Claims-Made vs. Occurrence Policies for PAs: Which Is Right for You?

The Two Policy Types Explained

Every malpractice insurance policy for physician assistants falls into one of two structural categories: claims-made or occurrence. This distinction determines one critical thing — whether you remain protected for past patient encounters after your policy ends.

Understanding this difference is not optional. It is the single most consequential decision in your PA malpractice coverage, affecting your financial exposure for years or even decades after you stop practicing.

• Claims-made: Covers claims that are reported while the policy is active. If you treated a patient in 2024 and that patient files a lawsuit in 2027, you are only covered if you still have an active claims-made policy (or purchased tail coverage) when the claim arrives.
• Occurrence: Covers incidents that occurred while the policy was active, regardless of when the claim is filed. If you treated a patient in 2024 under your 2024 occurrence policy, that incident is covered forever — even if the claim comes in 2030 and you have long since left the practice.

This matters because malpractice claims move slowly. The average time from clinical incident to formal claim filing is 16 to 24 months. For surgical PAs, the window can extend longer. For PAs who treat pediatric patients, the exposure period can stretch years, as minors in many states can file claims until they reach adulthood plus a statute of limitations period.

Claims-Made Coverage: A Deep Dive for PAs

Claims-made is the more complex of the two policy structures, and it is the type most PAs encounter first — because most employer-sponsored group policies use it.

How Claims-Made Premiums Work

Claims-made policies start with significantly lower premiums than occurrence policies. This is because, in year one, the insurer’s exposure is limited: only incidents from that first year can generate claims, and there has not been enough time for most claims to develop.

Each subsequent year, the insurer’s exposure grows — more past patient encounters, more potential claims. To reflect this increasing risk, your premium increases annually over a 4-to-5-year period until it reaches what insurers call the “mature” rate. At maturity, your claims-made premium will be roughly comparable to (and sometimes higher than) an equivalent occurrence premium.

The Retroactive Date

Every claims-made policy has a retroactive date — the earliest date from which prior incidents are covered. Incidents before this date are excluded, even if the claim is filed during the active policy period.

When you first purchase a claims-made policy, your retroactive date is typically your policy start date. If you switch carriers but maintain a claims-made policy, the new carrier may agree to “pick up” your original retroactive date, providing continuous coverage for past incidents. If they do not, you face a gap.

PA-Specific Risk: Supervising Physician Changes

When your supervising physician changes — whether they leave the practice, retire, or you move to a new supervisory agreement — verify that your claims-made policy’s retroactive date and coverage continuity are unaffected. If you were covered under your supervisor’s group policy, their departure may create a gap in your coverage for incidents that occurred during their supervision. Get written confirmation from the insurer that your coverage continues without interruption.

The Active Policy Requirement

The defining feature of claims-made coverage: a claim must be reported while your policy is in force. If your policy lapses, is canceled, or ends when you leave a job, and a claim arrives after that — you are uninsured for that claim, even if the underlying incident happened while you were covered.

This creates a structural problem every time a PA changes jobs, retires, takes a leave of absence, or loses employment. The solution is tail coverage, which we cover in detail below.

Most Employer Group Policies Are Claims-Made

If your employer provides malpractice coverage, it is almost certainly a claims-made policy. Insurers prefer this structure for group policies because it limits exposure and keeps initial group premiums competitive. The trade-off is transferred to you: when you leave, you inherit the tail coverage problem.

Occurrence Coverage: A Deep Dive for PAs

Occurrence coverage is structurally simpler and, for most individual PAs, more protective over the course of a career.

How Occurrence Premiums Work

Occurrence premiums are higher from day one — typically 15-25% more than a comparable first-year claims-made premium. However, occurrence premiums remain relatively flat over time, because the insurer prices in the full long-tail risk upfront.

This means you pay more in year one, but you avoid the year-over-year premium escalation of claims-made policies. And critically, you never pay for tail coverage.

No Tail Coverage Needed — Ever

This is the most significant advantage of occurrence coverage. When your policy period ends — whether you change jobs, retire, take a sabbatical, or switch careers entirely — every incident that happened during that policy period remains covered forever. No additional purchase required.

For PAs who change jobs frequently, work locum tenens assignments, or plan to retire in the foreseeable future, this eliminates one of the most expensive and stressful aspects of malpractice insurance management.

Why Occurrence Is Preferred by Many PAs

• Job changers: PAs change positions more frequently than many other providers, often shifting between practice settings, specialties, and supervisory arrangements. Each transition under a claims-made policy triggers a tail coverage question. Occurrence eliminates this entirely.
• Simpler long-term management: No retroactive dates to track, no tail purchases to budget for, no gaps to monitor between policies.
• Supervisory independence: Your occurrence coverage is yours. It does not depend on your supervising physician’s policy, practice affiliation, or employment status.

Side-by-Side Comparison

Who Pays for Tail? Negotiate Before You Start

This is one of the most consequential details in your employment contract — and one of the most commonly overlooked. The time to negotiate tail coverage responsibility is before you accept the position, not when you resign.

Ask these questions during the offer stage:

1. Is the malpractice coverage claims-made or occurrence?
2. If claims-made, who pays for tail when I leave — the employer or me?
3. Does the employer pay tail in all circumstances (voluntary resignation, termination, layoff)?
4. What tail duration does the employer pay for (1-year, 3-year, or permanent)?
5. Is tail coverage responsibility written into the employment contract?

Get the answers in writing. Verbal promises about tail coverage are not enforceable. Many PAs discover during their exit that the tail policy they were promised was never formalized.

The Nose Coverage Alternative

When switching from one claims-made carrier to another, you have an alternative to buying tail from the old carrier: nose coverage (also called Prior Acts coverage) from the new carrier.

Instead of purchasing tail from Carrier A, you ask Carrier B to set your retroactive date back to when your Carrier A coverage began. This effectively covers the same prior incidents — from the new policy side. Nose coverage is often less expensive than tail and can simplify the transition. Ask your broker to compare both options when switching carriers.

PA-Specific Considerations

Physician assistants face several unique coverage dynamics that general malpractice guides do not address. These PA-specific factors should weigh heavily in your claims-made vs. occurrence decision.

Surgical PAs: Longer Claim Discovery Periods

PAs in surgical specialties — orthopedics, general surgery, neurosurgery, cardiothoracic — routinely assist in procedures where complications may not manifest for months or years. A surgical site infection that leads to chronic complications, a hardware failure discovered 18 months post-op, or nerve damage that develops gradually all create extended exposure windows.

Occurrence coverage is particularly valuable here. The incident date, not the claim date, determines coverage. Under a claims-made policy, you would need continuous coverage (or tail) stretching potentially years after the procedure to be protected.

Locum Tenens PAs: Avoiding Coverage Gaps

PAs who work locum tenens (temporary) assignments face a unique challenge: gaps between assignments. If you have a claims-made policy that lapses between assignments, every patient you treated during the previous assignment is unprotected for claims filed during the gap.

Occurrence coverage eliminates this problem entirely. Each assignment period is permanently covered regardless of whether you have active insurance between assignments. For locum tenens PAs, occurrence is not just preferable — it is nearly essential.

Supervisory Agreement Changes

PAs who practice under supervisory or collaborative agreements face a risk that is unique to the PA profession. When your supervising physician changes — whether they leave the practice, retire, or you transition to a new supervisory relationship — your claims-made coverage may be affected.

If you were covered under your supervisor’s group claims-made policy, their departure can create a gap for incidents that occurred during their supervision period. The new supervisor’s policy may not pick up prior acts coverage for incidents under the previous arrangement.

An individual occurrence policy you own independently eliminates this risk entirely. It follows you, not your supervisor.

OTP-State PAs: Added Protection

PAs in Optimal Team Practice (OTP) states — where PAs can practice with greater autonomy under collaborative agreements rather than direct supervision — carry greater individual liability exposure. With increased autonomy comes increased accountability, and occurrence coverage provides a stronger safety net for PAs operating with expanded scope.

Frequent Practice Setting Changes

PAs commonly move between practice settings: hospital to outpatient clinic, primary care to urgent care, private practice to academic medicine. Each transition under a claims-made policy creates a coverage transition event. Occurrence coverage provides continuity that transcends any single practice setting.

Decision Framework: When to Choose Each

Use this framework to match your career situation to the right policy type:

Bottom Line: If you have the choice, occurrence coverage is almost always the better long-term value for PAs. The slightly higher annual premium eliminates tail coverage costs, gap risks, and the complexity of tracking retroactive dates across career transitions.