Zachary Callahan MD
Bariatric Surgery, Minimally Invasive Surgery
Physician
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410 42nd Ave NSte 400Nashville, TN 37209
Phone+1 615-329-7887
Fax+1 615-340-4537
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Summary
- Dr. Zachary Callahan is a minimally invasive/bariatric surgeon and surgical endoscopist at Nashville Surgical Associates. He graduated Alpha Omega Alpha from University of Cincinnati College of Medicine and completed surgical residency at Thomas Jefferson University Hospital. He completed a 1 year minimally invasive surgery (MIS) fellowship at Northshore University HealthSystem under Dr. Mike Ujiki which is accredited in four categories of MIS training including Advanced GI MIS, Bariatric, Comprehensive Flexible Endoscopy, and Foregut. He has more than 30 publications and over 200 citings.
Education & Training
Sidney Kimmel Medical College at Thomas Jefferson University/TJUHResidency, Surgery, 2015 - 2021- Sidney Kimmel Medical College at Thomas Jefferson University/TJUHResidency, Surgery, 2015 - 2020
University of Cincinnati College of MedicineClass of 2015
Certifications & Licensure
TN State Medical License 2022 - 2028
IL State Medical License 2018 - 2023
PA State Medical License 2015 - 2022
American Board of Surgery Surgery
Awards, Honors, & Recognition
- Inductee Alpha Omega Alpha Honor Medical Society
Publications & Presentations
PubMed
- Establishing standards of practice for transoral outlet reduction: an expert consensus using a modified Delphi method.Thomas R McCarty, Rashmi Advani, Christopher E McGowan, Michael B Ujiki, Sergio Sánchez-Luna
Gastrointestinal Endoscopy. 2026-04-01 - 1 citationsCharacterizing the General Surgery Experience of Future Breast Surgeons: A Multi-institutional Study from the US ROPE Consortium.Anna M Reagan, V Morgan Jones, Irada Ibrahim-Zada, Savannah R Smith, Lauren M Postlewait
Annals of Surgical Oncology. 2025-10-01 - 7 citationsA multi-institutional study from the US ROPE consortium examining factors associated with endocrine surgery exposure for general surgery residents.Stephanie Sisak, Adam D Price, Darci C Foote, Kelsey B Montgomery, Brenessa Lindeman
Surgery. 2024-01-01
Press Mentions
Surgical Endoscopy Series Ep. 4: Endoscopic Management of ComplicationsJuly 27th, 2023- Surgical Endoscopy Series Ep. 4: Endoscopic Management of ComplicationsJanuary 20th, 2026
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