The Hartford

Also known as Hartford
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Contact Information
Name
The Hartford
Type
Insurance
daisyBill Payer ID
db03469
Hours of Operation
08:00 AM - 07:00 PM EDT
Telephone Numbers
Main
(866) 401-9222
Main
(866) 401-9222
Bill Review
The Hartford Medical Bill Processing Center
(800) 662-5814
Express Scripts
(800) 945-5951
Mitchell International
(800) 732-0153
CA Medical Provider Networks (MPNs)
Company Website

Hartford NATIONAL DATA

2,286
Provider Count
12,575
Injury Count
83,736
Bill Count
79%
e-Bill %
3%
Duplicate Bill %
8
Avg Days To Pay

Hartford CALIFORNIA DATA - EDI COMPLIANCE

Since October 2012, California law has mandated that claims administrators accept electronic medical bills (e-bills) and adhere to specific timeframes established by the Division of Workers’ Compensation (DWC) Medical Billing and Payment Guide. These timeframes govern the following Electronic Data Interchange (EDI) transactions:

  • 837 (e-bill) Receipt: The provider's initial submission of the electronic medical bill and subsequent Second Review appeals.

  • 277 Acknowledgement (ACK) Receipt: An electronic confirmation from the claims administrator indicating that the e-bill has been received and whether it has been accepted or rejected.​

  • 835 Explanation of Review (EOR) Receipt: A detailed electronic response from the claims administrator outlining the adjudication results of the e-bill, including payment details or reasons for denial.

By tracking this EDI data, daisyBill helps providers identify trends, resolve billing discrepancies, and maintain transparency in the workers’ comp electronic billing process.

837 e-Bill Sent

California law requires Hartford to accept workers’ comp e-bills and Second Review appeals submitted electronically by providers. daisyBill transmits all bills and appeals using the X12 837 EDI standard, as mandated by DWC Rule 7.1.

When Hartford fails to accept e-bills compliantly, daisyBill resorts to non-EDI methods (fax, email, or mail) to submit paper bills for processing.

The table below shows how often Hartford properly accepts e-bills sent via the required X12 837 EDI standard and how often Hartford's failure forces providers to submit paper bills.

91%
X837 Stats
X12 837 EDI
Original Bill
Second Review Appeal
Total
X12 837 EDI Compliant
837 Sent
37,246
93%
6,286
81%
43,532
91%
Yes
837 Not Accepted
2,727
7%
1,471
19%
4,198
9%
No

277 Acknowledgement (ACK) - Timeliness

California requires Hartford to electronically send a 277 Acknowledgement (277 ACK) to the provider within two working days of receiving an e-bill. This notice confirms whether Hartford accepted or rejected the e-bill for payment adjudication. If the 277 ACK indicates acceptance, it serves as proof that Hartford received the e-bill for processing.

The table below shows how often Hartford sends 277 ACK notices to daisyBill clients within the required two working days after receiving an e-bill.

99%
X277 Stats
X12 277 ACK Receipt
Original Bill
Second Review Appeal
Total
X12 277 Timeliness Compliant
277 Receipt Timely - 2 Working Days
36,533
99%
6,152
99%
42,685
99%
Yes
277 Receipt - 3+ Working Days
528
1%
83
1%
611
1%
No
277 ACK Missing
4
0%
0
0%
4
0%
No

277 Acknowledgement - Erroneous e-Bill Rejections

daisyBill tracks the following criteria from Hartford 277 Acknowledgement (277 ACK) responses to e-bills:

  • 277 Accept: Confirms that the e-bill was accepted for payment adjudication.

  • 277 Reject: Indicates that the e-bill was rejected, with an associated STC Category and STC Code explaining the reason.

  • STC Invalid – Reject Second Review: An improper rejection of a Second Review appeal using invalid STC Category and/or STC Code.

  • STC Invalid – Reject Injury Claim Valid: An incorrect rejection of an e-bill where the claims administrator previously paid another bill associated with the same injury claim.

  • STC Invalid – Reject Category/Code: A rejection where the STC Category and/or STC Code provided is invalid or not allowed.

  • STC Invalid – Reject Prior Accept: An incorrect rejection of an e-bill that was previously accepted via an earlier 277 ACK.

These criteria provide detailed insight into how often Hartford appropriately processes or improperly rejects e-bills and appeals.

79%
X277 Stc Stats
277 ACK STC Code
Original Bill
Second Review Appeal
Total
X12 277 STC Compliant
277 ACK Accept
29,824
80%
4,334
70%
34,158
79%
Yes
277 Reject Error - Invalid STC Category/Code
5,651
15%
0
0%
5,651
13%
No
277 Reject Error - Valid Injury Claim
1,574
4%
0
0%
1,574
4%
No
277 Reject Error - Prior ACK Accept Sent
12
0%
0
0%
12
0%
No
277 Reject Error - Improper Second Review / Appeal Rejection
0
0%
1,901
30%
1,901
4%
No
STC Not Applicable - 277 Missing
4
0%
0
0%
4
0%
Yes

835 Explanation of Review (EOR) Receipt

An electronic Explanation of Review (EOR) is transmitted using the X12 835 EDI standard and provides details on the adjudication of an e-bill. DWC Rule 7.1 requires Hartford to electronically send an Explanation of Review (EOR) to the provider using the X12 835 EDI standard.

  • For Original e-Bills, Hartford must electronically send the EOR within 15 working days after receiving the e-bill.

  • For Second Review Appeals, Hartford must electronically send the EOR within 14 calendar days after receiving the Second Review e-bill.

The table below shows how often Hartford sends X12 835 EORs to daisyBill clients within the required timeframes.

89%
X835 Stats
X12 835 Receipt
Original Bill
Second Review Appeal
Total
X12 835 Compliant
835 Posted
26,781
89%
3,692
85%
30,473
89%
Yes
835 Balance Errors - Posted
280
1%
13
0%
293
1%
No
835 Late Receipt - Posted
231
1%
556
13%
787
2%
No
835 Missing
704
2%
97
2%
801
2%
No
835 Invalid - Unpostable
1,941
6%
8
0%
1,949
6%
No

Hartford CALIFORNIA DATA - REIMBURSEMENT STATISTICS

CA Average Days to Pay

For each bill sent from daisyBill software to Hartford, our technology tracks the count of business days it took Hartford to process the bill.

For the listed California workers’ comp fee schedules, this table reflects the average count of business days from Hartford’s receipt of a bill until the daisyBill client received an explanation of review (EOR) and payment from Hartford.

* California requires claims administrators to pay e-bills for medical treatment within 15 working days of receipt of the e-bill.

California Workers' Comp Fee Schedule
Average Days to Pay
Medical *
8.7
Interpreter
6.5
Medical-Legal
7.3
Facility *
7.9
Copy Service
16.0

CA Official Medical Fee Schedule

The California Official Medical Fee Schedule (OMFS) establishes the reimbursement amounts due to providers for medical treatment furnished to injured workers. However, rather than reimbursing providers the reimbursement amounts due per the OMFS, Hartford uses Preferred Provider Organizations (PPOs) to reduce the reimbursements paid to providers.

For Hartford medical treatment bills, this table reflects the OMFS Reimbursement Due to daisyBill clients for medical treatment provided to injured workers. Hartford Reimbursement Reduction reflects the amount Hartford failed to pay daisyBill clients. The Hartford Reduced Reimbursement reflects the reimbursement amount Hartford ultimately reimbursed daisyBill providers.

79%
Official Medical Fee Schedule (OMFS)
OMFS Reimbursement Due
$4,335,703
100.0%
Hartford Reimbursement Reduction
$915,076
21.1%
Hartford Reduced Reimbursement
$3,420,627
78.9%

Hartford CALIFORNIA DATA - PENALTY & INTEREST

If Hartford fails to remit payment within mandated time frames, California law requires the claims administrator to “self-execute” Penalty and Interest payments directly to the provider. Often claims administrators fail to self-execute these Penalities and Interest (P&I).

Using e-billing data, daisyBill calculates the Total P&I Due to daisyBill clients and the amount of P&I Hartford reported paying our clients.

The Penalty & Interest Balance Due displayed here is the amount Hartford failed to self-execute to daisyBill clients as mandated by California law.

$547,146
Penalty and Interest Balance Due
Total Penalty & Interest Due*
$582,692
Self-Executed Penalty & Interest Paid
$35,546
Penalty & Interest Balance Due
$547,146
Bill Transmission Year
Bill Count
EOR Receipt Count
EOR Missing Count*
Payment Late Count
Penalty Due
Interest Due
Total P&I Due
2019
15,849
11,977
76%
3,872
24%
944
8%
$38,011
$25,640
$63,652
2020
15,853
11,121
70%
4,732
30%
1,253
11%
$48,377
$37,074
$85,451
2021
19,581
13,562
69%
6,019
31%
1,465
11%
$60,655
$48,841
$109,497
2022
18,146
11,490
63%
6,656
37%
865
8%
$39,690
$41,759
$81,449
2023
26,246
23,427
89%
2,819
11%
1,805
8%
$72,123
$29,991
$102,114
2024
39,561
38,867
98%
694
2%
2,208
6%
$86,231
$18,592
$104,823
2025
20,231
19,654
97%
577
3%
966
5%
$32,242
$3,465
$35,707
Total
155,467
130,098
84%
25,369
16%
9,506
7%
$377,329
$205,363
$582,692

Once a bill payment is 45 calendar days overdue, daisyBill calculates Penalty and Interest amounts owed. Total P&I Due may slightly overstate the amount owed by Hartford in the instances where the underlying employer is a government employer, as California allows government employers 60 calendar days to timely reimburse workers' comp bills.

*EOR Missing Count reflects the instances where Hartford failed to electronically send the provider an EOR, therefore, daisyBill could not calculate whether P&I is due for these e-bills where the EOR is missing. Data updates daily.

Although daisyBill makes every effort to ensure our information is accurate, we assume no responsibility or liability for any errors or omissions in the content of this site, directory, or blog. The information contained in this site is provided on an "as is" basis with no guarantees of completeness, accuracy, usefulness or timeliness. All data on this website is subject to change without notice to improve function, reliability, design, or otherwise. Visitors to this website should take all steps necessary to ascertain that information you receive from this website is correct and has been verified.