California Malpractice Lawsuit: The 90-Day Notice Rule

For a patient in Hollywood or elsewhere in Los Angeles County, preparing a malpractice claim involves more than drafting a court complaint. California generally requires advance notice to the provider, and the notice clock must be considered alongside the statute of limitations. This guide explains the 90-day rule, its limited timing extension, and practical ways to document service without confusing notice with filing.

What the 90-day notice rule requires

Code of Civil Procedure § 364 generally requires the plaintiff to serve a health care provider with 90 days’ advance notice of intent to sue before filing a malpractice action. Notice is a pre-suit procedural step, not the complaint and not a court filing.

Treat the notice as its own deadline item. Record when it was served, which provider or defendant received it, and what proof documents the event. A draft, unconfirmed email, or informal conversation should not be treated as proof that statutory notice was completed.

Identify each potentially responsible provider and determine the proper recipient. If several providers may be involved, do not assume notice to one automatically addresses the others. Confirm the people and entities using records rather than relying on a facility brand alone.

The notice requirement does not prove negligence or preserve every claim automatically. It is one procedural step; the medical evidence and underlying limitations period remain separate issues.

How notice interacts with the one-year and three-year limits

Malpractice generally must be filed by the earlier of three years from injury or one year from discovery under Code of Civil Procedure § 340.5. The 90-day notice requirement under § 364 operates alongside that rule. Calendar the limitations dates and notice date separately.

If notice is served within the final 90 days of the limitations period, the verified rule extends the deadline 90 days from service. That timing provision is not a general extension for every notice and should not be treated as permission to wait until the last moment.

When injury or discovery dates are uncertain, it may also be uncertain whether the final-90-day provision applies. Keep evidence supporting each possible date and have the calculation reviewed. A calendar labeled only “lawsuit deadline” may hide which rule supplies the date.

Notice does not erase the § 340.5 analysis. Injury date, discovery date, and any narrow tolling issue remain important. If a minor or public entity is involved, identify that early because additional timing rules may require review.

Identify the proper provider and preserve service records

Make a list of health care providers and entities whose conduct may be relevant. Use names shown in the records and verify the relationship between an individual practitioner and a facility; a location or brand name may not identify the legal entity.

Keep the exact notice served and reliable evidence of when and how service occurred. Record recipient, method, date, and delivery confirmation. Maintain a separate calendar entry for when the 90-day notice period ends and when the underlying statute may expire.

When several providers are being reviewed, keep a separate entry for each notice and service event. A clear record helps confirm who received notice and whether timing was met. Do not merge details into one note that obscures dates.

If the recipient or method is unclear, get the question answered before relying on service. The verified facts establish a 90-day advance-notice rule but do not supply a complete service-method checklist for every situation; do not guess.

What notice does not do

Serving notice does not establish negligence. A malpractice claim still requires evidence that care fell below the standard of a reasonably prudent practitioner in the same field and caused injury; testimony from a practitioner qualified in the relevant field generally addresses both medical questions.

Notice does not decide when the one-year discovery period began or whether the three-year outer limit applies. Those questions arise under § 340.5. Do not assume that a notice letter resets the entire limitations period or removes the need to act promptly.

Notice is not the same as collecting records or consulting an qualified practitioner. Those may be important to evaluating a claim, but notice is a procedural communication to a provider. Preserve each category independently.

A notice letter is not a settlement promise or prediction. It is one part of a process that may lead to further investigation and contested positions. The sides may disagree about what happened, what caused injury, or whether the care met the standard.

A practical notice-and-deadline workflow

Create a timeline as soon as you suspect a claim. Include treatment dates, possible injury date, when the problem was discovered or reasonably could have been discovered, and important communications. Label facts confirmed, approximate, or unresolved.

Calculate the one-year and three-year dates under § 340.5, then calendar the 90-day notice period and any potential extension separately. If dates are close or disputed, seek prompt review instead of selecting the most favorable date without evidence.

Keep notice materials together: final version, recipient list, service proof, delivery records, and follow-up notes. Preserve original files; a cropped screenshot may omit a key date or recipient detail.

Bring these items to a first review:

• The injury and discovery timeline, including what was known and when.
• A list of every provider, specialty, facility, and legal entity if known.
• The current one-year and three-year calculations under CCP § 340.5.
• The notice copy and proof of service under CCP § 364.
• Any minor-patient or public-entity facts that may change the analysis.

After notice, continue preparing the claim

The notice period is not a reason to stop preserving evidence. Continue organizing the full chart, communications, bills, and observations. When records arrive, note their receipt date and add them to the index without changing the source files.

Use the time to clarify the qualified practitioner question and whether additional records are needed. Testimony from a practitioner qualified in the relevant field generally addresses the professional standard and causation; notice does not supply that medical analysis.

Continue tracking all dates until the next procedural step is confirmed. If multiple providers are under review, verify notice status separately for each. A separate calendar avoids mistaking the notice window for the underlying filing deadline.

Because §§ 364 and 340.5 operate together, ask how notice affects the calculated deadline in the specific matter. The verified rule provides a defined extension when service falls in the final 90 days, but application depends on the actual service and limitations dates.

Maintain a verifiable notice record

Create a service log when notice is sent. Record the version served, date, recipient, method, and available delivery confirmation. Keep records together instead of relying on later recollection about when a document was sent or received.

If multiple providers may be responsible, create a separate recipient entry for each. Notice to a facility and notice to an individual are not necessarily the same act. Identify each entity from records and confirm the intended recipient.

Calendar the end of the advance-notice period and underlying limitations date separately. If service occurs in the final 90 days, note the calculation supporting the § 364 extension. Keep the calculation with proof of service.

If dates are uncertain, do not backfill a precise date from memory. Mark it approximate and look for contemporaneous sources such as correspondence or delivery confirmation. A reliable timing record can matter if parties disagree.

Notice does not substitute for medical review. Continue organizing records and identifying the care decision while the notice period runs. A procedural letter does not establish that care fell below the standard or caused injury.

Record collection does not substitute for notice either. A records request is not the advance notice described in § 364. Categorize communications by purpose so that a request is not mistaken for intent-to-sue notice.

At each follow-up, verify notice status and the calendar. If a defendant changes, another provider is identified, or injury/discovery dates are revised, reassess recipients and deadlines rather than assuming the initial plan still covers the matter.

If notice is prepared near a calculated deadline, verify the calculation before relying on any extension. Section 364’s final-90-day provision depends on actual service timing, while § 340.5 supplies the underlying limits. Keep the dates and supporting records together so the reasoning can be checked rather than reconstructed later.

Use a separate status column for each recipient: proposed, sent, delivery confirmed, and follow-up needed. This is especially useful when several providers or entities may be involved. A clear status list helps avoid assuming that a draft or a notice to one person completed the step for everyone.

After any new provider is identified, revisit the party list and notice plan. Do not infer that earlier notice necessarily covers a newly identified party. Confirm the correct recipient and keep any additional service record separate, along with the calendar calculation that applies.

Los Angeles County context

These guides address California law for a possible malpractice injury in Los Angeles County. Most personal injury cases arising in the county are filed in Los Angeles County Superior Court and Los Angeles County Superior Court; the exact courthouse assignment should be confirmed for each case before filing. Keep provider and facility names in your timeline, because the responsible legal entity and public-entity status can affect deadlines.