Top Medical Malpractice Insurance Companies 2025

Compare Carriers, Coverage & Reviews

Expert analysis of leading malpractice insurance companies. Compare coverage options, financial ratings, and physician reviews to find the right carrier for your practice. Featured partner: Nexus Insurance Services.

9
Top Carriers Reviewed
800K+
Physicians Covered
$9.8B
Market Premiums 2024
90%+
Win Rate Leaders

Featured Partner: Nexus Insurance Services

As your trusted malpractice insurance broker, we work with all top-rated carriers to find you the best coverage at competitive rates. Established in 2004, we've helped over 50,000 healthcare professionals protect their practices.

Compare Top Malpractice Insurance Companies

CompanyAM Best RatingMarket ShareKey StrengthCompare
Nexus Insurance Services
Featured Partner
A+ (Superior)
Leading Broker
Expert broker with access to multiple A-rated carriers
MedPro Group
A++ (Superior)
20% (Market Leader)
90% trial win rate, 80% closed without payment
The Doctors Company
A (Excellent)
15%
Nation's largest physician-owned insurer
Coverys
A (Excellent)
8%
Data analytics for risk prevention
ProAssurance Group
A (Excellent)
12%
Acquired NORCAL in 2020
ISMIE
A- (Excellent) - Stable Outlook
3%
92% trial win rate
MagMutual Insurance
A (Excellent)
4%
Georgia's top malpractice carrier
CNA Financial
A (Excellent) - Stable Outlook
6%
Top 5 medical liability underwriter
Mutual Protection Trust (MPT)
A+ (Superior)
2% (California)
California's 2nd largest MPL provider
Featured Partner

Nexus Insurance Services

Since
2004
AM Best Rating
A+ (Superior)
Market Share
Leading Broker

Key Highlights

  • Expert broker with access to multiple A-rated carriers
  • Personalized service and competitive rates across all specialties
  • Specializes in hard-to-place risks and complex cases

Pros

  • Multiple carrier options for best rates and coverage
  • Dedicated account management and personalized service
  • Fast quote turnaround (same day)

Cons

  • Broker model (not direct carrier)
  • Coverage varies by carrier partner

MedPro Group

Since
1899
AM Best Rating
A++ (Superior)
Market Share
20% (Market Leader)
Trial Win Rate
90%

Key Highlights

  • 90% trial win rate, 80% closed without payment
  • Largest malpractice carrier (20% market share)
  • Warren Buffett's Berkshire Hathaway company

Pros

  • Strongest financial backing (A++)
  • Exceptional legal defense record
  • Consent to settle provision

Cons

  • Premium pricing due to market leadership
  • Selective underwriting standards

The Doctors Company

Since
1976
AM Best Rating
A (Excellent)
Market Share
15%

Key Highlights

  • Nation's largest physician-owned insurer
  • Member dividends when favorable
  • Extensive risk management resources

Pros

  • Physician-owned and governed
  • Excellent claims defense
  • Risk management CME credits

Cons

  • Higher premiums in some markets
  • Pending merger with ProAssurance (2026)
  • Transition period uncertainty

Coverys

Since
1998
AM Best Rating
A (Excellent)
Market Share
8%

Key Highlights

  • Data analytics for risk prevention
  • Multiple carrier platforms available
  • Strong regional presence

Pros

  • Advanced analytics platform
  • Proactive risk management
  • Multiple admitted carriers

Cons

  • Complex carrier structure
  • Regional focus limitations

ProAssurance Group

Since
1976
AM Best Rating
A (Excellent)
Market Share
12%

Key Highlights

  • Acquired NORCAL in 2020
  • Merging with The Doctors Company (2026)
  • Combined $12 billion assets post-merger

Pros

  • Growing market presence
  • Dividend programs available
  • Regional expertise (NORCAL brand)

Cons

  • Integration complexity
  • Multiple brand transitions
  • Merger uncertainty

ISMIE

Since
1976
AM Best Rating
A- (Excellent) - Stable Outlook
Market Share
3%
Trial Win Rate
92%

Key Highlights

  • 92% trial win rate
  • Physician-founded and led
  • Nationwide coverage from Chicago

Pros

  • Excellent trial defense record
  • Personalized physician service
  • Strong advocacy approach

Cons

  • Chicago-based operations
  • Smaller market presence
  • Regional focus despite nationwide coverage

2025 Market Update: Premium Increases & Market Changes

Premium Increases 2025

  • !46 of 50 states saw premium increases in 2025
  • !Hawaii: 50% increase - highest in the nation
  • !16 states had 10%+ increases
  • !49.8% of premiums rose year-over-year in 2025

Market Consolidation

  • +ProAssurance + The Doctors Company merger (2026)
  • +Combined $12 billion in assets post-merger
  • +MedPro Group maintains 20% market leadership
  • +No new major carriers entered market in 2025

What This Means for Physicians

With rising premiums and increasing consolidation, working with experienced brokers like Nexus Insurance Services becomes more valuable. We help navigate rate increases, find competitive alternatives, and ensure continuous coverage during market transitions.

Financial Strength Analysis

Understanding AM Best Ratings

A++, A+ (Superior)

Highest financial strength and claims-paying ability

Best Choice
A, A- (Excellent)

Strong financial position and operational performance

Recommended
B++, B+ (Good)

Adequate financial strength but may have vulnerabilities

Use Caution
B or Lower

Vulnerable financial position, higher risk

Avoid

Pro Tip: Choose carriers with A- or higher ratings for long-term security. Nexus Insurance Services works exclusively with A-rated carriers to ensure your protection.

How to Choose the Right Malpractice Insurance Company

7-Step Selection Process

  1. 1

    Verify Financial Stability

    Check AM Best ratings (A- or higher recommended) and review financial statements. Strong financial backing ensures claims payment ability. Companies like MedPro Group (A++) and The Doctors Company (A) offer superior financial strength.

  2. 2

    Evaluate Claims Support

    Look for 24/7 claims reporting, experienced defense attorneys, and consent to settle provisions. MedPro Group's 90% trial win rate demonstrates strong defense capabilities.

  3. 3

    Compare Coverage Options

    Ensure adequate limits ($1M/$3M minimum), tail coverage availability, and specialty-specific protections. Review policy exclusions carefully.

  4. 4

    Assess Risk Management Resources

    Quality carriers offer CME courses, practice assessments, and proactive risk prevention tools. Coverys excels with data analytics for risk prevention.

  5. 5

    Review Physician Satisfaction

    Check online reviews, ask colleagues, and review retention rates. High physician satisfaction indicates quality service and fair claims handling.

  6. 6

    Consider Geographic Presence

    Choose carriers with strong presence in your state. NORCAL Group excels in Western states, while ISMIE dominates Illinois.

  7. 7

    Compare Total Value

    Don't choose on price alone. Consider coverage quality, service level, and long-term stability. Working with a broker like Nexus Insurance Services can help you find the best value.

Warning Signs to Avoid

  • • AM Best rating below B+
  • • No consent to settle provision
  • • Limited claims support hours
  • • Frequent premium increases
  • • Poor physician reviews or high turnover
  • • Unclear policy language or hidden exclusions

Frequently Asked Questions

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