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Santiago Horgan, MD, FACS, FASMBS

U.S. Based Bariatric and Metabolic, Esophageal & Robotics Surgeon.

“The more surgeons innovate, the better our patient’s outcomes can be. The search for minimally-invasive techniques will never be complete, and I’ll never stop looking.” – Dr. Santiago Horgan



Dr. Santiago Horgan is an internationally recognized expert in robot-assisted surgery and other minimally invasive surgical techniques. Dr. Horgan is among the first surgeons trained to perform the Lap-Band Adjustable Gastric Banding System procedure used to treat obesity. As the director of UC San Diego’s Center for the Treatment of Obesity, he has performed more than 1,000 Lap-Band procedures and instructs other surgeons throughout the United States in the Lap-Band and Realize Band techniques. Also, Dr. Horgan performs other weight-loss surgeries, including gastric sleeve, gastric bypass, and gastric banding with the Realize band.

A specialist in minimally invasive surgical techniques, Dr. Horgan is skilled in using the da Vinci Surgical System, enabling surgeons to perform even the most complex and delicate procedures through tiny incisions with unmatched precision. Dr. Horgan is also a pioneer in the emerging field of Natural Orifice Transluminal Surgery (NOTES), in which surgeons pass surgical instruments through a natural orifice such as the mouth to reach the desired organ. The NOTES technique can provide patients with a faster recovery time and virtually no scarring by avoiding significant incisions. Dr. Horgan is working with colleagues at UC San Diego’s Center for the Future of Surgery to advance these scarless techniques by investigating, developing, testing, and teaching procedures that will revolutionize the field of surgery.

To date, Dr. Horgan has performed more than a dozen NOTES procedures and is involved in continuing clinical trials. Dr. Horgan is also a specialist in esophageal disorders. He uses minimally invasive procedures to treat conditions such as gastroesophageal reflux, achalasia, esophageal cancer, and Barrett’s esophagus. Before joining the UC San Diego Department of Surgery as Professor of Clinical Surgery in 2006, Dr. Horgan served as Director of the Minimally Invasive Surgery and Robotic Surgery Department and Co-Director of the Swallowing Center at the University of Illinois at Chicago. He was also Director of the Minimally Invasive Bariatric Center in Chicago. In 2005, he was named one of America’s Top Doctors by Castle Connolly Medical Ltd.

Learn more about Dr. Santiago Horgan



Medical and Surgical Training:

  • Medical Degree: Buenos Aires University School of Medicine, Buenos Aires, Argentina
  • Fellowship: University of Washington School of Medicine, Seattle, WA
  • Residency: University of Buenos Aires, School of Medicine, Buenos Aires, Argentina


One of America’s Top Doctors by Castle Connolly Medical Ltd., 2005


Robotic transhiatal esophagectomy. Dis Esophagus. 2020 Nov 26; 33(Supplement_2). Broderick RC, Horgan S, Fuchs HF. PMID: 32399553.

More beads, more peristaltic reserve, better outcomes: factors predicting postoperative dysphagia after magnetic sphincter augmentation. Surg Endosc. 2020 Oct 30. Dominguez-Profeta R, Cheverie JN, Blitzer RR, Lee AM, McClain L, Broderick RC, Sandler BJ, Jacobsen GR, Horgan S, Kunkel DC. PMID: 33128078.

Fluorescent cholangiography significantly improves patient outcomes for laparoscopic cholecystectomy. Surg Endosc. 2020 Oct 14. Broderick RC, Lee AM, Cheverie JN, Zhao B, Blitzer RR, Patel RJ, Soltero S, Sandler BJ, Jacobsen GR, Doucet JJ, Horgan S. PMID: 33052527.

Endoscopic ultrasound: a powerful tool to modify treatment algorithms in opioid-induced achalasia. Surg Endosc. 2020 Aug 26. Lee AM, Holmgren J, Broderick RC, Cheverie JN, Sandler BJ, Jacobsen GR, Kwong WT, Kunkel DC, Horgan S. PMID: 32845401.

It Takes a Village: Sleeve Gastrectomy in a Patient with Heterotaxy Syndrome and Congenital Heart Disease. Obes Surg. 2021 Feb; 31(2):862-864. Dewald SR, Wei JH, Horgan S, Grunvald E. PMID: 32691400.

Accuracy of common proton density fat fraction thresholds for magnitude- and complex-based chemical shift-encoded MRI for assessing hepatic steatosis in patients with obesity. Abdom Radiol (NY). 2020 03; 45(3):661-671. Cunha GM, Thai TT, Hamilton G, Covarrubias Y, Schlein A, Middleton MS, Wiens CN, McMillan A, Agni R, Funk LM, Campos GM, Horgan S, Jacobson G, Wolfson T, Gamst A, Schwimmer JB, Reeder SB, Sirlin CB. PMID: 31781899.

Morphology of the Esophageal Hiatus: Is It Different in 3 Types of Hiatus Hernias? J Neurogastroenterol Motil. 2020 Jan 30; 26(1):51-60. Kumar D, Zifan A, Ghahremani G, Kunkel DC, Horgan S, Mittal RK. PMID: 31677612.

Sleeve gastrectomy for treatment of delayed gastric emptying-indications, technique, and results. Langenbecks Arch Surg. 2020 Feb; 405(1):107-116. Lee AM, Fuchs KH, Varga G, Breithaupt W, Neki K, Broderick R, Horgan S. PMID: 31956952.

Laparoscopic sleeve gastrectomy for giant gastric lipoma in morbid obese patient. Cir Cir. 2020; 88(Suppl 1):39-42. Domínguez-Profeta R, Cubas RF, Broderick R, Lee A, Cheverie J, Horgan S. PMID: 32963405.

Transanal hybrid colon resection: techniques and outcomes for benign colorectal diseases. Surg Endosc. 2020 Aug; 34(8):3487-3495. Fuchs KH, Schulz T, Broderick R, Breithaupt W, Babic B, Varga G, Horgan S. PMID: 31559574.

Clinical Presentation of Gastroesophageal Reflux Disease: A Prospective Study on Symptom Diversity and Modification of Questionnaire Application. Dig Dis. 2020; 38(3):188-195. Broderick R, Fuchs KH, Breithaupt W, Varga G, Schulz T, Babic B, Lee A, Musial F, Horgan S. PMID: 31514190.

Magnetic sphincter augmentation: a viable rescue therapy for symptomatic reflux following bariatric surgery. Surg Endosc. 2020 Jul; 34(7):3211-3215. Broderick RC, Smith CD, Cheverie JN, Omelanczuk P, Lee AM, Dominguez-Profeta R, Cubas R, Jacobsen GR, Sandler BJ, Fuchs KH, Horgan S. PMID: 31485930.

Flexible Endoscopic Zenker’s Diverticulotomy with an Articulating Bipolar Energy Sealer. Otolaryngol Head Neck Surg. 2019 11; 161(5):906-908. Weissbrod PA, Jafari A, Liu S, Horgan S, Weisman RA. PMID: 31359815.

Paraesophageal hernia repair: a curative consideration for chronic anemia? Surg Endosc. 2020 May; 34(5):2243-2247. Cheverie JN, Lam J, Neki K, Broderick RC, Lee AM, Matsuzaki T, Cubas R, Sandler BJ, Jacobsen GR, Fuchs KH, Horgan S. PMID: 31346751.

Evaluation of treatment and outcomes for Hispanic patients with gastric cancer at Commission on Cancer-accredited centers in the United States. J Surg Oncol. 2019 Jun; 119(7):941-947. Zhao B, Leichman LP, Horgan S, Bouvet M, Kelly KJ. PMID: 30742314.

Pilot study on longitudinal change in pancreatic proton density fat fraction during a weight-loss surgery program in adults with obesity. J Magn Reson Imaging. 2019 10; 50(4):1092-1102. Covarrubias Y, Fowler KJ, Mamidipalli A, Hamilton G, Wolfson T, Leinhard OD, Jacobsen G, Horgan S, Schwimmer JB, Reeder SB, Sirlin CB. PMID: 30701611.

Monitoring Fatty Liver Disease with MRI Following Bariatric Surgery: A Prospective, Dual-Center Study. Radiology. 2019 03; 290(3):682-690. Pooler BD, Wiens CN, McMillan A, Artz NS, Schlein A, Covarrubias Y, Hooker J, Schwimmer JB, Funk LM, Campos GM, Greenberg JA, Jacobsen G, Horgan S, Wolfson T, Gamst AC, Sirlin CB, Reeder SB. PMID: 30561273.

The effects of provider-prescribed obesogenic drugs on post-laparoscopic sleeve gastrectomy outcomes: a retrospective cohort study. Int J Obes (Lond). 2019 06; 43(6):1154-1163. Leggett CB, Desalermos A, Brown SD, Lee E, Proudfoot JA, Horgan S, Gupta S, Grunvald E, Ho SB, Zarrinpar A. PMID: 30242239.

Robotic transanal minimally invasive surgery (TAMIS) with the newest robotic surgical platform: a multi-institutional North American experience. Surg Endosc. 2019 02; 33(2):543-548. Liu S, Suzuki T, Murray BW, Parry L, Johnson CS, Horgan S, Ramamoorthy S, Eisenstein S. PMID: 30006844.

Totally endoscopic implant to effect a gastric bypass: 12-month safety and efficacy outcomes. Surg Endosc. 2018 11; 32(11):4436-4442. Sandler BJ, Biertho L, Anvari M, Rumbaut R, Morales-Garza LA, Torres-Barrera G, Marceau S, Hong D, Smith CD, Horgan S. PMID: 29679149.

Preventing Rescue Surgeries by Endoscopic Clipping: A Valuable Resource in the Surgeon’s Toolbox. J Laparoendosc Adv Surg Tech A. 2018 Apr; 28(4):439-444. Liu S, Jacobsen GR, Sandler BJ, Savides TJ, Fehmi S, Fuchs H, Luo RB, Delong JC, Coker AM, Houghton C, Horgan S. PMID: 29432050.

Identifying lost surgical needles with visible and near infrared fluorescent light emitting microscale coating. Surgery. 2018 04; 163(4):883-888. Ward EP, Yang J, Delong JC, Sung TW, Wang J, Barback C, Mendez N, Horgan S, Trogler W, Kummel AC, Blair SL. PMID: 29338879.

How bariatric surgery affects liver volume and fat density in NAFLD patients. Surg Endosc. 2018 04; 32(4):1675-1682. PMID: 29218660.

Indocyanine green fluorescence-guided parathyroidectomy for primary hyperparathyroidism. Surgery. 2018 02; 163(2):388-392. DeLong JC, Ward EP, Lwin TM, Brumund KT, Kelly KJ, Horgan S, Bouvet M. PMID: 29129358.

Solving the surgeon ergonomic crisis with surgical exosuit. Surg Endosc. 2018 Jan; 32(1):236-244. PMID: 28643066.

Feasibility and Technique for Transvaginal Natural Orifice Transluminal Endoscopic Surgery Liver Resection: A Porcine Model. Surg Laparosc Endosc Percutan Tech. 2017 Feb; 27(1):e6-e11. PMID: 28030435.

Laparoscopic Gastropleural Fistula Repair: A Minimally Invasive Solution for a Complex Problem. J Laparoendosc Adv Surg Tech A. 2017 Apr; 27(4):416-419. PMID: 28080207.

Simple preoperative risk scale accurately predicts perioperative mortality following esophagectomy for malignancy. Dis Esophagus. 2017 01 01; 30(1):1-6. PMID: 26727414.

Complications of robotic foregut surgery: risks and advantages. Minerva Chir. 2017 Feb; 72(1):44-60. PMID: 27787481.

Peroral endoscopic myotomy after gastric bypass: An effective solution for de novo achalasia. Surg Obes Relat Dis. 2017 Feb; 13(2):e1-e3. PMID: 27916564.

Mortality after esophagectomy is heavily impacted by center volume: retrospective analysis of the Nationwide Inpatient Sample. Surg Endosc. 2017 06; 31(6):2491-2497. PMID: 27660245.

The benefits and limitations of robotic assisted transhiatal esophagectomy for esophageal cancer. J Vis Surg. 2016; 2:156. DeLong JC, Kelly KJ, Jacobsen GR, Sandler BJ, Horgan S, Bouvet M. PMID: 29078542.

Intraoperative Endoscopic Botox Injection During Total Esophagectomy Prevents the Need for Pyloromyotomy or Dilatation. J Laparoendosc Adv Surg Tech A. 2016 Jun; 26(6):433-8. PMID: 27043862.

Endoscopic revision of gastric bypass: Holy Grail or Epic fail? Surg Endosc. 2016 09; 30(9):3922-7. PMID: 26675939.

Increasing the Value of Healthcare: Improving Mortality While Reducing Cost in Bariatric Surgery. Obes Surg. 2015 Dec; 25(12):2231-8. PMID: 25986426.

Indocyanine green (ICG) fluorescence-guided laparoscopic adrenalectomy. J Surg Oncol. 2015 Nov; 112(6):650-3. PMID: 26420733.

Phase II clinical experience and long-term follow-up using the next-generation single-incision platform FMX314. Surg Endosc. 2016 Mar; 30(3):953-60. PMID: 26123331.

Quality and safety in obesity surgery-15 years of Roux-en-Y gastric bypass outcomes from a longitudinal database. Surg Obes Relat Dis. 2016 Jan; 12(1):33-40. PMID: 26164113.

Patients with psychiatric comorbidity can safely undergo bariatric surgery with equivalent success. Surg Endosc. 2016 Jan; 30(1):251-8. PMID: 25847138.

Erratum to: Reoperation rates after laparoscopic fundoplication. Surg Endosc. 2015 Mar; 29(3):515. PMID: 25575904.

Benefits of bariatric surgery do not reach obese men. J Laparoendosc Adv Surg Tech A. 2015 Mar; 25(3):196-201. PMID: 25654317.

Single-incision laparoscopic surgery through an ostomy site: a natural approach by an unnatural orifice. Surg Laparosc Endosc Percutan Tech. 2015 Feb; 25(1):74-8. PMID: 24743670.

One-year human experience with a novel endoluminal, endoscopic gastric bypass sleeve for morbid obesity. Surg Endosc. 2015 Nov; 29(11):3298-303. PMID: 25631114.

Variation of outcome and charges in operative management for diverticulitis. Surg Endosc. 2015 Nov; 29(11):3090-6. PMID: 25539698.

Concomitant cholecystectomy should be routinely performed with laparoscopic Roux-en-Y gastric bypass. Surg Endosc. 2015 Nov; 29(11):3106-11. PMID: 25515986.

Foramen of Winslow hernia: a minimally invasive approach. Surg Endosc. 2015 Aug; 29(8):2385-8. PMID: 25361659.

Laparo-endoscopic transgastric resection of gastric submucosal tumors. Surg Endosc. 2015 Aug; 29(8):2149-57. PMID: 25303921.

The price of decreased mortality in the operative management of diverticulitis. Surg Endosc. 2015 May; 29(5):1185-91. PMID: 25159639.

Alcohol metabolism is not affected by sleeve gastrectomy. Surg Endosc. 2015 May; 29(5):1088-93. PMID: 25159638.

Laparoscopic cholecystectomy using a novel single-incision surgical platform through a standard 15 mm trocar: initial experience and technical details. Surg Endosc. 2015 May; 29(5):1250-6. PMID: 25149635.

Magnetic lower esophageal sphincter augmentation device removal. Surg Endosc. 2015 Apr; 29(4):984-6. PMID: 25119542.

Reoperation rates after laparoscopic fundoplication. Surg Endosc. 2015 Mar; 29(3):510-4. PMID: 24986015.

Transanal minimally invasive surgery for benign and malignant rectal neoplasia. Am J Surg. 2014 Sep; 208(3):372-81. PMID: 24832238.

Outcomes of robotic-assisted transhiatal esophagectomy for esophageal cancer after neoadjuvant chemoradiation. J Laparoendosc Adv Surg Tech A. 2014 Feb; 24(2):89-94. PMID: 24401141.

Transvaginal organ extraction: potential for broad clinical application. Surg Endosc. 2014 Feb; 28(2):484-91. PMID: 24149847.

Screening pre-bariatric surgery patients for esophageal disease with esophageal capsule endoscopy. World J Gastroenterol. 2013 Oct 07; 19(37):6188-92. PMID: 24115815.

Transesophageal endoscopic myotomy (TEEM) for the treatment of achalasia: the United States human experience. Surg Endosc. 2013 May; 27(5):1803-9. PMID: 23525881.

TAMIS-assisted laparoscopic low anterior resection with total mesorectal excision in a cadaveric series. Surg Endosc. 2013 Sep; 27(9):3478-84. PMID: 23494511.

Broad clinical utilization of NOTES: is it safe? Surg Endosc. 2013 Jun; 27(6):1872-80. PMID: 23479251.

Initial experience with an innovative endoscopic clipping system. Surg Technol Int. 2012 Dec; 22:39-43. PMID: 23225590.

eTAMIS: endoscopic visualization for transanal minimally invasive surgery. Surg Endosc. 2013 May; 27(5):1842-5. PMID: 23179071.

The effect of restrictive bariatric surgery on urolithiasis. J Endourol. 2013 Feb; 27(2):242-4. PMID: 23006039.

Feasibility of transrectal hybrid natural orifice transluminal endoscopic surgery (NOTES) nephrectomy in the cadaveric model. Urology. 2012 Sep; 80(3):590-5. PMID: 22925236.

NOTES transvaginal hybrid cholecystectomy: the United States human experience. Surg Endosc. 2013 Feb; 27(2):514-7. PMID: 22806528.

Transgastric large-organ extraction: the initial human experience. Surg Endosc. 2013 Feb; 27(2):394-9. PMID: 22806531.

Technical aspects of robotic proctectomy. Surg Laparosc Endosc Percutan Tech. 2012 Jun; 22(3):189-93. PMID: 22678311.

Robotic-assisted laparoscopic stage II restorative proctectomy for toxic ulcerative colitis. Int J Med Robot. 2012 Jun; 8(2):178-83. PMID: 22113993.

Gastric band removal and conversion to sleeve gastrectomy for vasovagal syncopal episodes associated with adjustable gastric banding placed using pars flaccida technique. Surg Obes Relat Dis. 2012 Nov-Dec; 8(6):e75-6. PMID: 21967777.

Human experience with an endoluminal, endoscopic, gastrojejunal bypass sleeve. Surg Endosc. 2011 Sep; 25(9):3028-33. PMID: 21487876.

Transrectal hybrid natural orifice transluminal endoscopic surgery (NOTES) nephrectomy in a porcine model. Urology. 2011 Mar; 77(3):518-23. Bazzi WM, Wagner O, Stroup SP, Silberstein JL, Belkind N, Katagiri T, Paleari J, Duro A, Ramamoorthy S, Talamini MA, Horgan S, Derweesh IH. PMID: 21376997.

A laboratory training and evaluation technique for robot assisted ex vivo kidney transplantation. Int J Med Robot. 2011 Mar; 7(1):118-22. PMID: 21259416.

Estimation of hepatic proton-density fat fraction by using MR imaging at 3.0 T. Radiology. 2011 Mar; 258(3):749-59. Yokoo T, Shiehmorteza M, Hamilton G, Wolfson T, Schroeder ME, Middleton MS, Bydder M, Gamst AC, Kono Y, Kuo A, Patton HM, Horgan S, Lavine JE, Schwimmer JB, Sirlin CB. PMID: 21212366.

Video. Single-incision laparoscopic cholecystectomy. Surg Endosc. 2011 May; 25(5):1664. Thompson K, Spivack A, Fischer L, Wong B, Jacobsen G, Talamini M, Horgan S. PMID: 21069541.

Morbid obesity with achalasia: a surgical challenge. Obes Surg. 2010 Oct; 20(10):1456-8. Hagen ME, Sedrak M, Wagner OJ, Jacobsen G, Talamini M, Horgan S. PMID: 20373048.

Robotic single-incision transabdominal and transvaginal surgery: initial experience with intersecting robotic arms. Int J Med Robot. 2010 Sep; 6(3):251-5. Hagen ME, Wagner OJ, Inan I, Morel P, Fasel J, Jacobsen G, Spivack A, Thompson K, Wong B, Fischer L, Talamini M, Horgan S. PMID: 20812266.

Clinical experience with a multifunctional, flexible surgery system for endolumenal, single-port, and NOTES procedures. Surg Endosc. 2011 Feb; 25(2):586-92. Horgan S, Thompson K, Talamini M, Ferreres A, Jacobsen G, Spaun G, Cullen J, Swanstrom L. PMID: 20734085.

Fluorescence laparoscopy imaging of pancreatic tumor progression in an orthotopic mouse model. Surg Endosc. 2011 Jan; 25(1):48-54. Tran Cao HS, Kaushal S, Lee C, Snyder CS, Thompson KJ, Horgan S, Talamini MA, Hoffman RM, Bouvet M. PMID: 20533064.

Robotic vs. laparoscopic Nissen fundoplication for gastro-oesophageal reflux disease: systematic review and meta-analysis. Int J Med Robot. 2010 Jun; 6(2):125-31. Markar SR, Karthikesalingam AP, Hagen ME, Talamini M, Horgan S, Wagner OJ. PMID: 20506440.

Video. Magnetic retraction for NOTES transvaginal cholecystectomy. Surg Endosc. 2010 Sep; 24(9):2322. Horgan S, Mintz Y, Jacobsen GR, Sandler BJ, Cullen JP, Spivack A, Easter DW, Chock A, Savu MK, Ramamoorthy S, Bosia J, Agarwal S, Lukacz E, Whitcomb E, Savides T, Talamini MA. PMID: 20177916.

Incisionless revision of post-Roux-en-Y bypass stomal and pouch dilation: multicenter registry results. Surg Obes Relat Dis. 2010 May-Jun; 6(3):290-5. Horgan S, Jacobsen G, Weiss GD, Oldham JS, Denk PM, Borao F, Gorcey S, Watkins B, Mobley J, Thompson K, Spivack A, Voellinger D, Thompson C, Swanstrom L, Shah P, Haber G, Brengman M, Schroder G. PMID: 20510293.

Supra-pubic single incision cholecystectomy. J Gastrointest Surg. 2010 Feb; 14(2):404-7. Hagen ME, Wagner OJ, Thompson K, Jacobsen G, Spivack A, Wong B, Talamini M, Horgan S. PMID: 19908104.

Transrectal endoscopic retrorectal access (TERA): a novel NOTES approach to the peritoneal cavity. J Laparoendosc Adv Surg Tech A. 2009 Oct; 19(5):603-6. Ramamoorthy SL, Fischer LJ, Jacobsen G, Thompson K, Wong B, Spivack A, Cullen J, Talamini MA, Horgan S. PMID: 19715485.

The inflammatory response in transgastric surgery: gastric content leak leads to localized inflammatory response and higher adhesive disease. Surg Endosc. 2010 Mar; 24(3):531-5. Ramamoorthy SL, Lee JK, Luo L, Mintz Y, Cullen J, Easter DW, Savu MK, Chock A, Carethers J, Horgan S, Talamini MA. PMID: 19688397.

The impact of proton-pump inhibitors on intraperitoneal sepsis: a word of caution for transgastric NOTES procedures. Surg Endosc. 2010 Jan; 24(1):16-20. Ramamoorthy SL, Lee JK, Mintz Y, Cullen J, Savu MK, Easter DW, Chock A, Mittal R, Horgan S, Talamini MA. PMID: 19551440.

NOTES laparoscopic-assisted transvaginal sleeve gastrectomy in humans–description of preliminary experience in the United States. Surg Obes Relat Dis. 2009 Sep-Oct; 5(5):633-6. Fischer LJ, Jacobsen G, Wong B, Thompson K, Bosia J, Talamini M, Horgan S. PMID: 19656739.

Video. NOTES: transvaginal cholecystectomy with assisting articulating instruments. Surg Endosc. 2009 Aug; 23(8):1900. Horgan S, Mintz Y, Jacobsen GR, Sandler BJ, Cullen JP, Spivack A, Easter DW, Chock A, Savu MK, Ramamoorthy S, Bosia J, Agarwal S, Lukacz E, Whitcomb E, Savides T, Talamini MA. PMID: 19430835.

Initial experience with transvaginal incisional hernia repair. Hernia. 2010 Feb; 14(1):89-91. Jacobsen GR, Thompson K, Spivack A, Fischer L, Wong B, Cullen J, Bosia J, Whitcomb E, Lucas E, Talamini M, Horgan S. PMID: 19367443.

Natural orifice surgery: initial clinical experience. Surg Endosc. 2009 Jul; 23(7):1512-8. Horgan S, Cullen JP, Talamini MA, Mintz Y, Ferreres A, Jacobsen GR, Sandler B, Bosia J, Savides T, Easter DW, Savu MK, Ramamoorthy SL, Whitcomb E, Agarwal S, Lukacz E, Dominguez G, Ferraina P. PMID: 19343435.

Performance measures of surgeon-performed colonoscopy in a Veterans Affairs medical center. Surg Endosc. 2009 Oct; 23(10):2364-8. Tran Cao HS, Cosman BC, Devaraj B, Ramamoorthy S, Savides T, Krinsky ML, Horgan S, Talamini MA, Savu MK. PMID: 19266235.

Women’s positive perception of transvaginal NOTES surgery. Surg Endosc. 2009 Aug; 23(8):1770-4. Peterson CY, Ramamoorthy S, Andrews B, Horgan S, Talamini M, Chock A. PMID: 19057953.

NOTES: a review of the technical problems encountered and their solutions. J Laparoendosc Adv Surg Tech A. 2008 Aug; 18(4):583-7. Mintz Y, Horgan S, Cullen J, Stuart D, Falor E, Talamini MA. PMID: 18721009.

Hybrid natural orifice translumenal surgery (NOTES) sleeve gastrectomy: a feasibility study using an animal model. Surg Endosc. 2008 Aug; 22(8):1798-802. Mintz Y, Horgan S, Savu MK, Cullen J, Chock A, Ramamoorthy S, Easter DW, Talamini MA. PMID: 18437477.

Dual-lumen natural orifice translumenal endoscopic surgery (NOTES): a new method for performing a safe anastomosis. Surg Endosc. 2008 Feb; 22(2):348-51. Mintz Y, Horgan S, Cullen J, Falor E, Talamini MA. PMID: 18027036.

NOTES: the hybrid technique. J Laparoendosc Adv Surg Tech A. 2007 Aug; 17(4):402-6. Mintz Y, Horgan S, Cullen J, Ramamoorthy S, Chock A, Savu MK, Easter DW, Talamini MA. PMID: 17705716.


Comparing OCC to Other Weight Loss Surgeons


  • 50 Years combined experience

  • Proven/published safety track record

  • Trademark innovations & techniques

  • Safest Most effective procedures

  • No brokers / middlemen


  • New to the industry

  • Hearsay

  • Conventional

  • Unverified claims

  • Brokers fee up to 30%, low budget surgical team

Obesity Control Center is considered one of the best facilities for weight loss surgery — not only in Mexico, but the world. Our award-winning team of bariatric surgeons have a combined 50 years of experience with over 25,000 successful bariatric surgery procedures to our credit. We were one of the first centers to perform bariatric surgery anywhere in the world.

Because Obesity Control Center holds itself to the most rigorous medical and safety standards found anywhere in the world, patients from Mexico, the United States and every corner of the globe seek care from our weight loss surgeons. We are fully accredited as a Center of Excellence in Bariatric and Metabolic Surgery. We also have been awarded the Golden Seal by Joint Commission International, a distinction recognizing our highest standards of safety: a complication rate of less than 1%.

Three master bariatric surgeons — Dr. Ariel Ortiz, Dr. Arturo Martinez and Dr. Santiago Horgan — care for every patient. That means that Obesity Control Center patients are always in the hands of a world-renowned and highly trained surgeon. Our surgeons are pioneers in the field, with accomplishments that include being the first to provide teenage obesity treatments and creating the IGS Improve Gastric Sleeve®, the Stomach Sparing Gastric Sleeve® and the Double-Buttress Sewing Technique.

At our state-of-the-art facility, our surgeons offer several types of weight loss surgery, including gastric bypass, gastric sleeve, lap band surgery and gastric plication. During the consultation phase, the weight loss surgeons will evaluate each patient individually to create a customized surgical plan that considers the patient’s goals, concerns, preferences and medical history.

Dr. Ortiz, Dr. Martinez and Dr. Horgan received their advanced education in bariatric surgery at elite educational institutions and have been invited to instruct the next generation of weight loss surgeons as professors and guest lecturers. In addition to changing their patients’ lives with bariatric surgery, they are innovators in their field who have developed safer and more efficient ways to perform weight loss surgery.

The entirety of Obesity Control Center’s staff in Tijuana is just as beloved by patients. We offer five-star accommodations to our medical tourism patients, with round-the-clock concierge service. It is our pleasure to ensure that you travel to and from our weight loss center safely and comfortably.

Another reason patients choose Obesity Control Center is because our surgeons and staff care about our patients’ well-being well after they return home from bariatric surgery. We commit to providing five years of postoperative care, including a personalized nutrition and exercise plan, so that patients meet their goals and feel adequately supported during their weight loss journey.

Obesity Control Center Exterior in Tijuana, Mexico

Medical Tourism

Travel for Obesity Control Center in Tijuana, Mexico

It is completely safe to travel to Mexico and have surgery with us at OCC. Over 100 people from the USA come to Mexico every single month to have surgery with Dr. Ortiz or Dr. Martinez and achieve optimal results. We even take care of patients by shuttling them between the hotel and hospital, as well as across the border.

We have passed the most rigorous accreditations and now display a List of Awards and Designations of Quality bestowed upon the Hospital and the Surgeons. In order for the Obesity Control Center to be awarded the various distinctions and designations by third party quality accreditation organizations, we had to go through rigorous year-long reviews that examined every aspect of our practice, including the staff, surgeons, and facilities. We are one of only a few international hospitals to be awarded these designations. We are fully accredited as a Center of Excellence in Bariatric and Metabolic Surgery and our Surgeons have been designated Surgeons of Excellence in Bariatric and Metabolic Surgery, and have also obtained the Golden Seal awarded by the Joint Commission International that signifies that we have met the highest standards in patient safety and quality available in healthcare.

If you have any questions or concerns about traveling to Mexico for bariatric surgery, please contact The Obesity Control Center. A member of our team would be happy to speak to you about what you can expect during your weight-loss surgery process.

Learn More

Obesity Control Center

The OCC Difference: OCC Patients Lose More Weight & Keep It Off

An innovative, and industry-leading metabolic weight loss center of excellence that helps people from around the world achieve their weight loss goals using lifestyle changes and the most modern and safe techniques in bariatric surgery.

  1. Highest Safety Standards

    Fully Accredited and follow the highest US medical safety standards. Lowest complication and infection rate with a 20+ year track record of successful surgeries.

  2. Cutting-Edge Innovation & Experience

    Pioneered multiple techniques used around the world, such as the IGS Improved Gastric Sleeve®. Co-developed the gastric balloon & The OCC Double Buttress Technique™. Performed over 25,000 successful procedures.

  3. Comprehensive 5 Year Post-Op Care

    OCC guides you through five years of post-op care through our app, online support groups, and US-based on-call patient coordinators. You become part of the #OCCFamily for life.

  4. All-Inclusive Concierge Service

    Includes service to and from the airport, guidance over the border, and five-star accommodations. OCC is your partner from initial consultation to five years of post-surgery follow-up.

  5. Fast Track Surgery

    Work with patients to get them safely prepared from consultation to surgery in as fast as 4-6 weeks.