CorVel Tech Failure Leaves Hundreds of Providers Unpaid

March 2, 2026 9 min read

A technical failure at Third-Party Administrator (TPA) CorVel led to thousands of wrongful e-bill rejections and payment denials.

Months later, CorVel has not fully reprocessed the affected bills.

Starting in December 2025, CorVel incorrectly rejected over 1,900 e-bills submitted by daisyBill clients and denied payment on more than 3,800 others, in each case erroneously citing missing supporting documentation.

CorVel has since acknowledged that they had received the supporting document files for each bill, but a technical glitch on its end prevented the TPA from extracting the contents of those files.

More than 1,400 of those bills remain unpaid as of this writing, despite daisyBill's extensive and ongoing efforts to get providers paid. A full account of those efforts is detailed below.

Providers billing for employees of Walmart/Sam's Club and the County of Los Angeles saw the highest rates of improper denials. A full list of affected employers also appears below.

If you submitted e-bills to CorVel in or since December 2025 and are not a daisyBill client, audit your submissions now. CorVel may have improperly rejected or denied your e-bills.

daisyBill Alerts CorVel

In early January, daisyBill noticed a dramatic uptick in e-bill rejections and immediately alerted CorVel. Our agents spent the next two months pushing the TPA toward a resolution, resubmitting the improperly rejected e-bills and pressing CorVel relentlessly to reprocess them.

Over 36 emails daisyBill exchanged with CorVel between January 5 and February 26, 2026, CorVel repeatedly promised action and repeatedly fell short. When daisyBill followed up on February 25 to report that 1,485 of the 3,836 improperly denied e-bills had still not been paid, CorVel pledged only to "review" the outstanding bills, which remain unpaid.

For CorVel, "we'll review it" apparently serves as a substitute for actually paying providers who treat injured workers.

The Danger for Providers (Who Don’t Use daisyBill)

To be clear: it is virtually impossible for daisyBill e-bills to be missing documentation.

daisyBill's task-based billing software does not allow providers to submit an e-bill without attaching supporting documents. daisyBill assigns every e-bill file and its corresponding documents file the same unique attachment control number, ensuring documents are not separated in transmission.

Regardless, payer technical failures happen. Fortunately, daisyBill clients have the advantage of a billing platform that monitors every submission, flags improper rejections and denials in real time, and resubmits e-bills when necessary.

Moreover, our team is dogged in advocating for our clients and insisting that payers remediate their errors.

Meanwhile, providers who do not use daisyBill may have no such protection and may not realize when payers improperly reject or deny their e-bills. Who is resubmitting their bills or documenting payers’ failures to support follow-up action (or, in this case, to support formal complaints to state authorities, which daisyBill will submit this week)?

If your practice submitted e-bills to CorVel in or since December 2025 and does not use daisyBill, we strongly urge you to audit your e-bill submissions for improper rejections and denials citing missing documentation.

Employers Impacted by CorVel's Failure

The following employers have injured workers whose treating providers remain unpaid due to CorVel's ongoing failure to remediate its technical error. For California bills, many of these employers may owe providers penalties and interest for failure to reimburse on time.

Employer	Unpaid e-Bills
Walmart / Sam's Club	483
County of Los Angeles (CA) Unit A — Sheriff's Department	236
County of Los Angeles (CA) Unit C	116
Providence Health & Services	73
Barrett Business Services Inc.	50
Butler America Holdings, Inc.	33
Standard & Preferred Insurance Company	28
Reliance Steel & Aluminum	26
Stater Bros. Markets	17
Encompass Health	16
Keurig Dr Pepper Inc.	15
Commercial Cleaning Systems	15
Vallarta Supermarkets	14
Landry's	14
Command Security Corporation	14
Washington Hospital Services	13
University of Southern California	13
Sharp Healthcare	12
Montgomery County Self-Insurance Program (MD)	10
Healthcare Risk Advisors	10
Sonoco Products Company	9
Save Mart Supermarkets	9
Sysco Corporation	8
AGI Group Holdings, L.P.	8
Town of Islip (NY)	7
Care West Insurance Company	7
Sun Mar Healthcare	6
Performance Food Group	6
Georgia Municipal Association	6
El Pollo Loco	6
Continuing Life LLC	6
Central Garden & Pet Company	6
Trillium Staffing Solutions	5
Rite Aid Corporation	5
Recology	5
Lineage Logistics Holdings, LLC	5
Hoag Memorial Hospital Presbyterian	5
Flowers Foods, Inc.	5
County of Kern (CA)	5
Cedar Fair, L.P.	5
Burrtec Waste Group	5
The Cheesecake Factory	4
Swift Transportation Company	4
Premier Food Concepts	4
O'Reilly Auto Parts	4
Nike, Inc.	4
HMSHost	4
CalPortland Company	4
Caliber Holdings Corporation	4
The GEO Group, Inc.	3
San Diego Metropolitan Transit System (CA)	3
Larry Flynt Publications, Inc. — Guaranteed Cost	3
Driscoll's Inc.	3
County of Tulare (CA)	3
WKS Restaurant Corp	2
Wellpath Holdings, Inc.	2
Wayfair	2
U.S. Renal Care, Inc.	2
Therapy / Massage / Acupuncture	2
Texas Roadhouse	2
Staples, Inc.	2
Raley's	2
Orange County Fire Authority (CA)	2
NextEra Energy, Inc.	2
Miami-Dade County (FL)	2
ISS Facility Services	2
City of Beverly Hills (CA)	2
Bridgestone Americas, Inc.	2
BB&T Corporation	2
Arrow Exterminators	2
Acadia Healthcare Management Company, Inc.	2
Academy Sports & Outdoors, Inc.	2
Aaron Thomas Company	2
Advance America Cash Advance Centers	1
Areas USA, Inc.	1
Bass Pro Shop, LLC	1
Batla Enterprises 2 Inc.	1
BELLA CANVAS	1
Benchmark Human Services	1
Castle & Cooke, Inc.	1
CC-Development Group, Inc.	1
Chaffey Joint Union High School District (CA)	1
Champagne Resorts, Inc.	1
City of Fort Lauderdale (FL)	1
City of Salinas (CA)	1
CKE Restaurants Holdings Inc.	1
Construction Innovations	1
Cost Plus, Inc.	1
County of Riverside (CA)	1
Cross Country Healthcare	1
Equipment & Devices (DME)	1
First American Financial Corporation	1
Foot Locker, Inc.	1
Frontier Management LLC	1
FRSTeam by Custom Commerce	1
Fullerton School District (CA)	1
Galaxy Enterprises Inc.	1
Goodwill Industries of San Diego	1
GXO Logistics, Inc.	1
H&R Block	1
Hot Topic, Inc.	1
Icahn Automotive Group	1
iHeart Media, Inc.	1
Jackson Family Wines	1
Jackson Laboratory	1
Leprino Foods Company	1
Leslie's Inc.	1
Los Angeles County Development Authority	1
Martin Marietta Materials Inc.	1
Maverik, Inc.	1
Medline Industries, LP	1
National Veterinary Associates	1
Niagara Bottling, LLC	1
Pacific Dental Services	1
Park River Holdings, Inc.	1
Physical Therapy / Radiology / EMG	1
Pie Insurance Services Inc.	1
Plaza Wholesale Electric	1
Prospect Medical Holdings, Inc.	1
PVH Corp.	1
Recreational Equipment, Inc.	1
Resourcing Edge	1
Southwest Traders	1
Space Exploration Technologies	1
State of North Carolina — Office of State Human Resources	1
Syracuse City School District	1
Tawa Services, Inc.	1
The Gap, Inc.	1
The Jones Financial Companies, LLP	1
The Wonderful Company LLC	1
United Fire Group	1
Unspecified	1
US Venture, Inc.	1
Wallcraft Drywall	1
Woodward, Inc.	1
Zurn Elkay Water Solutions Corporation	1
Total	1,485

CorVel’s Insufficient Action: A Timeline

The timeline below documents daisyBill's persistent, good-faith efforts to resolve this issue, and CorVel's failure to completely and adequately mitigate its failure.

Date	Sender	Summary
1/5/2026	daisyBill	daisyBill reported incorrect rejections to CorVel.
1/6/2026	CorVel	CorVel began researching.
1/7/2026	CorVel	CorVel instructed daisyBill to resubmit rejected e-bills.
1/7/2026	daisyBill	daisyBill alerted CorVel to incorrect payment denials.
1/9/2026	CorVel	CorVel instructed daisyBill to resubmit denied e-bills.
1/9/2026	CorVel	CorVel instructed daisyBill to hold off on resubmissions as CorVel identified technical issue.
1/12/2026	daisyBill	daisyBill asked CorVel if daisyBill should continue holding resubmissions.
1/12/2026	daisyBill	daisyBill alerted CorVel that initial resubmissions were rejected again.
1/12/2026	CorVel	CorVel stated: “...an issue was found with the image file process;” CorVel will let daisyBill know when resubmissions can resume.
1/13/2026	daisyBill	daisyBill alerted CorVel that incorrect denials affected January submissions as well as December. Identified that County of LA bills are disproportionately affected. Asked if daisyBill should stop all e-bill submissions to CorVel until CorVel resolves the issue.
1/13/2026	CorVel	CorVel told daisyBill to resume resubmitting rejected/denied e-bills.
1/13/2026	daisyBill	daisyBill requested list of affected e-bills from CorVel.
1/14/2026	CorVel	CorVel provided a list of e-bills sent through 12/28/2025.
1/14/2026	daisyBill	daisyBill requested full list of affected e-bills through January 2026 because the EDI attachment issue still persists.
1/14/2026	daisyBill	daisyBill requested a meeting to address CorVel's ongoing EDI attachment failure.
1/14/2026	CorVel	CorVel confirmed (1) the original issue has been fully resolved, and corrective measures have been implemented to prevent it from occurring again and (2) A revised list of bills requiring resubmission due to the incorrect 277s will be provided to daisyBill at the latest by tomorrow morning.
1/14/2026	daisyBill	daisyBill requested CorVel include the bills that CorVel incorrectly denied in the revised list.
1/14/2026	daisyBill	daisyBill asked how CorVel plans to reprocess and pay the 1,000+ providers who have not received timely payment.
1/14/2026	CorVel	CorVel stated: “Question for you – for those bills we sent the denial 277 on, if we send you another 277 and/or 835 for the same record will that cause any issues in your system?”
1/15/2026	daisyBill	daisyBill requested CorVel clarify resolution proposal because it incorrectly conflates two processes: 277 Acknowledgement Accept/Reject and 835 electronic Explanation of Review (e-EOR) adjudication. Confirmed daisyBill already resubmitted 1,900+ incorrectly rejected e-bills.
1/15/2026	CorVel	CorVel offered two options: (1) CorVel can identify incorrectly denied bills, reprocess them, and include any applicable interest/penalties or (2) CorVel can provide the list of total affected bills to daisyBill to resubmit, and CorVel will process and include any interest/penalties. Asked if the 1,900+ daisyBill resubmissions are based on the initial list CorVel sent to daisyBill.
1/15/2026	daisyBill	daisyBill instructed CorVel to proceed with Option 1. Requested CorVel provide daisyBill a list of bills where CorVel will send corrected 835s so that daisyBill can put an alert on these bills explaining the reason for the receipt of conflicting 835s. Confirmed the initial list CorVel sent to daisyBill of impacted bills (1) was incomplete because it only included daisyBill submissions up to 12/28/2025, (2) included both bills with erroneous 277 Reject and 835 Denial, and (3) included bills that were not erroneously rejected or denied for missing documentation. Provided CorVel with a list of e-bills daisyBill resubmitted due to erroneous 277 Rejects. Advised penalties and interest should not accrue unless the payment is more than 45 days overdue for non-government employers and 60 days for government employers from the date of CorVel’s receipt of the e-bill.
1/15/2026	CorVel	CorVel confirmed “Option 1” is underway. Aimed to provide daisyBill with the following by end of day tomorrow: (1) list of incorrectly rejected e-bills and (2) list of incorrectly denied e-bills where CorVel will send corrected 835s.
1/16/2026	CorVel	CorVel confirmed “Option 1” was in progress. Asked about two scenarios, in addition to the 1,900+ e-bills daisyBill previously resubmitted: (1) additional e-bills were resubmitted electronically to CorVel and are already being processed by CorVel and (2) additional bills were resubmitted non-EDI to CorVel. CorVel is comparing their internal list of incorrectly rejected e-bills against the two scenarios outlined above. Once the review is complete, CorVel will provide an updated list of any remaining bills that they will re-send for processing.
1/19/2026	daisyBill	daisyBill confirmed daisyBill resubmitted more bills in addition to the 1,900+ e-bills identified in the 1/15/2026 email. Provided two tables extensively detailing and explaining the daisyBill resubmissions.
1/20/2026	CorVel	CorVel provided daisyBill with list of 741 rejected e-bill examples that were not resubmitted non-EDI. Requested daisyBill to review list and confirm which e-bills should be reprocessed and which e-bills should be excluded from reprocessing.
1/20/2026	daisyBill	daisyBill reported the majority of the bills in the list should be excluded from reprocessing, as daisyBill has already resubmitted them in the manner outlined in the previous email. Requested two rejected e-bills be reprocessed and asked when CorVel will commence reprocessing the incorrectly denied bills and sending corrected 835s.
1/20/2026	CorVel	Corvel confirmed finalizing the list of incorrectly denied bills and completing a comparison to any resubmissions received. Aim to provide daisyBill with the list of bills by end of day tomorrow.
1/20/2026	CorVel	Corvel provided daisyBill with list of 3,836 denied e-bill examples. Requested daisyBill to review list and confirm which e-bills should be reprocessed.
1/21/2026	daisyBill	daisyBill requested CorVel reprocess all the bills in the list.
1/21/2026	CorVel	CorVel confirmed bills will be reprocessed.
1/23/2026	CorVel	CorVel confirmed bills are now in process.
1/23/2026	daisyBill	daisyBill reported plans to monitor receipt of new 835s.
2/25/2026	daisyBill	daisyBill alerted CorVel that daisyBill has received 2,351 new 835s for the 3,836 incorrect denials that CorVel was reprocessing. Asked when daisyBill can expect the remaining 835s.
2/25/2026	CorVel	CorVel responded to daisyBill with an “Out of Office” auto-reply.
2/26/2026	CorVel	CorVel pledged to review outstanding bills.

daisyBill makes comp billing faster, easier, and less costly. Click below to learn more:

BILL BETTER: DAISYBILL

0 Reader Comments

There are no comments for this article. Be the first to comment!

DaisyBill provides content as an insightful service to its readers and clients. It does not offer legal advice and cannot guarantee the accuracy or suitability of its content for a particular purpose.