When people choose a surgeon, they often focus on factors that are easy to see.

Is the doctor nearby? Are they in-network? Did another doctor recommend them? Do they have good online reviews?

Those questions may be important, but they leave out one of the strongest and most consistently studied indicators of surgical performance: experience.

For many complex operations, patients treated by surgeons and hospitals that perform more of the procedure have better outcomes. Depending on the operation, that can mean fewer complications, a lower risk of death, and better quality of life.

Some doctors are better than others, and experience is often the most useful way to tell who is who. This does not mean that the busiest doctor is automatically the best doctor. It does mean that experience should be treated as a serious quality measure, not an afterthought.

Practice Does Not Make Perfect, but It Matters

Surgery requires knowledge, judgment, technical skill, and team coordination.

A complex cancer operation is not the work of the surgeon alone. Throughout the patient’s care, the surgeon relies on anesthesiologists, nurses, radiologists, pathologists, intensive care teams, and other specialists. Each plays a different role in planning the procedure, delivering treatment, monitoring recovery, and responding quickly if complications arise.

Teams that perform the same complex procedures regularly have more opportunities to refine those skills. They may be better prepared to plan for unusual risks, recognize complications, expect the unexpected, and respond when something does not go according to plan.

The difference can be substantial.

One landmark study examined more than 5,000 older patients who underwent major operations for cancers of the pancreas, esophagus, lung, colon, rectum, liver, and genitourinary system.

• For esophageal surgery, the 30-day death rate was 17.3% at low-volume hospitals, compared with 3.4% at high-volume hospitals.
• For pancreatic surgery, the rates were 12.9% and 5.8%, respectively.
• For esophageal surgery, the risk of dying within 30 days was approximately five times as high at the low-volume hospitals included in the study.

The researchers concluded that mortality was lower when complex cancer procedures were performed by surgical teams in hospitals with specialized experience.

Both the Surgeon and the Hospital Matter

A highly experienced surgeon cannot work independently of the hospital around them.

A later study reviewed more than 32,000 cancer operations performed across New York State. It examined surgery for lung, colon, and stomach cancer and evaluated both the surgeon’s volume and the hospital’s volume.

In general, patients had the lowest risk-adjusted death rates when their operations were performed by a high-volume surgeon at a high-volume hospital.

The surgeon’s skill matters, but so does the system supporting the operation. Patients also depend on experienced operating-room staff, specialized nursing, intensive care, imaging, laboratory support, and access to other specialists when complications occur.

One commentary on the New York findings described how dramatically risk could differ between nearby institutions. A patient could reportedly “change the operative risk from 3.2 to 9.8 per cent merely by crossing the street.”

The hospitals may be geographically close. Their results may not be.

Some Surgeons Perform Surprisingly Few Complex Procedures

Patients often assume that a surgeon who offers a procedure must perform it regularly.

That is not always true.

During one period examined in the research, 97% of the surgeons in New York State who performed pancreatic cancer surgery averaged fewer than one such operation per year.

That does not mean every one of those surgeons provided poor care. It does show why patients should not assume that all qualified surgeons have the same practical experience.

Board certification, training, and hospital privileges establish important minimum qualifications. They do not tell you how frequently a doctor performs your particular procedure or how their patients usually fare afterward.

Experience May Affect Long-Term Survival Too

The relationship between volume and outcomes is not limited to the first few days after surgery.

One study examined 2,592 pancreatic resections and 3,734 liver resections performed across more than 1,000 hospitals. A relatively small group of highvolume centers performed approximately 11% to 12% of the operations.

Patients treated at those high-volume centers had better five-year survival.

There are several possible reasons. Experienced centers may be better at selecting patients for surgery, determining the extent of the cancer, removing the tumor completely, managing complications, and coordinating chemotherapy, radiation, and follow-up care.

The study does not prove that volume alone caused the survival difference. Patients treated at major centers may differ in other ways from patients treated elsewhere.

Still, when short-term and long-term findings point in the same direction across multiple studies, volume becomes difficult to dismiss.

The Pattern Extends Beyond Cancer Surgery

Similar findings have appeared in other areas of medicine.

A systematic review of bariatric or weight-loss surgery analyzed 24 studies involving more than 458,000 patients. It found strong evidence that patients generally had better outcomes when treated by higher-volume surgeons and at higher-volume centers.

A separate review evaluated the effect of surgical fellowship programs. Hospitals with affiliated surgical fellowship programs had lower patient mortality and complication rates than hospitals without them.

Fellowship programs are not a guarantee of quality. Their presence may, however, indicate a more specialized environment with advanced training, established protocols, and regular exposure to complex cases.

Experience also develops over time.

A study of almost seven million births in Florida and New York found that obstetricians generally had fewer maternal complications as they gained experience following residency training. The largest improvement occurred during the first decade after training, although additional improvement continued in later decades.

These findings do not mean that a younger doctor is necessarily worse or that an older doctor is necessarily better. Years in practice and procedurespecific experience are different measures.

A physician may have practiced for 25 years but perform a particular operation only occasionally. Another may have practiced for eight years and performed it several times each week.

Even Time of Day May Matter

Healthcare quality is affected by more than the individual doctor, or even the hospital team.

One study examined more than 140,000 non-emergency general and vascular operations performed through the Department of Veterans Affairs. Operations beginning between 4 p.m. and 6 p.m. were associated with a 25% higher risk of postoperative complications than operations beginning earlier in the day.

The study did not establish that patients should refuse all late-afternoon surgery. It did illustrate how staffing, fatigue, handoffs, and hospital routines can affect care.

• The doctor matters.
• The hospital matters.
• The team matters.
• The process matters.

Quality is rarely explained by a single number.

More Data Is Better, but Only When Used Carefully

If procedure volume and outcomes are valuable, should every doctor and hospital simply be publicly ranked?

Not necessarily.

Public reporting can help patients identify higher-quality care and encourage healthcare organizations to improve. But poorly designed ratings can also create unintended consequences.

Doctors or hospitals may become reluctant to treat very sick patients if those patients could make their reported results look worse, also known as cherrypicking of cases. Simplified rankings may ignore patient preferences, case complexity, and clinical judgment.

This is why healthcare data must account for important differences between patients, including age, other medical conditions, severity of illness, and the complexity of the procedure.

Even then, data on the individual patient should inform the decision, not replace medical judgment.

Volume Is a Signal, Not a Verdict

There is no universal number of procedures that makes a doctor “high volume.”

The meaningful threshold differs by operation. Performing 20 cases per year may represent substantial experience for one rare procedure and very little experience for another.

The strongest approach is to evaluate several objective signals together:

• Procedure-specific experience
• The types of patients the doctor usually treats
• Complication and mortality rates
• Readmissions
• Avoidance of unnecessary procedures
• Board certification and specialized training
• Hospital capabilities

Remember: online star ratings cannot provide this information.

A five-star review may tell you that the front desk was friendly or the waiting room was clean. It cannot tell you whether surgery was necessary, whether the right operation was performed, or whether another doctor would have produced a better result.

Questions to Ask Before a Complex Procedure

Patients do not need to become medical-data experts. They should, however, feel comfortable asking direct questions.

1. How many times did you perform this exact procedure last year?

   “Similar procedures” is not the same as the procedure you need.

2. How do your complication rates compare with expected rates?

   The answer should account for the difficulty of the cases the surgeon treats.

3. Does this hospital regularly handle this operation and its potential complications?

   The hospital’s experience matters alongside the surgeon’s.

4. Are there less invasive alternatives?

   Experience should include knowing when not to operate.

5. Would you recommend a second opinion at a specialized center?

   A doctor who is confident in the recommendation should generally be comfortable with a patient seeking another opinion.

Choosing Better Means Looking Beyond Convenience

Patients should not have to guess which doctor has the right experience.

But most people are still asked to choose based on a referral, distance from home, appointment availability, or online reviews.

Those factors may make care easier to access. They do not necessarily make the care better.

The evidence is not subtle: for many complex procedures, the doctor and hospital you choose can materially change the odds of a good outcome.

• More experience does not guarantee success.
• Less experience does not guarantee failure.

But when the stakes are high, experience is too important to ignore.

There really can be safety in numbers.