Directory · West Virginia · Medical malpractice

Who writes medical malpractice in West Virginia

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

Mag Mutual Insurance Group wrote the most medical malpractice in West Virginia in 2025, $30.3M and 38.6% of the state's premium; the top five groups hold 67%. West Virginia'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 West Virginia page.

By Sam Alishahi, independent insurance broker · All lines in West Virginia

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

The insurer groups that write the most medical malpractice in West Virginia

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	Mag Mutual Insurance Group	$30.3M	38.56%	104%	MAG Mutual Insurance Company, Professional Security Insurance Company, MD Advantage Insurance Company of New Jersey
2	Berkshire Hathaway Group	$9.3M	11.82%	22%	GEICO General Insurance Company, GEICO Texas County Mutual Insurance Company, GEICO County Mutual Insurance Company, Government Employees Insurance Company
3	Cna Insurance Group	$6.5M	8.30%	36%	Continental Casualty Company, Continental Insurance Company, (The), American Casualty Company of Reading, Pennsylvania, National Fire Insurance Company of Hartford
4	Pace Rrg Inc	$3.6M	4.58%	4%	—
5	Health Care Industry Liability Reciprocal Insurance Company, A Risk Retention Group	$3.2M	4.10%	54%	—
6	American Excess Insurance Exchange, Risk Retention Group	$2.5M	3.12%	54%	—
7	Proassurance Corporation Group	$2.4M	3.00%	67%	NORCAL Insurance Company, ProAssurance Indemnity Company, Inc., ProAssurance Insurance Company of America, Allied Eastern Indemnity Company
8	Coverys Group	$1.6M	2.07%	17%	Preferred Professional Insurance Company, ProSelect Insurance Company, Coverys Specialty Insurance Company, Coverys Risk Retention Group, Inc.
9	Doctors Co. Group	$1.6M	2.03%	—	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
10	Wr Berkley Corporation Group	$1.6M	2.01%	15%	Berkley Assurance Company, Berkley National Insurance Company, Carolina Casualty Insurance Company, StarNet Insurance Company

Turned down?

Last resort for medical malpractice in West Virginia

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 West Virginia insurance regulator company list, read 2026-10-18 and the surplus lines list. Surplus lines: NAIC SBS 'Company List Report' PDF (Company Type=Surplus Lines, Status=Active, report date 07-16-2026, issue dates through 06-30-2026) linked from https://www.wvinsurance.gov/company-home as 'List of Surplus Lines Insurers (as of 6/30/2026)'. The PDF has no text layer; pages rendered at 300 dpi, turned upright and OCR'd with macOS Vision (whole page plus one pass per table row), cells located by the PDF's own ruling lines. Report states 245 companies; parsed 245. No per-company eligibility date is printed (eligible=''). Alien insurers mostly have no NAIC code in the report (naic=''). Long names are truncated by the report itself. Columns not carried into WV.json (FEIN, org type, group number, state legacy ID, status) are in wv_surplus_rows.csv. Admitted: West Virginia publishes no bulk roster of licensed P&C insurers (only company-type counts and the one-at-a-time NAIC SBS lookup), so admitted is empty. "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.

Open to use. Cite "Alishahi Insurance insurance company directory" and link here. CSV · JSON.

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