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Background: It has been reported that higher surgeon experience leads to better patient outcomes. In this study, we look at surgeon experience and its association with postoperative outcomes and variation among the practice of surgeons performing paraesophageal hernia repairs (PEH)., Method: This was a retrospective study of 1155 patients who underwent PEH repair at a single institution (2010-2023). Surgeon experience was defined as the number of surgeries performed per surgeon and was split using the median surgeries (n = 100), with surgeons performing at or above the median categorized as high-experience and below the median as low-experience surgeons. A multivariable logistic regression model was used to test correlation between surgeon experience and variables, including demographics and intra- and post-operative outcomes., Results: High-experience surgeons performed more elective cases (93.4% vs 85.5%), but low-experience surgeons operated more on emergent (2.7% vs 0.9%), semi-elective (2.3% vs 1.4%), and urgent cases (9.5% vs 4.3%). Low-experience surgeons operated more on patients who were older (67.5 vs 63.2 years, p < 0.001) and had an increased risk of CVD (72.9% vs 61.5%, p < 0.001). Intraoperative OR time was considerably less for high-experience surgeons (115.8 vs 172.9 min, p < 0.001). Low-experience surgeons had increased risk of intra-operative complications (4.5% vs 1.8%, p = 0.021) and post-op pneumonia within 30 days (1.8% vs 0.3%). However, long-term outcomes such as hernia recurrence (OR: 1.10, CI: 0.78-1.54) and redo-operations for hiatal hernia (OR: 1.10, CI: 0.65-1.75) were similar for both groups., Conclusion: High-experience surgeons perform more complex revisional surgeries in less time with fewer complications. Low-experience surgeons operated more on patients with higher comorbidities but had significantly higher OR times. Long-term results of recurrence and redo-operations were comparable. These variations suggest that high-experience surgeons are more efficient while operating on more complex cases. These findings have pivotal implications to facilitate mentorship and education among less-experienced surgeons., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)