Tonantzin Matheus, MD

Florida Digestive Disease Specialists

6600 University Pkwy, Suite 301
Lakewood Ranch, FL 34240
Phone: (941) 361-1100
Fax: (941) 361-1103

Procedure Location(s)

3325 South Tamiami Trail
Suite 100
Sarasota, FL 34239
Phone: (941) 552-3480
Fax: (941) 552-3485

Personal Information

Dr. Matheus is board certified in both gastroenterology and internal medicine. She specializes in colorectal screening and GERD/dysphagia and has advanced training in esophageal disorders, including swallowing problems, reflux and digestive tract motility. Dr. Matheus performs in-office capsule endoscopy and colonoscopy screenings and has been practicing for nearly 20 years. Fluent in Spanish and English, she enjoys taking time with her patients to ensure they are fully informed and their questions are answered.

“I treat patients at all stages of digestive health, from those who have been suffering for years to patients who are experiencing uncomfortable symptoms that are new to them. Each of them is seeking answers and a path to health. Our team takes the time we need to empathize and deeply understand our patients’ lives and the factors affecting their condition. Education is imperative to helping patients regain their quality of life. I strive to combine professionalism, advanced treatments and compassion to amplify our patient’s chance at a healthy, active life.”


  • HCA Florida Sarasota Doctors Hospital
  • Lakewood Ranch Medical Center


  • American Board of Internal Medicine – Gastroenterology Certification

Academic Degrees

  • Gastroenterology Fellowship: Einstein Medical Center Philadelphia
  • Internal Medicine Residency: Einstein Medical Center Philadelphia
  • Medical School: Universidad Central de Venezuela


  • Colorectal Screening, Esophageal Disease, GERD/Dysphagia

    Professional Associations

    • American College of Physicians
    • American Medical Association
    • American Gastroenterology Association
    • American College of Gastroenterology
    • American Society for Gastrointestinal Endoscopy
    • American Association for the Study of Liver Diseases
    • Florida Gastroenterology Association