Key Takeaways
- Occurrence policies cover incidents that happen during the policy period — regardless of when the claim is filed. Claims-made policies only cover claims filed while the policy is active.
- Occurrence coverage is the gold standard for NPs: it follows you forever with no tail policy needed.
- Claims-made is cheaper upfront, but tail coverage can cost 150–200% of your annual premium — eliminating the savings.
- Most employer-sponsored group policies are claims-made. If you leave, you may need to buy tail or lose coverage for prior incidents.
- When you have a choice, occurrence is almost always the better long-term value for individual NP policies.
The Core Difference: When Does Coverage Trigger?
The single most important structural decision in your malpractice policy is whether it is occurrence-based or claims-made. This determines whether you are protected for an incident years after your policy has ended.
- Occurrence policy: You see a patient on March 15, 2024. That visit is covered by your 2024 policy. If that patient files a claim in 2027 — even after your policy lapsed — you are still covered for that 2024 visit.
- Claims-made policy: You see the same patient on March 15, 2024. If you no longer have an active policy (or tail coverage) when the claim arrives in 2027, you are not covered — even though the visit occurred while you were insured.
This distinction is not a technicality. Medical malpractice claims are notoriously slow. The average time from incident to claim filing is 16 to 24 months. In specialties involving children, it can be longer — a minor patient has until their 18th birthday to file in many states, plus a statute of limitations period after that.
Occurrence Coverage: How It Works
Occurrence coverage is the cleaner, more protective policy structure for individual NP practitioners:
- Coverage for any incident that occurred during your policy period, regardless of when a claim is filed
- No need to purchase tail coverage when you change jobs, retire, or take a leave of absence
- Long-term peace of mind — your 2024 policy protects 2024 incidents, period
The premium for occurrence coverage is typically 15–25% higher than a comparable claims-made policy in the first year. However, when you factor in the cost of tail coverage at the end of a claims-made policy (typically 150–200% of the annual premium), occurrence is almost always the better financial value over a 5–10 year period.
Industry Note: NSO and Proliability both offer occurrence-based individual NP policies. When evaluating any policy, explicitly ask: “Is this an occurrence or claims-made policy?”
Claims-Made Coverage: How It Works
Claims-made is common in group/employer-sponsored policies because it is cheaper to underwrite. Key mechanics:
- Retroactive date: The date from which prior incidents are covered. Incidents before this date are not covered.
- Active policy required: A claim must be filed while your policy is in force — or during an extended reporting period (tail).
- Tail coverage: When your policy ends, you can purchase an Extended Reporting Period (ERP) to cover claims that come in after the policy ends for incidents that happened while it was active.
The Real Cost of Tail Coverage
Tail coverage typically costs:
- 1-year tail: 75–100% of your annual premium
- 3-year tail: 100–150% of your annual premium
- Unlimited/permanent tail: 150–200% of your annual premium
If your annual premium grew to $1,400/year over 5 years, a permanent tail could cost $2,100–$2,800 — a lump sum due when you leave. Many NPs discover this cost when they resign and are blindsided.
The Employer Coverage Trap
Most employer group policies are claims-made. When you leave — voluntarily or not — your coverage ends. Without tail coverage, you are exposed for every patient you saw during employment.
Who pays for the tail? It varies dramatically. Some employers purchase tail for departing employees; many do not. Ask explicitly before you accept a job: what happens to your malpractice coverage if you leave?
Which Type Should You Choose?
| Situation | Recommended Policy Type |
|---|---|
| Buying your own individual policy | Occurrence (strongly preferred) |
| Employer offers group coverage only | Accept employer coverage, add individual occurrence policy |
| You move jobs frequently | Occurrence (avoids repeated tail purchases) |
| Planning to retire or leave practice | Occurrence (no tail needed) |
| Claims-made is your only option | Buy claims-made — but budget for tail at exit |
Questions to Ask Before You Buy
- Is this an occurrence or claims-made policy?
- If claims-made: what is my retroactive date?
- If claims-made: what does tail coverage cost, and is it available?
- Does my employer purchase tail for departing employees?
- If I have both employer and individual coverage, which responds first?
Bottom Line: If you have the choice, choose occurrence. Pay the slightly higher annual premium and never worry about tail coverage again. Over a 20-year career, it is almost always the more economical and more secure choice.
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