Dr. Lucak is a Special Lecturer in the Division of Digestive and Liver Diseases at Columbia University Medical Center, New York City.  For the past fifteen years, her practice has focused on functional bowel disorders including irritable bowel syndrome, chronic abdominal pain, non-cardiac chest pain, chronic constipation, persistent nausea and vomiting, bloating, diarrhea, and fecal urgency. 

Her research efforts have centered on evaluating the clinical efficacy and safety of IBS treatments and on various clinical aspects of functional gastrointestinal disorders.  She is collaborating with other experts in the US on a project entitled Patient Reported Observed Outcomes and function (PROOF).  This is designed to help improve the care provided to IBS patients by learning more about how people with IBS experience their symptoms.  

Furthermore, she is a member of the International Foundation for Functional Gastrointestinal Disorders and is actively involved in lobbying the Congress to provide research support for gastrointestinal disorders.  Dr. Lucak educates both other physicians and patients on functional bowel disorders, particularly IBS.  She has lectured widely in the United States and abroad.

Dr. Lucak has been selected among the top 5% of New York City physicians in Gastroenterology by her peers as listed in the Super Doctors section of The New York Times Magazine for 2009 and 2010. She was also named in Castle Connolly's "Top Doctors"  New York Metro Area in 2011.