A qualified medical expert may sign an affidavit of merit, but in some jurisdictions the attorney signs a certificate after consulting an appropriate licensed professional. The correct signer depends on the forum, the document required, the defendant’s profession and specialty, and the medical care at issue.
Before filing, confirm the expert’s license, specialty or subspecialty, board status, recent practice or teaching, and ability to address each defendant separately. These qualifications are part of the broader affidavit of merit requirements in medical malpractice cases.
First Identify Who Must Sign the Filing
Certificate and affidavit procedures generally follow one of three models:
- Expert-signed affidavit: The medical professional signs the affidavit and states the required opinions.
- Attorney-signed certificate: Counsel signs the certificate after consulting a qualified professional.
- Hybrid filing: Counsel signs a certificate or affidavit and attaches a report signed by the reviewing professional.
The difference between a certificate and an affidavit of merit is not merely a matter of terminology. It can determine who signs the filed document, whether an expert report must be attached, and whether the statement must be sworn or notarized.
An attorney-signed certificate does not eliminate the need for a qualified medical reviewer. The consulted professional may still need to satisfy statutory standards for licensure, specialty alignment, recent practice, or expert testimony. [VERIFY]
What Qualifications Must the Signer Meet?
The requirements vary by jurisdiction, but attorneys should evaluate the following factors before retaining an expert for a certificate or affidavit of merit.
Licensure
Many states require the expert to hold a current professional license. Some permit licensure in any U.S. jurisdiction, while others impose profession-specific or license-class requirements.
Confirm:
- License status: The license is current and unrestricted.
- Profession: The expert holds the same type or class of professional license when required.
- Location: The jurisdiction permits an expert licensed in another state.
- Disciplinary history: No suspension, restriction, lapse, or inactive status creates a qualification issue.
Specialty Match
Some jurisdictions require the expert to practice in the same specialty or subspecialty as the defendant. Others permit a substantially similar specialty when the expert applies the same standard of care.
A general physician may not qualify to evaluate specialist care when the claim concerns knowledge, procedures, or decisions unique to that specialty.
Board Certification
Board certification is not universally required. Some states, however, impose additional matching requirements when the defendant is board certified.
Compare:
- Defendant’s certification: The board and specialty in which the defendant was certified.
- Expert’s certification: Whether the proposed signer holds a matching or legally acceptable certification.
- Care at issue: Whether the alleged negligence occurred within the certified specialty.
- Exceptions: Whether a statutory exception or judicial waiver applies.
Active Practice or Teaching
Several states require the expert to be actively practicing, teaching, or supervising in the relevant field.
Academic work may qualify, but only when it satisfies the jurisdiction’s definition of teaching or clinical involvement. Medical research or litigation consulting alone may not satisfy an active-practice requirement.
Time Requirements
Some states use a lookback period to determine whether the expert’s experience is sufficiently recent. The period may be measured from the alleged negligence rather than the filing date.
Ask:
- Did the expert practice during the required period?
- Was the required portion of the expert’s professional time spent in the relevant specialty?
- Does teaching count as qualifying professional activity?
- Does a recently retired expert fall within an allowed window?
Defendant-Specific Matching
Qualifications should be assessed against each defendant and each alleged act.
The issue is not only whether the expert understands the medicine. The expert must be qualified to evaluate the standard of care applicable to the specific provider, specialty, procedure, and time period.
Multiple Defendants
One expert may not be qualified to address every defendant.
A claim involving a surgeon, anesthesiologist, nurse, and hospital may involve several distinct professional standards. Separate experts, affidavits, reports, or certificates may be necessary.
Examples of State Signatory Rules
The following examples illustrate common approaches. They are not a complete state survey. Consult the state-by-state certificate and affidavit of merit requirements and verify the current primary law before filing.
New Jersey
Filing model: The medical expert signs the affidavit.
- Specialty match: The same specialty or subspecialty may be required.
- Board certification: A board-certified defendant can trigger additional matching requirements.
- Professional activity: Clinical practice or qualifying teaching may be required.
- Multiple defendants: Each defendant must be supported by an appropriately qualified affiant.
Michigan
Filing model: The medical expert signs the affidavit.
- Specialty match: The expert generally must match the defendant’s specialty.
- Board certification: Matching certification may be required when the defendant is board certified.
- Professional activity: Most of the expert’s professional time must have been spent in qualifying practice or teaching.
- Time requirement: The relevant lookback period is generally the year before the alleged negligence.
Illinois
Filing model: The attorney or pro se plaintiff signs the certificate and attaches an expert-signed report.
- Licensure: The reviewer may need to hold the same profession and class of license.
- Practice area: The reviewer must practice or teach in the same area of health care.
- Time requirement: Qualifying practice or teaching generally must have occurred within six years.
- Multiple defendants: Separate certificates and reports are generally required.
Pennsylvania
Filing model: The attorney or party signs the certificate based on a professional’s written statement.
- Specialty match: Same or substantially similar specialty standards may apply.
- Board certification: Board matching may be required, subject to exceptions.
- Professional activity: Recent active practice or teaching is generally required.
- Multiple defendants: Separate certificates are commonly required for licensed professional defendants.
New York
Filing model: The attorney signs after consulting a physician, dentist, or podiatrist.
- Licensure: The consultant may be licensed in New York or another state.
- Knowledge: The statute focuses on knowledge of the relevant issues rather than a universal same-specialty requirement.
- Board certification: Matching certification is not expressly required by the certificate statute.
- Multiple defendants: One certificate may cover the action, but the consultation should support the claims asserted.
Nevada
Filing model: A medical expert signs the affidavit.
- Practice area: The expert must practice or have practiced in a substantially similar area.
- Defendant specificity: The affidavit must connect the alleged negligence to each provider.
- Multiple defendants: One affidavit may address several defendants only when it adequately supports the allegations against each one.
Who May Not Qualify?
A strong curriculum vitae does not cure a statutory mismatch.
Potentially vulnerable signers include:
- A retired physician outside the permitted practice period
- A generalist evaluating specialist care in a same-specialty jurisdiction
- A non-board-certified physician evaluating a board-certified defendant where matching is required
- A professional with an inactive, restricted, suspended, or lapsed license
- An expert whose experience does not match the treatment at issue
- One physician used to support claims against providers from several professions
- A researcher or consultant without qualifying recent clinical or teaching activity
An attorney-signed certificate may also be defective when the underlying reviewer would not qualify under the governing law. Signer and specialty defects are among the issues addressed in late or defective affidavit of merit filings.
How to Vet a Signer Before Filing
Use a defendant-by-defendant review before requesting the final affidavit, report, or opinion.
For each defendant, confirm:
- Profession and license
- Specialty and subspecialty
- Board-certification status
- Specific care or conduct being challenged
- Proposed expert’s current license
- Expert’s specialty and board status
- Recent practice or teaching history
- Applicable statutory lookback period
- Need for a separate affidavit, report, or certificate
- Ability to address every required element
The filing may also need to address the standard of care, breach, causation, corrective action, or factual basis for the opinion. An annotated medical malpractice affidavit of merit example can help counsel identify common components, but it should not be treated as universal filing language.
Handling Cases With Multiple Defendants
Do not assume one expert can support every claim in a multi-defendant action.
A surgeon may be qualified to address operative technique but not nursing supervision, anesthesia management, radiology interpretation, pharmacy practice, or hospital credentialing.
For each defendant, document:
- Applicable professional standard
- Alleged act or omission
- Required expert specialty
- Expert supporting the allegation
- Document that must be filed
- Filing deadline
- Separate-report or separate-certificate requirement
Complete this analysis before the filing deadline approaches. A qualification defect discovered late may require a new expert review, a revised filing, or an application for relief that the jurisdiction does not permit.
Get the Right Expert for the Required Filing
Expert Institute helps attorneys identify and vet medical professionals based on the jurisdiction, defendant type, specialty, board status, clinical issues, and filing requirements.
Learn more about certificate and affidavit of merit expert-review services or submit the case jurisdiction, named defendants, allegations, and available medical records to begin the matching process.
