What does a medical malpractice case need in Pennsylvania, including a certificate of merit?

Last updated October 4, 2026.

A Pennsylvania malpractice case needs proof that the care "fell outside acceptable professional standards" and that this was a cause of the harm, almost always shown through a qualified medical expert. Before the case can go far, the patient's lawyer must file a certificate of merit, with the complaint or within 60 days after it, stating that an appropriate licensed professional has given a written statement supporting the claim (Pa.R.C.P. 1042.3). Without it, the defendant can have the case dismissed by a judgment of non pros.

These requirements are why malpractice cases are prepared differently from other injury claims. The cases we handle are described on our medical malpractice page.

What does the case have to prove?

The rules describe the core of a professional liability claim in the certificate itself: that "the care, skill or knowledge exercised or exhibited in the treatment" fell outside acceptable professional standards and "that such conduct was a cause in bringing about the harm" (Rule 1042.3(a)(1)). In plain terms, three things have to come together:

• A departure from the standard of care. What a careful professional in the same field would have done, and how the care given fell short. In a case against a physician, MCARE requires the expert on this point to practice in the same or a substantially similar subspecialty and, if the doctor is board certified, to hold the same or a similar certification, unless the court waives those requirements (40 P.S. 1303.512(c) to (e)).
• Causation. The departure must have been a cause of the harm, not just something that happened alongside an illness that would have caused the same result anyway.
• Harm and its cost. Medical expenses, lost earnings and noneconomic loss, which the jury must itemize at a party's request (Pa.R.C.P. 1042.71). How those damages are treated is explained in whether malpractice damages are capped.

Any expert who gives a medical opinion against a physician needs an unrestricted license to practice medicine in a state or the District of Columbia and must be in active clinical practice or teaching, or retired from it within the past five years (1303.512(b)).

How does the certificate of merit work, step by step?

1. A qualified professional reviews the care. The written statement must come from an "appropriate licensed professional." The rule's official note says that person does not have to be the trial expert, but should have qualifications sufficient to testify, and in a case against a physician should meet the MCARE section 512 standards.
2. The complaint identifies each defendant. It must say against which defendants a professional liability claim is asserted (Rule 1042.2(a)).
3. The certificate is filed. The attorney, or the plaintiff if unrepresented, files it with the complaint or within 60 days after the complaint is filed (Rule 1042.3(a)). A plaintiff without a lawyer must attach the professional's written statement (1042.3(e)).
4. One certificate per professional. A separate certificate is filed for each licensed professional sued (1042.3(b)(1)). If a hospital or practice is sued for the conduct of its staff, a certificate under 1042.3(a)(2) covers that claim, supported by a certificate of merit as to those staff.
5. The defendant answers. A defendant must file its responsive pleading within the usual time or within 20 days after being served with the certificate, whichever is later (Rule 1042.4).

What happens if the certificate is late?

The court must extend the time for good cause, and the rule's note says courts should consider the practicalities of expert review, for example where the lawyer was first contacted shortly before the statute of limitations was about to expire, or where records needed for review are unavailable despite diligent efforts. The prothonotary may not enter the judgment if the certificate is filed before the defendant's praecipe (1042.7, note). These protections do not replace the two-year filing deadline, explained in how long you have to file a malpractice claim.

What changes the answer?

• Who was sued. The rules cover licensed health care providers under MCARE, and also accountants, architects, chiropractors, dentists, engineers, nurses, optometrists, pharmacists, physical therapists, psychologists, veterinarians and attorneys, including professionals licensed in other states (Rule 1042.1(c)).
• A lack of informed consent. For surgery, anesthesia, radiation or chemotherapy, blood transfusions, implanted devices and experimental treatment, a physician must obtain informed consent except in emergencies (1303.504(a)). Expert testimony is required to identify the risks and alternatives, and liability requires proof that the information would have been a substantial factor in the patient's decision (1303.504(c) and (d)). The certificate rule applies to these claims too.
• A claim that needs no expert. A lawyer may certify that expert testimony is unnecessary, but is then bound by that choice and, absent exceptional circumstances, cannot present expert testimony on standard of care and causation later (1042.3(a)(3), note).
• A provider who was not involved. A provider named by mistake can file an affidavit of noninvolvement and be dismissed, and the filing tolls the statute of limitations as to that provider (1303.506).
• Altered records. If intentional alteration or destruction of records is proved, the court may tell the jury to consider an adverse inference (1303.511(c)).
• A public hospital or clinic. Medical care by Commonwealth facilities is one of the exceptions to sovereign immunity (42 Pa.C.S. 8522(b)(2)), but a written notice is due within six months and damages are capped; see injury deadlines and the government notice.
• The patient's own conduct. A defendant may argue that the patient shared responsibility, for example by not following instructions. Pennsylvania's comparative negligence rule then reduces, or above 50 percent bars, the recovery (42 Pa.C.S. 7102).
• A death. Wrongful death and survival claims based on medical care need the same certificate; who files those claims is covered in wrongful death and survival actions.

Where can a malpractice case be filed?

For malpractice cases filed from January 1, 2002 through 2022, a special venue rule, Rule 1006(a.1), applied. The Supreme Court rescinded it effective January 1, 2023, returning malpractice cases to the same venue rules as other cases, and in an order of February 18, 2026, removed the provisions that had called for the change to be reexamined (Pa.R.C.P. 1006, comment). Under the general rule, a case against individuals may be brought where a defendant can be served or where the claim arose, and a case against several defendants jointly may be brought in any county where venue is proper for one of them (1006(a) and (c)).

For patients in Delaware County, that can mean a choice between Media and the county where the hospital is. The Delaware County civil process is described in our Delaware County overview.

For example: a missed diagnosis in an emergency room

Here is a hypothetical. A man from Upper Darby goes to a hospital emergency room with severe abdominal pain. He is sent home with a diagnosis of indigestion; two days later his appendix ruptures and he needs emergency surgery and a long hospital stay.

His lawyer first gathers the emergency room chart, imaging and nursing notes, and sends them to an emergency physician who still practices and is certified by a board similar to the treating doctor's. That reviewer gives a written statement that the care fell outside acceptable standards and was a cause of the rupture. The complaint names the emergency physician and the hospital. The lawyer files one certificate under 1042.3(a)(1) for the physician and one for the hospital's responsibility for its staff under 1042.3(a)(2), within 60 days.

If a radiologist had also been named, a third certificate would be needed for that professional. If the reviewer had needed more records than the hospital had produced, the lawyer could have moved for an extension before the deadline. This example only illustrates the procedure; it says nothing about how any case would end.

What mistakes do people make?

• Filing before an expert has reviewed the care. The 60-day window is short; the review should come first.
• Using the wrong kind of reviewer. A statement from someone who would not qualify to testify may not support the certificate.
• Forgetting a defendant. Every licensed professional sued needs a separate certificate.
• Ignoring a notice of intent. The 30-day clock after that notice is the last chance to file or to seek an extension.
• Certifying that no expert is needed without thinking it through. That choice usually locks out expert testimony later.
• Getting only some of the records. Reviewers need the whole chart to give a reliable opinion.

What should I do this week?

1. Write a timeline of every visit, test, procedure and result.
2. List each doctor, nurse, practice and hospital involved.
3. Request your complete records, including imaging and nursing notes.
4. Keep bills, insurance statements and records of missed work.
5. Write down what you were told about risks and alternatives before any procedure.
6. Do not post about the care or the providers online.
7. Book a consultation so expert review can start well before the filing deadline.

Frequently asked questions

Does the certificate of merit name the expert?

The certificate is signed by the attorney or the unrepresented party and states that an appropriate licensed professional supplied a written statement (1042.3(a)). A party without a lawyer must attach that written statement (1042.3(e)).

Can the deadline be extended more than once?

The rule's note says there is no limit on the number of extension orders, as long as each comes from a new, timely motion showing cause as of the date it is filed.

Do I need a certificate against a hospital?

Yes, when the claim is that the hospital is responsible for professionals who deviated from the standard of care (1042.3(a)(2)). Entities responsible for licensed professionals, such as hospitals and practices, are covered by Rule 1042.1(a)(2).

Can the case settle early?

Before expert reports are exchanged, a health care provider may ask the court for a settlement conference or court-ordered mediation (Pa.R.C.P. 1042.21). Many cases resolve at different stages.

What kinds of malpractice cases do you handle?

Our pages on birth injuries list the common situations. Errors in the operating room are covered on our surgical errors page.

Does the certificate of merit decide the case?

No. It only shows that a qualified professional supports the claim at the start. The case is decided on the evidence and expert testimony at trial or resolved by settlement.

Call Giribaldi Law at (610) 891-8303 or contact us online for a free consultation about a possible malpractice case. Evening and weekend appointments are available.