15. Chubb Ltd. Group | Direct premiums written: $152 million | Direct premiums earned: $151 million | Direct loss to EP ratio: 76.26 | Direct Loss & DCC to EP 95.62 | Market share: 1.65% | Cumulative market share: 63.52%
14. ISMIE Group | Direct premiums written: $153 million | Direct premiums earned: $165 million | Direct loss to EP ratio: 39.40 | Direct Loss & DCC to EP 63.22 | Market share: 1.66% | Cumulative market share: 61.87%
13. Controlled Risk Ins. Co. of Vermont RRG | Direct premiums written: $159 million | Direct premiums earned: $159 million | Direct loss to EP ratio: 56.06 | Direct Loss & DCC to EP 74.97 | Market share: 1.72% | Cumulative market share: 60.21%
12. MMIC Group | Direct premiums written: $166 million | Direct premiums earned: $162 million | Direct loss to EP ratio: 51.95 | Direct Loss & DCC to EP 76.21 | Market share: 1.80% | Cumulative market share: 58.49%
11. Liberty Mutual Group | Direct premiums written: $172 million | Direct premiums earned: $170 million | Direct loss to EP ratio: 50.05 | Direct Loss & DCC to EP 61.85 | Market share: 1.87% | Cumulative market share: 56.69%

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10. AJB Group | Direct premiums written: $174 million | Direct premiums earned: $184 million | Direct loss to EP ratio: 10.32 | Direct Loss & DCC to EP 34.04 | Market share: 1.89% | Cumulative market share: 54.83%
9. Hospitals Ins. Co., Inc. | Direct premiums written: $219 million | Direct premiums earned: $218 million | Direct loss to EP ratio: 24.00| Direct Loss & DCC to EP 36.25 | Market share: 2.37% | Cumulative market share: 52.94%
8. Mag Mutual Ins. Group | Direct premiums written: $287 million | Direct premiums earned: $277 million | Direct loss to EP ratio: 50.17 | Direct Loss & DCC to EP 80.34 | Market share: 3.10% | Cumulative market share: 50.57%
7. MCIC Vermont A Recip RRG | Direct premiums written: $340 million | Direct premiums earned: $340 million | Direct loss to EP ratio: 86.23 | Direct Loss & DCC to EP 99.16 | Market share: 3.68% | Cumulative market share: 47.47%
6. NORCAL Group | Direct premiums written: $342 million | Direct premiums earned: $339 million | Direct loss to EP ratio: 54.12 | Direct Loss & DCC to EP 71.72 | Market share: 3.70% | Cumulative market share: 43.79%

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5. Coverys Group | Direct premiums written: $446 million | Direct premiums earned: $437 million | Direct loss to EP ratio: 46.89 | Direct Loss & DCC to EP 86.14 | Market share: 4.83% | Cumulative market share: 40.09%
4. ProAssurance Corp. Group | Direct premiums written: $475 million | Direct premiums earned: $486 million | Direct loss to EP ratio: 46.55 | Direct Loss & DCC to EP 73.49 | Market share: 5.14% | Cumulative market share: 36.26%
3. CNA Insurance Group | Direct premiums written: $529 million | Direct premiums earned: $530 million | Direct loss to EP ratio: 52.58 | Direct Loss & DCC to EP 66.94 | Market share: 5.72% | Cumulative market share: 30.12%
2. Doctors Co. Group | Direct premiums written: $690 million | Direct premiums earned: $679 million | Direct loss to EP ratio: 45.22 | Direct Loss & DCC to EP 77.04 | Market share: 7.47% | Cumulative market share: 24.20%
1. Berkshire Hathaway Group | Direct premiums written: $1.5 billion | Direct premiums earned: $1.5 billion | Direct loss to EP ratio: 54.22 | Direct Loss & DCC to EP 68.57 | Market share: 16.93% | Cumulative market share: 16.93%

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Doctors, nurses, dentists and other healthcare professionals live by the Hippocratic oath: Do No Harm. But sometimes things go wrong, patients are injured and doctors are sued for malpractice. In those situations, medical professional liability insurance steps in to protect the healthcare professional from liability associated with wrongful practices that may result in bodily injury, medical expenses and property damage, as well as the cost of defending lawsuits related to such claims, as the National Association of Insurance Commissioners (NAIC) explains it.

Generally, a medical professional liability insurance policy covers bodily injury or property damage as well as liability for personal injury such as mental anguish. NAIC says that “The complexity involved in discovering negligence results in a higher percentage of premium dollars going toward defense and cost containment expenses. Medical liability insurers spend substantial funds investigating and defending claims where there is an adverse patient outcome not resulting from negligence.”

Policy price is a major factor in choosing medical malpractice carriers, but it’s not the only one. Medical professionals should also consider company history, peer referrals, and value-added services as online training, risk analysis and policy review.

Here is a look at the 15 medical malpractice carriers that rose to the top of that market in 2018, based on data from the NAIC.

Related:

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Top 15 medical malpractice insurance carriers in 2017, as ranked by the NAIC

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