This 2026 list ranks Chicago misdiagnosis lawyers by looking at the cases they handle and results they've published, with reviews and professional history also considered.
Pintas & Mullins Law Firm takes first place here. The firm dates to 1985, with published diagnostic-error results and a sizable record of reviews from clients. If you've had a missed diagnosis, check whether the firm has handled one like yours. Who reviews your medical records, and how do the fees work? The Illinois malpractice guide explains the filing rules.
4.81,737 Google reviewsRated 4.8 out of 5 on Google from 1737 reviews
Best for: Diagnostic errors with serious injuries
Among Pintas & Mullins Law Firm's published results is $4.75 million for kidney damage that wasn't diagnosed before childbirth. Families can ask about that diagnostic-error case, as well as the firm's published $14 million result for a birth injury. Because the firm was founded in 1985, its documented history is longer than many entries here.
Stood out in our review for the results it publishes and its years of experience.
We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made
4.8605 Google reviewsRated 4.8 out of 5 on Google from 605 reviews
Best for: Delayed lung cancer diagnosis
Levin & Perconti publishes a verdict involving an abnormal chest X-ray that no one followed up on. The firm says lung cancer went undiagnosed for a substantial time in that case, making it relevant to readers considering a missed-diagnosis claim. Its practice-area listing specifically says it handles cases involving failure to diagnose or a delayed diagnosis.
Stood out in our review for the results it publishes and what its clients say.
We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made
4.85,402 Google reviewsRated 4.8 out of 5 on Google from 5402 reviews
Best for: Missed cancer and meningitis diagnoses
Among Malman Law's published results are $6 million for an infant's undiagnosed meningitis and a $5 million settlement following a boy's delayed tumor diagnosis. Another listed result is $2.25 million for undiagnosed ovarian cancer. Rather than just a general malpractice listing, those missed-diagnosis cases give the firm a basis for its position here.
Stood out in our review for the results it publishes and what its clients say.
We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made
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4.8603 Google reviewsRated 4.8 out of 5 on Google from 603 reviews
Best for: Missed kidney cancer diagnosis
Adam J. Zayed and Julian D. Hoshell are named in Zayed Law's published $2.5 million settlement for failure to diagnose metastatic renal cell carcinoma. It's a directly relevant result for someone weighing a kidney cancer claim. The same attorneys appear in its published $3 million surgical-injury settlement and $5.1 million hospital-injury settlement.
Stood out in our review for what its clients say and the results it publishes.
We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made
4.515 Google reviewsRated 4.5 out of 5 on Google from 15 reviews
Best for: Delayed abdominal emergency diagnosis
Kreisman Law Offices publishes a $35.3 million jury verdict for the late diagnosis of an acute abdominal emergency, its clearest connection to this list's focus. Robert D. Kreisman holds Martindale Hubbell's AV peer-review rating. The firm also publishes results involving delivery-related injury and wrongful death.
Stood out in our review for the results it publishes and how much of its work is medical malpractice.
We order firms by how much of their work is medical malpractice, the results they publish, what their clients say, their experience, their standing with the regulator and the recognition they have earned, all from public records and the firms' own sites. How lists are made
Explain what diagnosis was missed, including when you learned of the injury. Both the 2-year discovery deadline and 4-year outer limit need the lawyer's check. If the claim involves a child, give their birth date right away, because the filing rule is different.
Records and medical assessment
Someone needs to review the chart and test results. To file in Illinois, you need a qualified health professional's written report finding a reasonable and meritorious cause for filing. Before that medical review, ask what records the lawyer needs and how they'll arrange it.
Preparing and filing the complaint
Along with the report, the plaintiff's attorney must attach an affidavit about the medical review. A 90-day extension is available when the deadline is near. Before relying on that option, ask an Illinois lawyer whether it applies to your filing.
Developing the claim
To connect the diagnostic delay with the injury, ask how the lawyer will document the injury's effects. Keep later treatment records and bills ready. Because the published cases here involve different conditions, your file needs its own assessment.
Resolution
Although these firms publish settlements and jury verdicts, neither is promised in your case. Punitive damages aren't allowed in Illinois, which has no enforceable medical malpractice damage caps. After fees and costs, how would a proposed recovery be divided? Ask.
Malpractice claims in Chicago: the rules that matter
The filing deadline in Illinois
The clock startsWhen you found out, or should have
Time to start a claim2 yearsMiss it and the claim is usually lost.
At the very most4 yearsafter the treatment, with a few exceptions
Limits on damages in Illinois
Pain and sufferingNo cap
All damages togetherNo overall cap
Punitive damagesNot allowed
Expert paperworkThe plaintiff's attorney must attach an affidavit that a qualified health professional reviewed the case and found in a written report that there is a reasonable and meritorious cause for filing, with the report attached.
A written agreementThe share the lawyer takes, set out before work starts.
If you recover moneyThe agreed share and the case costs come out of it.
If the claim failsNo legal fee on a contingency agreement. Ask about costs.
Contingency fees are offered by eight firms here. If there's a recovery, the lawyer receives a share; if the claim fails, there's no lawyer's fee. Although all listed firms offer a free consultation, case costs remain separate. Obtaining records and medical opinions costs money, as do court fees. Who advances that money, and who pays those expenses if the claim fails, isn't stated in the firms' listed fee information. Don't sign before asking. When the lawyer explains their recovery share and how costs come out, also ask whether you'll owe expenses if nothing is recovered.
For all ten listed firms, the first consultation is free, they say. Contingency work is also offered by eight, they say.
What to bring to your first call
Symptoms and visits set out in a written timeline, including diagnoses
When you learned of the injury or received written notice, with dates
Discharge instructions, together with the medical records you have
The later diagnosis, along with test results and imaging reports
Which doctors and hospitals were involved, by name
Records of other expenses, along with treatment bills
Letters you've received from the hospital or insurer
If the claim involves a child, your child's birth date
Questions to ask a lawyer
1When this condition was missed, have you handled the case?
2Who reviews my medical records, and who works on my file?
3When must I file my claim under the applicable deadline?
4What arrangements will you make for the qualified health professional's review?
5While you're deciding whether to take my case, how will I hear from you?
6To pay your fee, what share of any recovery goes to you?
7If nothing is recovered, who pays case costs?
8Before deciding whether to represent me, what else do you need?
Choosing a Chicago misdiagnosis lawyer
Start with the condition doctors didn't catch. The published cases here include an infant whose meningitis went undiagnosed, as well as separate cases involving delays in diagnosing cancer. Ask your assigned lawyer about cases involving that condition before choosing them, or about another case where a similar diagnostic failure occurred. You'll learn more from a clear explanation of those cases than from a label saying the lawyer handles medical malpractice.
Use the first conversation to check the fit
1
Explain what changed after the delay
Gather the treatment dates and both diagnoses: the original one and the later one. Which test result or visit concerns you most? Ask what other records the lawyer needs to decide whether to take your case.
2
Identify your actual contact
Ask directly who'll review your chart and respond to messages. Several firms here receive conflicting reviews about staying in touch. If the firm says it'll give you attentive service, press for something concrete: how will it tell you whether it's taking your case?
3
Discuss medical review
Illinois requires a qualified health professional's written report to support the affidavit that the attorney submits. Ask how the firm gets that review arranged. What happens next if the reviewer finds no reasonable basis to file?
A free consultation is offered by every listed firm, they say. During that conversation, ask about fees; later services aren't necessarily free. When the eight firms offering contingency work recover money, the lawyer takes a share; if the claim fails, there's no lawyer's fee. If nothing is recovered, ask separately who pays for records and medical opinions, and who covers court fees.
Find out where each result arose. Hillsborough County was the location of Morgan & Morgan's listed verdict; Raleigh was where Grant & Eisenhofer P.A.'s arose. What work has the Chicago attorney personally handled? Check.
Don't sign while you're still waiting for answers about fees or don't know which person will be responsible for your file. Past awards can't tell you what you might recover.
Ask about the separate filing rule right away if the injured patient was a child. Illinois allows 8 years after the act or omission, but the deadline can't extend past the child's 22nd birthday.
Treat this as general information, not legal advice. Ask an Illinois lawyer to explain how the filing rules affect your family's situation.
Questions people ask
Which Chicago firm leads this misdiagnosis lawyer list?
First on this list is Pintas & Mullins Law Firm. Along with a history dating to 1985, the firm publishes a result for kidney damage that wasn't diagnosed before childbirth. It isn't necessarily the right fit for every patient. Before choosing the firm, ask how it'll assess the diagnostic delay and what work your assigned attorney has done involving your condition.
How long do I have to file a misdiagnosis claim in Illinois?
To file in Illinois, you generally have 2 years from when you knew or reasonably should have known of the injury, or received written notice of it. From the act or omission, the outer limit is generally 4 years. Different dates start these two clocks. When discussing your records and circumstances, ask an Illinois lawyer how each deadline applies.
Can I speak with a lawyer without paying for the first consultation?
A free consultation is offered by all ten firms here, they say; eight also say they work on contingency. Even with that free conversation, every expense isn't covered. Before signing, find out what share of a recovery would go to the lawyer. For medical review and records, ask who pays, then ask about court fees too.
What medical support does an Illinois malpractice filing need?
When filing, the plaintiff's attorney must attach an affidavit stating that a qualified health professional reviewed the case and found a reasonable and meritorious cause for filing in a written report. Attach the written report as well. A 90-day extension is available when the deadline is near. To find out whether that provision applies to your situation, speak with an Illinois lawyer.
What should I do before calling about a missed diagnosis?
Include when the diagnosis changed as you write down symptoms and visit dates. Start with the records you have, especially test results and discharge instructions. When speaking with the lawyer, give the date you learned of the injury or received written notice. Although you don't need a complete chart to ask about the deadline, Illinois filing rules may shape what needs to happen next.
Does Illinois give children more time to sue?
For a child, the deadline is within 8 years of the act or omission, never after the 22nd birthday. When you speak to the lawyer, give your child's birth date and the date of the suspected diagnostic error. Cases involving children appear in several firms' published results. Because those results don't settle your family's deadline, ask an Illinois lawyer how the rule applies to you.
How long will a Chicago misdiagnosis case take?
For these firms, there's no supported estimate of how long cases take. What happens next depends on medical review and filing requirements, together with the circumstances of your claim. To know where things stand, ask your case's stage and how you'll receive updates. Although a published settlement or verdict records a completed outcome, it doesn't tell you reliably how long your claim will take.
Are damages capped in Illinois medical malpractice cases?
In Illinois medical malpractice cases, no enforceable damage caps apply. Punitive damages aren't allowed there. Because the firms here report results for different injuries and circumstances, a published award still doesn't estimate what another patient could recover. To assess the effects of your missed diagnosis, ask a lawyer how they'd document them.
Can a lawyer review a claim if my loved one died after a delayed diagnosis?
Yes. Wrongful death appears among the matters several firms here say they handle. For a boy's death after a delayed tumor diagnosis, Malman Law publishes a settlement; a delivery-related wrongful death verdict appears in Kreisman Law Offices' results. Given your family's circumstances, ask an Illinois lawyer whether there's support for a claim and who may bring it. To learn which deadline applies, ask the lawyer too.
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