Physicians and Scientists

Patient Care and Clinical Research

Ira Jacobson, M.D.
Vincent Astor Professor of Clinical Medicine and Chief,
Division of Gastroenterology
Weill Cornell Medical College
Medical Director, Center for Study of Hepatitis C

Debbie Dimanche
Administrator, Division of Gastroenterology and Hepatology

Kristen Marks, M.D.
Assistant Professor of Medicine
Weill Cornell Medical College
Assistant Attending Physician
NewYork-Presbyterian Hospital

Ype de Jong, M.D., Ph.D.
Assistant Professor of Medicine
Weill Cornell Medical College
Assistant Attending Physician
NewYork-Presbyterian Hospital

Sonal Kumar, M.D.
Assistant Professor of Medicine
Weill Cornell Medical College
Assistant Attending Physician
NewYork-Presbyterian Hospital

Lori Ciniglio
Executive Assistant/ Practice Specialist

Beatrice Mesidor, CNT
Research Assistant

Mary Olson, DNP, ANP
Clinical Trials Program Director

Christine Cervini, NP
Nurse Practitioner

Jillian Jacob, RN
Registered Nurse

Marlene Feron-Rigodon, RN
Registered Nurse

Adomah Sakibia Opong, RN, NP

Samantha Benjamin
Laboratory Technician

Gertrudis Soto
Medical Technician/Phlebotomist

Ray Peterson
Data Coordinator

Cailey Simmons
Data Coordinator

Nora Stillman
Data Coordinator

William Duffy
Data Coordinator

Samantha Kyle
Medical Secretary

Alicia N. Lewis
Director of Clinical Trails

Stephanie Speaker
Regulatory Manager

Lauren Tyrell
Clinical Research Manger

Lalta Dhanantwari
Assistant Regulatory Coordinator

Lalta Dhanantwari
Assistant Regulatory Coordinator

Cecilia Mero
Regulatory Coordinator

Christina Persaud
Regulatory Coordinator

Miranda Payan
Regulatory Assistant

More of our clinical team