Directory · Connecticut · Medical malpractice

Who writes medical malpractice in Connecticut

Top insurer groups from the NAIC market share report; the state's list carries no lines of authority.

Mcic Vt A Recip Rrg wrote the most medical malpractice in Connecticut in 2025, $130.7M and 49.1% of the state's premium; the top five groups hold 78%. Connecticut's company list doesn't say which lines each company is licensed for, so the ranking below is the NAIC's top 10 groups; every licensed company is on the Connecticut page.

By Sam Alishahi, independent insurance broker · All lines in Connecticut

Top 10 · NAIC table: 11.1, 11.2 - Medical Professional Liability

The insurer groups that write the most medical malpractice in Connecticut

Top 10 insurer groups by direct premium written in 2025, from the NAIC's Market Share Reports for Property/Casualty Groups and Companies by State. A group is the parent and its insurance companies together; share is the group's part of the state total for the line; loss ratio is losses incurred over premium earned.

#	Insurer group	Premium written	Share	Loss ratio	Member companies here
1	MCIC Vermont, Inc. (A Risk Retention Group)	$130.7M	49.14%	119%	—
2	Integris Group	$23.4M	8.81%	22%	Integris Assurance Company, Integris Insurance Company, Integris Risk Retention Group, Inc.
3	Coverys Group	$18.6M	6.98%	57%	Preferred Professional Insurance Company, ProSelect Insurance Company, Coverys Specialty Insurance Company, Coverys Risk Retention Group, Inc.
4	Berkshire Hathaway Group	$17.7M	6.67%	66%	GEICO General Insurance Company, GEICO Texas County Mutual Insurance Company, GEICO County Mutual Insurance Company, Government Employees Insurance Company
5	Cna Insurance Group	$16.2M	6.10%	90%	Continental Casualty Company, Continental Insurance Company, (The), American Casualty Company of Reading, Pennsylvania, National Fire Insurance Company of Hartford
6	Liberty Mutual Group	$9.2M	3.47%	126%	Safeco Insurance Company of America, Liberty Insurance Underwriters, Inc., Liberty Mutual Fire Insurance Company, Liberty County Mutual Insurance Company
7	Doctors Co. Group	$5.0M	1.87%	94%	Doctors' Company (The), An Interinsurance Exchange, The Doctor's Management, TDC Specialty Insurance Company, TDC National Assurance Company, Doctors Company Risk Retention Group, A Reciprocal Exchange, The
8	Mag Mutual Insurance Group	$4.7M	1.78%	157%	MAG Mutual Insurance Company, Professional Security Insurance Company, MD Advantage Insurance Company of New Jersey
9	Health Care Industry Liability Reciprocal Insurance Company, A Risk Retention Group	$3.4M	1.29%	54%	—
10	Proassurance Corporation Group	$3.0M	1.12%	5%	NORCAL Insurance Company, ProAssurance Indemnity Company, Inc., ProAssurance Insurance Company of America, Allied Eastern Indemnity Company

Turned down?

Last resort for medical malpractice in Connecticut

Last resort	Lines	Where	How to get in
Surplus lines and Lloyd's open market	all	all states, under each state's diligent-search rules	Through surplus lines wholesalers; commercial property and liability have no guaranteed plan, so this is their last step	Source

Method and source

Source: the Connecticut insurance regulator company list, read 2026-10-18 and the surplus lines list. CT Insurance Department PDF 'List of Licensed Insurance Companies, Approved/Accredited Reinsurers and Surplus Lines Insurers in Connecticut' as of September 30, 2026. One document covers everything: 'admitted' here is every row whose company type is not 'Excess and Surplus Lines', with the type kept as given so the merge can filter (type == 'Property Casualty' for admitted P&C; 'Life plus Accident and Health', 'Title', 'Fraternal Benefit Society', 'Health Care Centers', 'Mortgage Guaranty' are other lines; 'Accredited', 'Reciprocal Jurisdiction', 'Reinsurance', 'Trusts', 'Pools' rows are reinsurers/trusts, not licensed primary insurers). No lines of authority are published, so 'lines' is always [] and 'since' is always ''. Company names are clipped at the PDF column width (roughly 40 characters, e.g. 'Accident Fund Insurance Company of'), so match on NAIC code; alien insurers, pools and reciprocal-jurisdiction reinsurers carry no NAIC code. Surplus lines 'eligible' date is not published. Type counts: Property Casualty=857, Life plus Accident and Health=386, Excess and Surplus Lines=265, Reciprocal Jurisdiction=63, Accredited=44, Fraternal Benefit Society=34, Title=21, Reinsurance (Property-=20, Certified Reinsurer=18, Trusts=14, Mortgage Guaranty=14, Health Care Centers=13, Pools and Associations=10, Pool=8, Reinsurance (Life)=8, Domicile w/ Similar Statutes=3 "Premium" is direct premium written in the state for the year shown; "share" is that company's part of the state total for the line. A company can be licensed for a line and write none of it, and a surplus lines insurer can write a line without a state license for it.

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