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Use the sliders to determine your Body Mass Index (BMI), and whether or not you should contact OCC to schedule a weight loss surgery consultation.

BMI Categories

Underweight < 18.5
Normal weight 18.5 - 24.9
Overweight 25 - 29.9
Obesity BMI of 30 or greater

Your Weight: 184 pounds


Your Height: 5' 4"

Your BMI: 32
Surgery Recommended
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Marcos Castaneda, MD

Bariatric Surgeon

“The time to change your health and your body is NOW!” – Dr. Marcos Castaneda

  • 14

    years of experience



Dr. Marcos Castaneda has impacted the bariatric surgery programs at each hospital he’s served. At the Secretariat of Health of the Government of Mexico City, he implemented and developed the first bariatric surgery program in a Mexico City government hospital and performed more than 600 bariatric procedures during the three years he practiced there. He also taught colleagues there, establishing the hospital’s first formal bariatric surgery course. At the ObesCenter Medical Comprehensive Obesity Clinic in Mexico, Dr. Castaneda continued this legacy as the facility’s managing director, performing more than 1,000 bariatric procedures and continuing to instruct his colleagues in surgical techniques.

Dr. Castaneda currently serves as the head of the general surgery service at the Regional Hospital Tlalnepantla ISSEMYM in the State of Mexico. He’s established the facility’s esophageal, hernia, and bariatric surgery programs, as well as the Minimally Invasive Surgery Advanced Program, where he trains fellow surgeons in minimally invasive surgical techniques.



Medical and Surgical Training

  • Medical Degree: Benemérita Autonomous University of Puebla, 1997, General Medicine
  • Residency: National Autonomous University of Mexico, 2004, General Surgery
  • Medical and Surgical Training: GastroObeso Center in Sao Paulo, Brazil, 2007, Bariatric Surgery, Hernia University in New York, 2019, Hernia Surgery


Board Certifications

Certified by the Mexican Council of General Surgery

Certified by the Mexican College of Surgery for Obesity and Metaolic Diseases

Active member of the Mexican College of Obesity and Disease Surgery (CMCOEM)

Active member of the Mexican Association of General Surgery (AMCG)

Active member of the Mexican Association of Endoscopic Surgery (AMCE)

Academic Appointments

Titular Professor of General Surgery Residency at the Regional Hospital ISSEMYM

Titular Professor of Surgical Clinics at the FES Iztacala of the Universidad Autónoma de México

Associate professor in the diploma “Surgical and Multidisciplinary Management of Obesity” at
the Department of Surgery, Faculty of Medicine of the Universidad Autónoma de México

Thesis advisor for a degree in the specialty of General Surgery at the Universida Autónoma del
Estado de México (UAEM)

Synodal of the Faculty of Medicine of the Universidad Autónoma del Estado de Mexico (UAEM)
for former professionals

Sindoal to accredit Bariatric Surgeons of the Mexican College of Surgery for Obesity and
Metabolic Diseases (CMCOEM) and the Consejo Mexicano de Cirugía General (CMCG)



Cobos GE, Valdespino CVE, Romero AE, et al. Jejunal perforation in a patient with acute pancreatitis. Report of a case. Cir Gen. 2005; 27 (2): 152-155.

Varela GG, Castañeda OME. Hemorrhoidopexy with PPH 03 circular stapler. Initial experience. Rev Gastroenterol Mex. 2006; 71 (3): 288-295.

Ruiz Speare J.O. The 20 most frequent problems in surgery. Mexico. Anorectal Diseases. Chapter 6, Ed. Alfil, 2006: 103-124.

Marcos Ponce de León Espíndola, Arturo A. Rodríguez González, Adriana E. Liceaga Fuentes, Francisco J. Campos Pérez, Marcos Castañeda Ortiz, Antonio Spaventa Ibarrola. Laparoscopic sleeve gastrectomy. Experience in patients with super-obesity at the General Hospital «Dr. Rubén Leñero »” Endoscopic Surgery. Vol. 12. No. 1; 2011

“Laparoscopic Gastric Bypass versus Laparoscopic Vertical Sleeve Gastrectomy. Short-term results in an Obesity Clinic of the Government of the Federal District ”. Arturo A Rodríguez, Marcos Ponce de León, Antonio Spaventa, Adriana Liceaga, Marcos Castañeda, Rocío Pérez, Karen Romay, Francisco Campos. Endoscopic Surgery. Vol. 12. No. 1; 2011

Laparoscopic Gastric Bypass Versus Laparoscopic Sleeve Gastrectomy; Short Term Results in the First Obesity Clinic of the Government of Mexico City. A.A. Rodríguez, M. Ponce de León, A.G. Spaventa1, A.E. Liceaga, E.M. Castañeda, R. Pérez2, K. Romay, F.J. Fields. OBES SURG (2011) 21: 956–1156

“Internal Hernia of the Petersen Space after Laparoscopic gastric Bypass” Fernandez Silva E. Castañeda OEM, Spaventa IA, Liceaga FAE, Carvajal VC. XIII International Congress of Endoscopic Surgery, April 2012

“Gastric Bezoar as a Complication of Laparoscopic Gastric Bypass En-Y de Roux. Report of a case ”Elisa M Sepulveda Guerrero J Francisco Campos Pérez, Antonio G Spaventa Ibarrola, Marcos Castañeda Ortiz, Itzel E Fernández Silva, Edith Barajas Galicia, Jorge Welsh Rodríguez, Felipe De J Martínez Martínez, Diego Angulo Molina. XXXVI International Congress of General Surgery. Cancun, Mex. October- November 2012

“Experience in the Endoscopic Treatment of Patients with Gastrocutaneous Fistula Undergoing Gastric Bypass at the Dr. Rubén Leñero General Hospital” Edith Barajas Galicia, Martínez MFJ, Campos PF, Spaventa IA Castañeda E. Marcos, Sepulveda GEM, Welsh R. the 40th National Meeting of Gastrointestinal Endoscopy.

“Incidenceoffistulainahospitalwithinitialexperienceinbariatricsurgery”E.MarcosCastañeda Ortiz, Spaventa IA, Liceaga FA, Campos PJF. XIX International Congress of Endoscopic Surgery, May 2010

Initial experience in a comprehensive obesity clinic in a Federal District government hospital ”Antonio Spaventa Ibarrola, Castañeda OM, Liceaga FA, Trejo SS, Chávez CC, Rumbo NU, Campos PF. XIX International Congress of Endoscopic Surgery, May 2010

“Simplified Gastric Bypass: An Approach to the Management of Morbid Obesity in 2500 Cases”. General Surgeon. XXX International Congress of General Surgery. November 2006.

“Laparoscopic Gastric Bypass Band as Revision Surgery in 31 patients” General Surgeon. XXX International Congress of General Surgery. November 2006.

“Conversion of Adjustable Gastric Band to Gastric Bypass with Laproscopic Ring Placement in a Surgical Time”. presenting video work in the Bariatric Surgery module. XXX International Congress of General Surgery. November 2006.


Dare to Compare


  • 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

Medical Tourism

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.