Dr. Guillermo Ponce de León Ballesteros received his degree in Surgery from the Mexican School of Medicine of La Salle University, where he graduated third in his class. He is a specialist in General Surgery from the Universidad Nacional Autónoma de México, having completed his specialty at the Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán. In addition, he is an endocrine surgeon graduated from said institute and a bariatric surgeon graduated from the ABC Medical Center and Mohak Hospital in India. He is certified by the National Regulatory Committee of Medical Specialties Councils (CONACEM) and the Mexican Council of General Surgery, both for general surgery and bariatric surgery. He has made training stays abroad, including the University Hospital of Birmingham (Alabama, USA) and MD Anderson Cancer Center (Houston, Texas, USA). He completed the Clinical Fellowship in Bariatric Surgery at Mohak Bariatrics and Robotics Hospital (Indore, India), which is the center with the highest volume of bariatric surgery in Asia-Pacific. Dr. Ponce de Leon has participated in more than 450 bariatric procedures since his training. In addition, he is a member of the Mexican College of Surgery for Obesity and Metabolic Diseases (CMCOEM), the International Federation of Surgery for Obesity (IFSO), the Mexican Association of General Surgery (AMCG) and the European Endoscopic Surgery Society (EAES). He has participated as a speaker and professor in multiple national and international congresses, where he has also been recognized with several awards for the quality of the work presented. He has multiple publications in journals of great international impact in the areas of: endocrine surgery, bariatric surgery and general surgery. His main interest is in bariatric surgery and its metabolic effect, as well as in thyroid and parathyroid surgery, fields in which he has made multiple publications in high impact international journals.
Selected publications from PubMed
International expert consensus on definitions and management of weight recurrence and suboptimal response after metabolic and bariatric surgery: a Delphi study.
Wills MV, Lee S, Mocanu V, Lee Y, Kachornvitaya P, Zhu X, Alfaris N, Andromalos L, Apovian C, Behrens E, Birk D, Busetto L, Courcoulas A, Cummings D, Faria SL, Ghanem O, Han SM, Karmali S, Kaplan L, Kow L, le Roux CW, Mahawar K, Gawdat K, Munoz R, Musella M, Nimeri A, O'Kane M, Palermo M, Ponce de Leon Ballesteros G, Salminen P, Sullivan S, Udomsawaengsup S, Tewksbury C, Vidal J, Wilding J, Dang J, Strong A, Navarrete S, Zundel N, Kermansaravi M, Butsch S, Kroh M, Corcelles R
Surg Obes Relat Dis. 2026 Jul;22(7):753-761 doi: 10.1016/j.soard.2026.03.006.
Perioperative Outcomes Following Single-Anastomosis Duodeno-Ileal Bypass with Sleeve Gastrectomy (SADI-S): Analysis of a National Multicenter Mexican Cohort.
Ponce de Leon-Ballesteros G, Rodriguez-Lopez C, Martinez-Castro S, Perez-Padron C, Garcia-Govea F, Garza-Torres C, Gutierrez-Rojas CA, Lopez-Ortega A, Meza-Jasso MA, Ortiz-Gomez JE, Padilla L, Pompa-Gonzalez LM, Ponce de Leon-Palomares J, Rodriguez-Villareal J, Romero-Manzano J, Sanchez-Aguilar HA, Vidrio-Duarte E, Villalobos J, Verboonen S, Herrera MF, Zerrweck C
Obes Surg. 2026 Apr;36(4):1841-1848 doi: 10.1007/s11695-026-08617-1.
Single Anastomosis Duodeno-Ileostomy with Sleeve Gastrectomy/Single Anastomosis Duodenal Switch (SADI-S/SADS) IFSO Position Statement-Update 2023.
Ponce de Leon-Ballesteros G, Romero-Velez G, Higa K, Himpens J, O' Kane M, Torres A, Prager G, Herrera MF
Obes Surg. 2024 Oct;34(10):3639-3685 doi: 10.1007/s11695-024-07490-0.
Metabolic and Bariatric Surgery in Patients with Obesity Class V (BMI > 60 kg/m(2)): a Modified Delphi Study.
Ponce de Leon-Ballesteros G, Pouwels S, Romero-Velez G, Aminian A, Angrisani L, Bhandari M, Brown W, Copaescu C, De Luca M, Fobi M, Ghanem OM, Hasenberg T, Herrera MF, Herrera-Kok JH, Himpens J, Kow L, Kroh M, Kurian M, Musella M, Narwaria M, Noel P, Pantoja JP, Ponce J, Prager G, Ramos A, Ribeiro R, Ruiz-Ucar E, Salminen P, Shikora S, Small P, Stier C, Taha S, Taskin EH, Torres A, Vaz C, Vilallonga R, Verboonen S, Zerrweck C, Zundel N, Parmar C
Obes Surg. 2024 Mar;34(3):790-813 doi: 10.1007/s11695-023-06990-9.
Comparison of Outcomes Between Banded and Non-banded Sleeve Gastrectomy: a Systematic Review and Meta-analysis.
Ponce de Leon-Ballesteros G, Romero-Velez G, Martinez-Portilla RJ, Pereira X, Roy-Garcia I, Fobi MAL, Herrera MF
Obes Surg. 2022 Jul;32(7):1-12 doi: 10.1007/s11695-022-06043-7.
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