Dr. Cesar Antonio Martinez Ortiz is specialist in General, Digestive and Bariatric/Metabolic Surgery, certified by the National Regulatory Committee of Medical Specialty Councils (CONACEM), the Mexican Council of General Surgery (CMCG), the Mexican College of Surgery for Obesity and Metabolic Diseases (CMCOEM), the International Federation for the Study of Obesity (IFSO) and the American College of Surgeons (ACS).

Throughout his professional career, he has dedicated his life to improving the health and well-being of his patients, helping them achieve their health goals and live a fuller life.
Dr. Ortiz is the founder and director of Clinice Medical Group and Obesity Science, its department specializing in bariatrics, a certified center for the diagnosis and comprehensive treatment of obesity and its related conditions. Our team is made up of nationally and internationally recognized experts, committed to providing excellent and personalized medical care. In addition, Dr. Ortiz is Chief of the Division of Surgery, the Department of General Surgery and the Bariatric/Metabolic Surgery Clinic, and Professor of Surgery at the Specialty Hospital of the National Medical Center Siglo XXI (Instituto Mexicano del Seguro Social, IMSS), the top public hospital in Mexico according to Newsweek.
At Obesity Science®, we understand that every patient is unique, and that is why we offer treatments tailored to the specific needs of everyone, following current guidelines. Our comprehensive approach not only focuses on weight loss, but also on the treatment of associated metabolic conditions. We are proud to use the most advanced techniques and innovative treatments in the field of bariatric and metabolic surgery. Our mission is to provide effective solutions that not only improve the quality of life of our patients but also promote long-lasting health.

Certifications & Memberships
Certifications:
- Mexican Board of General Surgery
- Mexican College of Surgery for Obesity and Metabolic Diseases (CONACEM: C-10007610 and B170027)
Memberships:
- Asociación Mexicana de Cirugía General (AMCG), AC
- Colegio de Postgraduados en Cirugía General, AC
- Federación Nacional de Colegios de Especialistas en Cirugía General, AC
- Federación Latinoamericana de Cirugía (FELAC)
- Asociación Latinoamericana de Cirugía Endoscópica (ALACE)
- Asociación Mexicana de Cirugía Endoscópica (AMCE), AC
- Colegio Mexicano de Cirugía Endoscópica, AC
- Colegio Mexicano de Cirugía para la Obesidad y Enfermedades Metabólicas (CMCOEM), AC
- International Bariatric Club (IBC)
- International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO)
- Asociación Mexicana de Cirugía Robótica (AMCIR)
- American College of Surgeons (ACS)
Our Services
Bariatric Surgery
A proven and effective long-term solution for obesity and associated diseases. Bariatric surgery can significantly improve overall health and quality of life.
Metabolic Surgery
Designed for patients with diabetes, dyslipidemia, or hypertension that have not been well-controlled through traditional treatments.
Nutritional Counseling
Proper nutrition is essential for maintaining optimal health, growth, and development. Our specialists provide tailored meal plans and dietary guidance to help maintain a healthy lifestyle post-surgery.
Surgical Procedures
Gastric Bypass
- Considered the “gold standard” of weight loss surgery.
- Offers effective and sustainable results by altering the digestive process.
Sleeve Gastrectomy
- Removes approximately 80% of the stomach.
- Helps reduce hunger and promotes significant weight loss.
Gastric Banding
- Creates a small stomach pouch to limit food intake.
- Adjustable and reversible procedure.
Gastric Balloon
- A non-surgical solution to assist with weight loss.
- Helps patients adopt healthier eating habits.
Why Choose Dr. César Martínez?
Certified Specialist
A highly trained and experienced professional dedicated to patient safety and success.
Multidisciplinary Approach
Combining surgical expertise with nutritional and psychological support for optimal results.
Patient-Centered Care
We prioritize your comfort, health, and long-term well-being.
Testimonials
“Very good attention from the doctor. Everything was explained with respect and empathy. He has great experience and professionalism.” – MGC
“I took my daughter, and the doctor was very dedicated. He explained everything thoroughly and was always attentive. Excellent care!” – MECJ
“Excellent, extremely professional! The best bariatric surgeon in Mexico. Highly recommended.” – DUGC
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