MPL Carrier Explorer
Top 20 Carrier Profiles + Coverys Subsidiaries — Medical Professional Liability Market Intelligence
| Rank ↑ | Carrier | Type | 2024 DPW | Mkt Share | 2Y Chg | Loss Ratio | Profile |
|---|
Market Dashboard
Medical Professional Liability market analytics from NAIC statutory filings (2016–2024)
Market Growth
Total direct premiums written, 2016–2024
Market Concentration
Top 5, Top 10, and Top 20 share of total premium
Biggest Movers
Largest premium changes, 2022 → 2024
Top 20 Carriers by 2024 DPW
Direct premiums written. Coverys Group highlighted.
Notable Developments — 2023–2025
Key market events affecting the top 20 MPL carriers
| Carrier | Year | Development | Impact / Significance | Source |
|---|---|---|---|---|
| The Doctors Company | 2025 | Completed $1.3B acquisition of ProAssurance | Combined entity becomes #2 nationally; reshapes top-5 market concentration | Published financial statements |
| Curi Holdings | 2023 | Merged with Constellation Insurance Companies | DPW surged 135% (2022→2024); jumped from #14 to #9 in rankings | NAIC Market Share Report |
| MagMutual | 2023 | Acquired MDAdvantage Insurance (NJ); launched MyDefense model | Expanded geographic footprint; moved from #7 to #5 in rankings | Company announcements |
| MCIC Vermont | 2024 | Loss ratio of 105.3% | Significantly above industry average of 52.9%; signaling reserve strengthening | NAIC statutory filings |
| Core Specialty | 2024 | New entrant to top 20; AM Best upgrade to A | Loss ratio of 124.4% reflects rapid growth phase; watch for normalization | AM Best, NAIC filings |
Loss Ratios by Carrier
Direct loss to earned premium ratio (2024). Industry average: 52.9%
Market Loss Ratio Trend
Source: NAIC Statutory Filings — Direct Loss Ratio
Carrier Summary Card
Select a carrier to view a compact summary with DPW trend and rank
Data: NAIC 2025 Market Share Report via Agency Checklists (2024 DPW) | NAIC 2023 Report (2022 DPW) | NAIC Med Mal Report (Historical)
Metric Definitions
Glossary of key metrics used in the MPL Carrier Explorer
| Metric | Definition |
|---|---|
| Direct Premiums Written (DPW) | Total premium written for MPL policies. This is the broadest measure of a carrier's MPL business volume. Competitive use: Compare DPW across carriers to gauge relative market share and growth trajectory. |
| Earned Premium | Portion of written premium recognized for coverage actually provided during the period. Earned premium is the basis for loss ratio calculations. Competitive use: Earned premium reflects the actual risk exposure in-force during a period, smoothing out timing differences in when policies are written. |
| YoY DPW Change | (Current-year DPW / Prior-year DPW) - 1, expressed as a percentage. Measures year-over-year growth. Note: MPL data uses 2-year change (2022→2024) since the current data has these two benchmark years.Competitive use: High positive YoY signals aggressive growth or successful rate increases; sharp negative YoY may indicate market contraction or competitive pressure. |
| Direct Loss Ratio | Incurred losses (paid + case reserves) divided by earned premium, expressed as a percentage. The 2024 industry average for MPL is 52.9%. Competitive use: Loss ratio is the key indicator of underwriting profitability. Rising loss ratios signal claims outpacing premium growth, which may drive rate hardening. |
| Market Share | Carrier's DPW as a percentage of total market DPW. Shows relative market position. Competitive use: Track market share changes over time to identify carriers gaining or losing market position relative to peers. |
| NAIC Rank | Carrier ranking by DPW from NAIC statutory filings, as compiled in the NAIC Market Share Report. Competitive use: Track rank changes over time to identify carriers gaining or losing market position — rank movement often leads changes visible in DPW. |
| Rank Change | Change in NAIC ranking between years. prior_year_rank - current_year_rank. Positive = improved.Competitive use: Large rank jumps (e.g., +5 or more) often signal strategic moves — acquisitions, mergers, or market expansion. |
| 9-Year CAGR | Compound annual growth rate of total MPL market premium from 2016 to 2024. Reflects the overall market expansion trajectory. Competitive use: Compare individual carrier growth rates against the market CAGR to identify outperformers and underperformers over the long term. |
MPL Sunday Paper
Weekly MPL Market Intelligence Briefing
The MPL Sunday Paper is a weekly actuarial intelligence briefing covering the Medical Professional Liability market. Each edition delivers curated analysis of carrier movements, regulatory changes, market trends, and strategic insights — written for insurance professionals who need to stay ahead of the curve.