When must an insurer provide notice to the insured regarding a medical claim?

The correct answer highlights an important regulatory requirement regarding the handling of medical claims by insurers. Providing notice within a specific timeframe after the occurrence of an accident is crucial for both the insurer and the insured. This requirement ensures timely communication, allowing the insured to stay informed about the status of their claim.

In general, when an accident occurs, prompt notification helps facilitate the claims process, ensuring that the necessary information is gathered and assessed swiftly. This timeframe usually aligns with industry standards meant to protect the rights of the insured.

The other options do not align with the common practices or regulations surrounding claims processing. For instance, notifying the insured on the policy anniversary doesn't address the need for immediate communication related to a medical claim resulting from an accident. Similarly, providing notice only after a policy has been in force for 30 days fails to consider the urgency of claims arising from accidents. Lastly, requiring notice within 15 days of claim submission would not accurately reflect the need to tie the notice requirement directly to the occurrence of the accident itself, which is critical for timely rectification of any issues or concerns regarding the claim.