates that injured workers must understand right now. Here is how to navigate your claim effectively in the current environment.
Step 1: Access the Accredited Physician List and Know the Current Rules
Even before HB 25-1300’s physician-choice expansion activates, Colorado’s workers’ compensation system has an accredited physician list maintained by the Division of Workers’ Compensation. Injured workers can currently select any provider on the DOWC’s Level 1 or 2 accredited provider list as their authorized treating physician, instead of choosing from a list of designated providers — a change that flowed from the 2025 legislative cycle and is being refined through 2026 stakeholder sessions. Request this list immediately upon injury. Do not wait for your employer or insurer to volunteer it.
Also be aware of 2026’s updated administrative rules. The Colorado Division of Workers’ Compensation adopted language for Rule 16 that adopts HIPAA X12 standards for electronic billing of medical claims, effective January 1, 2026, meaning medical bills are now required to be submitted and processed in a HIPAA-compliant electronic format. The Division adopted new language for Rule 18, also effective January 1, 2026, requiring that all Spanish interpreters providing services in the workers’ compensation system hold an approved certification — a change intended to enhance the accuracy and quality of communication between injured workers and healthcare providers.
Step 2: Understand the 120-Day Change Window
The extended physician-change window — 120 days under HB 25-1300, up from the prior 90-day standard — is a critical protection. Injured workers generally have 120 days from each relevant date to exercise change-of-physician rights, and the insurance carrier must pay or provide written notice of denial within 30 days. Do not let this window expire passively. If your current treating physician is undervaluing your injury, deferring to insurer preferences, or recommending premature return-to-work, the 120-day window is your opportunity to change course before your claim trajectory becomes entrenched.
Also know your mileage rights. The official DOWC Quick Reference Guide mileage rate increased from $0.60 per mile in 2025 to $0.63 per mile effective January 1, 2026, and this rate applies statewide. Every trip to an authorized medical appointment must be logged and submitted for reimbursement. Underpayment at the wrong mileage rate is common, and carriers must pay or provide written notice of denial within 30 days of submission.
Step 3: Document Everything from Day One
Documentation is the foundation of any successful workers’ compensation claim. This is true regardless of which physician you see, which insurer is managing your claim, or how cooperative your employer appears in the early days. Write down the exact circumstances of your injury immediately. Preserve all medical records, appointment confirmations, and treatment notes. Keep a mileage log with dates, destinations, and odometer readings for every trip related to your care.
The Maximum Benefits Order for 2026–2027 has been issued and is effective July 1, 2026, setting forth the maximum compensation benefit rate and adjusting the maximum disfigurement benefit, lump sum limits, combined benefit caps, and more. Understanding these updated caps — and confirming your benefits are calculated correctly against them — requires complete documentation from the start of your claim. An insurer who is aware you are tracking every number is an insurer less likely to shortchange you.
In addition, on July 9, 2026, the Division of Workers’ Compensation switched to the new EDI (Electronic Data Interchange) version 3.1, with codes for Permanent Partial Disability (PPD) awards also changing — the body code count increases to 82, allowing for more specificity when reporting injuries. This technical update affects how your injury is coded in the system. A more specific injury code can mean a more accurate impairment rating — and a more accurate settlement. Confirm with your attorney that your claim is coded correctly under the new system.
The Cost-Benefit Calculator: What Physician Choice Is Actually Worth
Skeptics sometimes ask whether physician choice actually matters enough to fight for. The data says yes — decisively. The national average workers’ comp settlement in 2026 is approximately $29,750, but individual settlements range from $3,000 for a minor fracture to over $500,000 for catastrophic spinal or brain injuries, with body part, severity, and surgery status driving most of the variation. The impairment rating assigned by your treating physician is one of the primary inputs into that settlement calculation. A physician who systematically under-rates impairment — as insurer-aligned physicians have incentive to do — can reduce a six-figure settlement to a five-figure one.
Workers’ compensation settlements are built from a formula: your average weekly wage, a doctor’s permanent impairment rating, and the number of weeks your state assigns to the injured body part, plus the cost of your future medical care. Every element of that formula is affected by the physician. The impairment rating is the physician’s direct input. Future medical cost projections come from the physician’s treatment plan. Return-to-work timelines — which affect temporary disability payments — are set by the physician. When your employer controls the physician, the insurer effectively controls the formula that determines what your claim is worth.
What the 2026 Stakeholder Process Means for Your Claim
HB 25-1300, known as “Workers’ Compensation Benefits Proof of Entitlement,” goes into effect on January 1, 2028. In preparation, the Governor tasked the DOWC with collaborating with stakeholders to determine the best policies and tools for implementation. This stakeholder process is not a formality. It is the arena in which the specific rules governing how injured workers exercise their physician-choice rights will be established — and where both worker advocates and insurer-aligned interests are fighting hard for favorable language.
The DOWC is holding multiple 90-minute listening sessions on Zoom to discuss important topics and hear from stakeholders. The working group is being asked to consider further clarifying the permissibility of in-house clinics as an option for injured workers, clarifying that nothing precludes an employer from providing workers with a list of recommended doctors, and identifying mechanisms to lower costs. Each of these agenda items represents a potential carve-out or limitation that, if written broadly, could erode the protections HB 25-1300 was designed to create.
Prior to the bill’s implementation date of January 1, 2028, Governor Polis called for the creation of a working group of stakeholders, legislators, and agency staff to develop recommendations around implementation of the bill and legislation for the 2026 legislative session. This year, the Colorado General Assembly passed five workers’ compensation bills that resulted in several changes — including administrative updates to Rules 1 and 5 governing general definitions, claims adjusting requirements, and service methods. The Division adopted changes to Rule 1: General Definitions and General Provisions, effective July 15, 2026, which update general definitions, provide updated guidance regarding service methods to parties and use of the DOWC’s new external stakeholder portal, and clarify how Colorado state holidays are factored into the timely service of documents and benefit payments.
For workers filing claims today, the stakeholder process has a direct practical implication: the rules are still being written, and an experienced attorney who is tracking these developments can structure your claim to maximize the protections you will be entitled to as HB 25-1300 phases in. Stakeholder meetings and DOWC communications in 2026 are setting expectations for how HB 25-1300 will change billing practices, workers’ compensation benefits proof requirements, and enforcement.
Frequently Asked Questions About Colorado Workers’ Compensation Doctor Choice in 2026
How many doctors can I choose from under Colorado’s new workers’ compensation law in 2026?
HB 25-1300 will expand injured workers’ right to choose among nearly 1,200 accredited physicians within 75 miles of home or workplace when it takes full effect on January 1, 2028. In the interim, injured workers can already select any provider on the DOWC’s Level 1 or 2 accredited provider list as their authorized treating physician, instead of choosing from a list of designated providers. The full scope of the accredited list — and the geographic rules governing access to it — are being refined through the 2026 stakeholder process.
How long do I have to change my treating physician under HB 25-1300?
HB 25-1300 extends the window for changing doctors from 90 days to 120 days, or until maximum medical improvement if the employer originally assigned the provider. This 120-day window applies from the date your authorized treating physician is designated. The additional 30 days beyond the prior standard reflects legislative recognition that workers often do not recognize the signs of inadequate medical management until well into their treatment course. If you have concerns about your current treating physician’s objectivity or thoroughness, consult an attorney before this window closes — it cannot be reopened.
Can my employer or insurer block me from selecting a physician from the expanded accredited list?
Beginning in 2028, the new law provides injured workers control over the selection of their primary treating physician in workers’ compensation cases, allowing them to choose from any Level I or Level II accredited physician through the Division of Workers’ Compensation. Employers will be obligated to notify the employee of their right to select a physician from the Division’s list within prescribed distance limitations. The law also requires insurers to use Division utilization standards when responding to treatment authorization requests — meaning that denial of recommended care now carries real consequences. If an employer or insurer does not follow utilization standards, the director of the Division may deem the services as authorized, reasonable, and necessary, and require payment.
Will selecting my own doctor under HB 25-1300 affect my workers’ compensation benefits?
Selecting a physician from the accredited list does not reduce or forfeit any of your workers’ compensation benefits. Your benefits — including temporary total disability payments, permanent partial disability awards, and medical coverage — are determined by statute, not by which approved physician you select. The Maximum Benefits Order for 2026–2027, effective July 1, 2026, sets forth the maximum compensation benefit rate and adjusts the maximum disfigurement benefit, lump sum limits, combined benefit caps, and more — and these apply regardless of which accredited physician manages your care. What your physician choice does affect is the quality of your impairment rating, the aggressiveness of your treatment, and the credibility of your medical records if your claim is disputed.
What is the stakeholder process happening in 2026, and how does it affect current claims?
HB 25-1300 goes into effect on January 1, 2028, and in preparation, the Governor tasked the DOWC with collaborating with stakeholders to determine the best policies and tools for implementation. This process directly affects current claims because the implementation rules being written now will govern how your rights are exercised when the law activates. It is possible that before the bill goes into effect, there will be amendments to the bill as passed in the 2026 and/or 2027 legislative sessions. Workers filing claims today should work with an attorney who is monitoring these developments in real time — because the rules that determine the scope of your physician-choice rights may shift between now and January 1, 2028. Proactive legal guidance now positions you to benefit fully from the protections that will be in place when your claim matures.
David Prescott is a Workers Rights and Injury Specialist with extensive knowledge of personal injury law and settlement values across the United States. With years of experience analyzing workplace injury claims only cases, David helps injury victims understand their legal rights and the potential value of their claims. David is not an attorney and the information provided is for educational purposes only.