When it comes to digestive health, choosing the right gastroenterologist can make all the difference. Miami is home to a wealth of talented, compassionate, and highly trained gastrointestinal specialists who provide world-class care. From preventive screenings and colonoscopies to advanced treatments for inflammatory bowel disease (IBD), these experts are leading the way in personalized digestive health. Whether you’re looking for someone who takes a holistic approach or a top-tier specialist affiliated with a major hospital, Miami has a physician to match your needs. Below, we explore in depth the city’s best gastroenterologists — their specialties, credentials, patient reviews, and how to contact them.
Dr. Vanessa Mendez is a standout physician in Miami’s gastroenterology community. She is triple board-certified in gastroenterology, internal medicine, and lifestyle medicine, which allows her to combine evidence-based medicine with nutrition and holistic care. Dr. Mendez takes time to help patients understand how their lifestyle choices affect digestion, liver health, and gut microbiome balance.
Her practice integrates advanced diagnostic tools and preventive care for conditions such as IBD, liver disease, IBS, GERD, and food intolerances. Patients appreciate her empathetic bedside manner and emphasis on education, making her a favorite for both English- and Spanish-speaking residents.
Beyond her clinical expertise, Dr. Mendez is an advocate for lifestyle-based disease prevention and women’s health in gastroenterology. Her bilingual communication and warm, thorough approach make her one of the most trusted specialists in the region.
At Mount Sinai Medical Center in Miami Beach, Dr. Jonathan Mazurek offers a blend of academic training and patient-focused care. A board-certified gastroenterologist, Dr. Mazurek specializes in managing Crohn’s disease, ulcerative colitis, GERD, liver disorders, and irritable bowel syndrome (IBS). He’s known for his methodical, data-driven approach, ensuring every diagnosis is supported by the latest testing and imaging technologies.
His patients describe him as a great communicator who listens carefully and explains complex gastrointestinal issues in a way that makes sense. This has earned him one of the highest patient satisfaction scores in the Mount Sinai network.
Dr. Mazurek’s combination of cutting-edge treatment and approachable style makes him ideal for patients who want to feel both informed and cared for throughout their treatment journey.
With more than 25 years of experience, Dr. Joel Kertznus has become a trusted name in gastroenterology across South Florida. His expertise spans a wide range of digestive issues, including esophageal disorders, chronic acid reflux, stomach ulcers, and colon health. Patients value his clear communication and the personalized attention he provides during every appointment.
Dr. Kertznus performs advanced endoscopic procedures and is known for ensuring patient comfort before, during, and after each exam. His commitment to preventive screenings and early detection of colon cancer has made him a cornerstone of community digestive health in Miami.
Dr. Kertznus’s deep understanding of both gastrointestinal and esophageal conditions makes him an excellent option for patients suffering from reflux, swallowing issues, or chronic stomach pain.
Practicing since 1997, Dr. Jose L. Martinez brings decades of experience and precision to his role as one of Miami’s leading gastroenterologists. His work focuses on colorectal cancer screening, colonoscopy procedures, liver disease, and chronic abdominal disorders. Known for his calm demeanor and patience, Dr. Martinez has guided thousands of patients through successful diagnostic and preventive care programs.
He’s also part of multiple hospital networks, giving his patients access to advanced imaging centers and minimally invasive treatment options. Many of his long-term patients praise him for being “the doctor who never rushes,” a testament to his dedication and professionalism.
Dr. Martinez is also known for mentoring young physicians and contributing to educational seminars on early colon cancer prevention. His long-standing reputation and strong ethical foundation make him one of Miami’s most respected digestive health experts.
Dr. Grigoriy Rapoport represents the new generation of academic gastroenterologists, blending research-based methods with hands-on patient care. As a part of the University of Miami Health System, he specializes in diagnostic and therapeutic endoscopy, inflammatory bowel disease management, and functional gastrointestinal disorders.
Dr. Rapoport’s multilingual abilities allow him to connect with Miami’s diverse patient population, and his approach emphasizes a balance of advanced medical science and personalized care. Patients consistently describe him as attentive, detail-oriented, and passionate about education.
Dr. Rapoport is a strong advocate for preventive GI care, encouraging patients to schedule regular colonoscopies and to take early symptoms seriously. His combination of empathy and academic excellence has earned him recognition among Miami’s medical elite.
Few names in gastroenterology command as much respect as Dr. Maria T. Abreu. She is a global authority in Crohn’s disease and ulcerative colitis, directing the Crohn’s & Colitis Center at the University of Miami. As the 2024–2025 President of the American Gastroenterological Association (AGA), she has shaped national guidelines for IBD management and continues to lead groundbreaking research in gut inflammation.
Dr. Abreu’s clinical approach integrates precision medicine and patient education. She leads a multidisciplinary team that includes nutritionists, IBD nurse coordinators, and researchers, ensuring every patient receives comprehensive, personalized treatment.
Dr. Abreu’s groundbreaking research and compassionate patient care have made her an international thought leader. She remains dedicated to improving outcomes for IBD patients and advancing women’s representation in medicine.
Finding the best gastroenterologist involves more than checking reviews. Here’s what to consider when making your decision:
Miami’s medical community stands out for its innovation and cultural diversity. Patients can find doctors fluent in multiple languages, offering both local expertise and global standards of care. Whether you’re booking a routine colonoscopy or seeking complex IBD management, these physicians provide a combination of skill, compassion, and reliability that defines Miami’s healthcare excellence.
From Dr. Mendez’s lifestyle-based approach to Dr. Abreu’s world-renowned IBD expertise, Miami’s top gastroenterologists embody the highest standards in digestive medicine. With their blend of medical innovation, cultural sensitivity, and patient-centered philosophy, they ensure that everyone — from lifelong residents to international visitors — can access outstanding digestive care in South Florida.
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