The Hidden Costs of Defensive Medicine

By Noah T. Kaufman, MD, Board-Certified Emergency Medicine · 18 min read · Healthcare Costs

Unnecessary tests, imaging, and referrals driven by fear of lawsuits — how defensive medicine costs patients billions.

This article is for educational purposes only. It is not medical advice, diagnosis, or treatment. If you are experiencing a medical emergency, call 911 or go to your nearest emergency room immediately.

Most patients have never heard the term "defensive medicine"

But they have paid for it.

Defensive medicine is what happens when doctors order tests, scans, referrals, or treatments partly because they are medically useful, and partly because they are afraid of being sued if they miss something.

Sometimes that fear is reasonable. Sometimes the extra test finds something important. But often, defensive medicine adds cost, delay, anxiety, radiation, confusion, and waste without clearly improving the patient's outcome.

It is one of the hidden forces driving American healthcare costs. And it affects almost every part of medicine.

Especially emergency medicine.

Why emergency medicine is so vulnerable to defensive medicine

Emergency doctors practice in a uniquely high-risk environment.

We see patients we do not know. Often at the worst moment of their lives. With incomplete histories. Limited time. Crowded rooms. High emotions. Pain. Fear. Intoxication. Language barriers. Atypical presentations. Missing records. Unclear medication lists. Family members giving partial stories. Patients who are too sick to speak clearly.

And we make decisions prospectively.

That means we make decisions before we know the outcome. Everyone else gets to judge retrospectively.

After the CT result. After the blood test. After the diagnosis. After the patient gets better. After the patient gets worse. After the rare complication. After the lawsuit.

That retrospective lens is dangerous because it makes uncertainty look simpler than it was in real time. Once everyone knows the outcome, the path can look obvious.

But at the bedside, it rarely is.

Medicine is probabilistic

Medicine is not math. It uses science, but it is not perfectly deterministic. The same symptom can mean ten different things.

Chest pain can be reflux, anxiety, muscle strain, pneumonia, pulmonary embolism, aortic dissection, or heart attack.

Abdominal pain can be constipation, gastritis, kidney stone, appendicitis, ovarian torsion, bowel obstruction, aneurysm, or nothing dangerous at all.

Headache can be migraine, tension headache, dehydration, viral illness, brain bleed, meningitis, tumor, or stress.

Doctors are constantly asking:

What is most likely?
What is most dangerous?
What can I not miss?
What test would actually change the plan?
What is the risk of doing more?
What is the risk of doing less?

That is not easy. Even excellent doctors are wrong sometimes. Not because they are careless. Because medicine is probabilistic and every patient is an n of 1.

You can make a reasonable decision and still have a bad outcome. You can follow the standard of care and still miss something rare. You can order the right test and still get a false negative. You can order too many tests and harm the patient in a different way.

This is why good medicine requires judgment. And judgment is exactly what defensive medicine can distort.

America is litigious, and doctors know it

America has built a medical culture where missing something can be professionally, financially, and psychologically devastating.

Physicians are trained to think carefully about dangerous diagnoses. That is appropriate. But the legal environment adds another layer:

What will this look like later?
What will an attorney say?
What will an expert witness say?
What will the chart show?
What if this is the rare case?
What if I send this patient home and they get worse?
What if I am right 999 times, and the 1,000th becomes a lawsuit?

This is not theoretical. Doctors feel this. It changes behavior. It makes practicing good medicine scary sometimes.

And emergency medicine is one of the highest-pressure places for that fear to show up.

The standard becomes: don't miss anything

In a perfect world, the standard would be:

Think carefully. Use evidence. Communicate clearly. Order tests when they are likely to help. Avoid unnecessary harm. Make a reasonable decision based on the information available at the time.

In the real world, the practical standard often feels like:

Do not miss anything.

That sounds noble. But it is impossible.

No system can catch everything. No doctor can diagnose every rare presentation. No workup can eliminate all risk.

Trying to "miss nothing" leads to massive overtesting:

More labs
More CT scans
More x-rays
More referrals
More admissions
More observation stays
More specialist consults
More documentation
More cost
More patient anxiety
More incidental findings

And ironically, not always better care.

The hidden cost of "just to be safe"

Patients often hear the phrase:

"Let's just get the CT to be safe."

Sometimes that is exactly right. CT scans save lives. Lab tests save lives. Imaging saves lives.

The problem is not testing. The problem is reflexive testing.

Testing when the pre-test probability is very low.
Testing because the system rewards action over restraint.
Testing because the doctor is afraid.
Testing because the patient expects certainty.
Testing because the chart needs to look defensible.
Testing because everyone knows the lawsuit will ask, "Why didn't you just order it?"

"Just to be safe" can be reasonable. But it can also be expensive, misleading, and harmful.

A CT scan may find an incidental nodule that leads to months of follow-up. A borderline lab abnormality may trigger more testing. A false positive may create anxiety. Radiation exposure matters, especially when repeated across a lifetime. A harmless finding can become a medical rabbit hole.

More information is not always more wisdom. More testing is not always better medicine. Better thinking is better medicine.

Defensive medicine affects the doctor-patient relationship

Defensive medicine does not only increase costs. It changes the emotional texture of care.

Doctors become more guarded. More documentation-focused. More checklist-driven. More afraid of saying, "I don't know." More afraid of shared decision-making. More likely to treat the chart instead of the person.

Patients feel this. They may not know the term "defensive medicine," but they sense when medicine becomes mechanical. They sense when the doctor is practicing for the record. They sense when the visit is more about liability than understanding.

And doctors hate it too. Most physicians did not go into medicine to become defensive documentation machines. They went into medicine to help people.

But when every decision can be second-guessed years later by people who already know the outcome, defensive behavior becomes almost inevitable.

The expert witness world

In addition to being a board-certified emergency physician with more than 20 years of clinical experience, I have also worked as a medical expert witness. I provide impartial opinions for both sides. Plaintiff and defense.

That work has taught me a lot.

Some lawsuits are legitimate. Some patients are truly harmed by care that falls below the standard. Accountability matters. Negligence exists. Bad medicine exists. Patients deserve recourse when the system fails them.

But the legal system also has its own incentives. Experts can be paid large hourly rates, sometimes $1,000 per hour or more, to review cases and offer opinions. Attorneys' fees can be enormous. Insurance companies may settle cases not because the medicine was clearly wrong, but because trial risk is high. Juries can be unpredictable. Sympathy matters. The "court of public opinion" matters. A tragic outcome can be emotionally powerful even when the care was reasonable.

That environment affects physicians. Every doctor knows that a future expert may sit in a quiet room years later, with all the records, all the results, and all the hindsight, and critique a decision that had to be made in minutes.

That is a heavy psychological burden.

The paradox: the fear of lawsuits can make care worse

The irony is that defensive medicine often feels safer but can make the system worse.

It increases costs. It clogs ERs. It exposes patients to unnecessary testing. It drives burnout. It makes doctors more afraid. It makes visits less personal. It can distract from the actual patient in front of us.

If every headache gets a CT, every chest pain gets a maximal workup, every belly pain gets imaging, every injury gets extensive testing, and every uncertain patient is sent to the ER, the system becomes overwhelmed.

Then truly sick patients wait longer. Doctors become more rushed. Nurses become more overloaded. Patients become more frustrated. Costs explode.

And no one feels safer.

This is one reason American medicine can feel both overmedicalized and under-caring at the same time. We do too much of some things and not enough of others. Too many tests. Not enough time. Too much billing complexity. Not enough explanation. Too much fear. Not enough trust.

Experience can reduce unnecessary testing

Experienced doctors can often do less safely.

That sentence may sound strange to patients. But it is true.

A physician who has seen tens of thousands of patients develops pattern recognition. They know what a truly sick patient looks like. They know when vital signs are concerning. They know when a symptom pattern fits something benign. They know when something feels off. They know when not to trust a reassuring story. They know which tests will change management and which will not. They know when to watch, when to treat, when to image, when to transfer, and when to say, "This can be safely managed here."

That experience can drive down the cost of medicine. Not by cutting corners. By avoiding waste.

There is a huge difference.

Cheap medicine asks, "How little can we do?"

High-value medicine asks, "What is the right amount of care for this patient?"

Sometimes the right amount of care is a lot. Sometimes the ER is necessary. Sometimes CT is necessary. Sometimes labs are necessary. Sometimes the safest thing is admission.

But sometimes the right amount of care is a careful history, a focused exam, a vital-sign check, a thoughtful explanation, a shared plan, and follow-up precautions.

That takes judgment. And judgment is a craft.

Medicine is a skill, an art, and a craft

Modern medicine often pretends everything can be reduced to algorithms. Algorithms are useful. Guidelines are useful. Protocols are useful. But they are not enough.

Medicine is a skill. You develop it through repetition.

Medicine is an art. You learn to see patterns, subtleties, and human context.

Medicine is a craft. You refine your judgment over decades.

A young clinician may know the textbook. An experienced clinician has seen the textbook fail.

Patients do not always present classically. They do not always "read the textbook." The heart attack may look like indigestion. The septic older adult may have no fever. The child with a serious problem may look okay at first. The anxious patient may still have a real medical condition. The patient with dramatic pain may be safe. The quiet patient may be dying.

Experience teaches humility. It teaches restraint. It teaches when to worry. It teaches when not to.

That is why multi-decade ER experience has real value. Not just prestige. Not just credentials. Real clinical value.

KaufCare's approach

At KaufCare Advanced Urgent Care, we only hire experienced, board-certified ER physicians. Often with decades of experience.

That matters.

Our model is not built around volume medicine. It is not built around moving patients through as fast as possible. It is not built around sending every uncertain case to the ER.

It is also not built around pretending we can safely manage everything outside the hospital.

Our approach is more nuanced. We ask:

Can this be safely handled here?
Does this patient need the ER?
Would testing here actually help?
Would ER testing change the outcome?
What is the risk of waiting?
What is the risk of overtesting?
What are the patient's values?
What would I recommend if this were my family member?

That is where shared decision-making matters.

Shared decision-making does not mean dumping responsibility on the patient. It means explaining the reasonable options. Explaining the risks. Explaining what we know. Explaining what we do not know. Then making a plan together.

That is how experienced physicians can reduce unnecessary cost while still practicing safely.

Defensive medicine vs thoughtful medicine

The opposite of defensive medicine is not reckless medicine. It is thoughtful medicine.

Defensive medicine is driven mainly by fear. Thoughtful medicine is driven by judgment.

Defensive medicine asks: "How do I protect myself?"

Thoughtful medicine asks: "What does this patient actually need?"

Defensive medicine often leads to more testing. Thoughtful medicine may lead to more testing or less testing, depending on the case.

Defensive medicine treats uncertainty as a threat. Thoughtful medicine treats uncertainty as part of reality.

Defensive medicine hides behind the chart. Thoughtful medicine talks honestly with the patient.

This is not easy. There are times when even the most experienced physician orders the test because the risk is too high not to. That is not defensive medicine. That is good medicine.

The distinction is intent, reasoning, and proportionality. Are we testing because the patient needs it? Or because the system has made everyone too afraid not to?

Patients are paying for this

Patients pay for defensive medicine in obvious and hidden ways.

They pay with higher bills.
They pay with longer waits.
They pay with unnecessary scans.
They pay with more referrals.
They pay with incidental findings.
They pay with anxiety.
They pay with time away from work and family.
They pay with a healthcare system that becomes more expensive and less human every year.

Doctors pay too. They pay with burnout. They pay with fear. They pay with moral injury. They pay with the feeling that good clinical judgment is no longer enough.

And society pays with a system that is increasingly unsustainable.

The bottom line

Defensive medicine is one of the hidden costs of American healthcare. It is driven by litigation, fear, hindsight bias, patient expectations, institutional pressure, and a system that punishes missed diagnoses far more visibly than it punishes unnecessary care.

Some testing is essential. Some caution is wise. Some lawsuits are justified.

But a culture of "never miss anything" has consequences. It drives up costs. It increases waste. It burns out physicians. It crowds ERs. It exposes patients to unnecessary testing. And it makes medicine feel less human.

At KaufCare, we believe there is a better way. Experienced, board-certified ER physicians. Transparent pricing. Thoughtful testing. Collaborative decision-making. Honest conversations about risk. A willingness to send patients to the ER when necessary. And a willingness to safely avoid the ER when it is not.

That is not cutting corners. That is practicing medicine as a skill, an art, and a craft.

If you are having a true emergency, call 911 or go to the ER.

If you have an urgent problem that may not require the hospital, KaufCare may be able to help.