Best's Review

AM BEST'S MONTHLY INSURANCE MAGAZINE



Best's Rankings
US Medical Professional Liability — 2021 Direct Premiums Written — 2022 Edition

Insurers were ranked by 2021 direct premiums written.
  • August 2022

($ Thousands)

2021
Rank
2020
Rank
Company/Group AMB# 2021
Direct
Premiums
Written
%
Change in
Premiums
Market Share (%) Adjusted Loss Ratios % of
Company
Premiums
2021 2020 2019 2021 2020 2019
1 1 Berkshire Hathaway Ins 000811 $1,944,101 13.4 17.3 16.8 16.9 48.7 48.0 55.3 3.8
2 2 Doctors Co Ins Group 018083 1,070,669 11.2 9.6 9.4 9.4 47.1 45.9 43.0 84.2
3 3 ProAssurance Group 018559 739,157 -7.2 6.6 7.8 8.8 56.2 58.4 78.7 70.3
4 4 CNA Ins Cos 018313 638,680 4.9 5.7 6.0 5.7 50.3 70.4 59.5 5.1
5 5 Coverys Companies 018359 574,677 10.0 5.1 5.1 5.0 65.7 74.0 63.0 75.5
6 7 MAG Mutual Companies 018940 417,943 13.2 3.7 3.6 3.4 55.4 55.8 98.7 90.0
7 6 MCIC Vermont (A RRRG) 012014 384,988 -9.4 3.4 4.2 4.1 94.6 85.9 105.9 96.0
8 8 Liberty Mutual Ins Cos 000060 307,729 17.1 2.7 2.6 2.2 71.5 72.4 36.8 0.7
9 13 Chubb INA Group 018498 201,437 33.2 1.8 1.5 1.4 103.8 144.9 38.9 0.7
10 9 Constellation Ins Group 018840 187,775 8.7 1.7 1.7 1.7 36.9 56.0 63.8 94.0
11 14 W. R. Berkley Ins Group 018252 184,835 26.6 1.7 1.4 1.3 47.0 47.9 46.8 2.2
12 11 ISMIE Mutual Group 018644 173,748 4.5 1.6 1.6 1.6 54.3 50.9 43.5 98.8
13 10 PRI Group 018957 167,227 -1.5 1.5 1.7 1.7 48.8 15.9 -32.7 98.5
14 12 Controlled Risk Ins Co of VT, Inc 011814 167,011 1.6 1.5 1.6 1.7 52.8 63.4 60.6 90.3
15 15 Curi Hldgs Group 018072 159,592 14.4 1.4 1.4 1.5 37.9 43.6 42.8 100.0
16 16 Alleghany Corp Group 018640 153,834 14.6 1.4 1.3 1.3 34.8 55.9 49.2 5.8
17 18 State Volunteer Mutual Ins Co 003706 121,872 7.2 1.1 1.1 1.2 27.2 24.1 35.5 99.9
18 17 Physicians Ins Mutual Group 018103 118,435 -6.2 1.1 1.2 1.1 54.8 57.7 53.3 86.0
19 21 Fairfax Financial (USA) Group 003116 117,749 25.1 1.1 0.9 0.8 45.9 76.4 57.3 1.2
20 19 COPIC Ins Group 018866 115,876 13.0 1.0 1.0 0.9 44.6 34.6 45.8 97.6
21 20 NCMIC Group 018579 99,545 2.7 0.9 1.0 1.0 49.1 47.2 30.7 76.1
22 23 Markel Corp Group 018468 96,367 13.0 0.9 0.8 0.9 37.7 41.2 65.5 1.3
23 24 Natl Group 018249 95,183 14.7 0.9 0.8 1.0 32.0 33.7 21.1 100.0
24 26 Medical Mutual Group (MD) 005006 93,466 22.5 0.8 0.8 1.0 63.1 59.0 23.7 99.6
25 22 Mutual Ins Co of Arizona Group 018867 89,041 4.2 0.8 0.8 0.9 50.0 51.4 30.3 100.0
Top 25 Writers $8,420,937 8.4 75.1 76.2 76.7 54.0 57.1 57.4 5.1
Total U.S. P/C Industry $11,214,989 10.0 100.0 100.0 100.0 55.2 57.5 58.1 1.4

Note: Data for some companies in this report has been received from the NAIC.

Reflects Grand Total (includes Canada and U.S. Territories).

Source: BestLink logo — State/Line (P/C Lines) - P/C, US; data as of June 9, 2022



Want More News From Best's Review?

Sign up for our Best's Review Newsletter and we'll send you featured news stories straight to your inbox.

Subscribe

Back to Home