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

2,065
Total Provider Count
11,686
Total Injury Count
80,422
Total Bill Count
e-Bill
Bill Delivery
2%
Duplicate Bill %
7
Avg Days To Pay

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 *
8.4
Interpreter
6.3
Medical-Legal
7.9
Facility *
8.2
Copy Service
16.1

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.

78%
Official Medical Fee Schedule (OMFS)
OMFS Reimbursement Due
$4,050,417
100.0%
Hartford Reimbursement Reduction
$873,353
21.6%
Hartford Reduced Reimbursement
$3,177,064
78.4%

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.

X12 837 e-Bill Acceptance

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%
X12 837 EDI Compliant
Bill Transmission
Original Bill
Second Review Appeal
Total
X12 837 EDI Compliant
837 Accept
36,981
92%
6,501
81%
43,482
91%
Yes
837 Not Accept
3,028
8%
1,516
19%
4,544
9%
No

X12 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.

98%
X12 277 Timeliness Compliant
Bill Transmission
Original Bill
Second Review Appeal
Total
X12 277 Timeliness Compliant
277 Receipt 2 Working Days
36,074
98%
6,314
98%
42,388
98%
Yes
277 Missing
2
0%
0
0%
2
0%
No
277 Receipt 3+ Working Days
716
2%
136
2%
852
2%
No

X12 277 Acknowledgement - Invalid e-Bill Rejections

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

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

STC 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 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.

77%
X12 277 STC Compliant
Bill Transmission
Original Bill
Second Review Appeal
Total
X12 277 STC Compliant
277 Accept
28,983
79%
4,453
69%
33,436
77%
Yes
277 Reject
55
0%
0
0%
55
0%
Yes
STC Not Applicable - 277 Missing
2
0%
0
0%
2
0%
Yes
STC Invalid - Reject Second Review
0
0%
1,997
31%
1,997
5%
No
STC Invalid - Reject Injury Claim Valid
1,587
4%
0
0%
1,587
4%
No
STC Invalid - Reject Category/Code
6,165
17%
0
0%
6,165
14%
No

X12 835 Explanation of Review

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.

91%
X12 835 Compliant
X12 EDI Standard
Original e-Bill
Second Review Appeal
Total
X12 835 Compliant
835 Receipt 15 Working Days
26,550
91%
3,908
87%
30,458
91%
Yes
835 Missing
536
2%
70
2%
606
2%
No
835 Late
166
1%
494
11%
660
2%
No
835 Invalid Data
1,843
6%
13
0%
1,856
6%
No

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.

$463,428
Penalty and Interest Balance Due
Total Penalty & Interest Due*
$489,955
Self-Executed Penalty & Interest Paid
$26,527
Penalty & Interest Balance Due
$463,428
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
11,094
70%
4,759
30%
1,226
11%
$47,002
$32,814
$79,816
2021
19,581
13,523
69%
6,058
31%
1,424
11%
$57,778
$41,858
$99,635
2022
18,146
11,465
63%
6,681
37%
807
7%
$35,073
$33,358
$68,431
2023
26,246
23,414
89%
2,832
11%
1,687
7%
$66,840
$23,661
$90,501
2024
39,561
38,852
98%
709
2%
1,881
5%
$69,402
$10,301
$79,703
2025
8,545
8,175
96%
370
4%
333
4%
$7,546
$671
$8,217
Total
143,781
118,500
82%
25,281
18%
8,302
7%
$321,651
$168,303
$489,955

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.