

Dr. Zachary Callahan, MD
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Dr. Zachary Callahan, MD
General Surgery
Dr. Zachary Callahan, MD is a general surgeon in Nashville, TN. He is affiliated with TriStar Centennial Medical Center. He is accepting new patients.
Locations
Nashville Surgical Associates
Hospital Highlight
Dr. Callahan is affiliated with TriStar Centennial Medical Center Nashville, a highly rated and top awarded hospital for general surgery.
At a Glance
- Practices at Top Hospital • America’s 100 Best Hospitals for Gastrointestinal Care Award™ See hospitals
- Hospital Satisfaction • Patients said they were highly satisfied at this doctor's hospital. See hospitals
More General Surgery Specialists at TriStar Centennial Medical Center
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Dr. Callahan's Reviews
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About Me
care philosophy
Dr. Callahan specializes in minimally invasive general surgery including weight-loss surgery.He is fellowship-trained in primary and revisional weight-loss surgery including both traditional robotic procedures (sleeve gastrectomy, gastric bypass,...read moreGeneral Surgery
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Northshore University Health System
Fellowship Hospital, 2022Thomas Jefferson University Hospital
Residency Hospital, 2021Thomas Jefferson University Hospital
Internship Hospital, 2016
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Learn more about medical license public record checkAffiliated Hospitals
- Recipient of 60
hospital awardsAmerica’s 100 Best Hospitals for Gastrointestinal Care Award™ (2025, 2024)
Superior clinical outcomes in bowel obstruction treatment, colorectal surgeries, gallbladder removal, and upper gastrointestinal surgery
View all awardsAmerica’s 100 Best Hospitals for Gastrointestinal Surgery Award™ (2025, 2024)
Superior clinical outcomes in bowel obstruction treatment, colorectal surgeries, gallbladder removal, and upper gastrointestinal surgery
View all patient feedbackHow patients felt about the care they received at this hospital.
84%Patients said they were given information about recovering at home82%Patients said that doctors always listened to them and explained things well6% higher than the national average