Alexis Agnew, MSc

Clinical Research Program Manager of the Chest Disease Center at BIDMC.  She received her Masters in Science in Biomedical Sciences and Clinical Research Management from Regis College.  She oversees the execution of several multicenter industry sponsored clinical trials as well as multiple investigator-initiated prospective and retrospective studies.  She oversees the conduct of clinical research using Good Clinical Practice and is responsible for the management of patient clinical information as it pertains to participation in clinical trials.

Theresa Bishop, RN, BSN

Theresa is a Clinical Research Nurse in the Chest Center at BIDMC.  She has wide-ranging clinical experience in cardiovascular nursing and research. She has worked at the BIDMC and MGH coordinating and managing investigator initiated and industry funded clinical research trials. Along with her extensive clinical and research experience, Theresa is passionate about her patients and strives to provide them with the best patient experience possible.

Megan Carreiro, MS

Clinical Research Coordinator. Megan received her Bachelor of Arts in Psychology at Framingham State University and her Masters of Science in Neuroscience & Education at Columbia University. She works on projects that evaluate the quality of life in patients with tracheobronchomalacia. In the future, Megan hopes to receive a PhD in Clinical Psychology.

Melibea Sierra, MD

Graduated from Universidad Icesi, in Cali Colombia. Melibea is a research fellow at Beth Israel Deaconess Medical Center, currently under mentorship of Dr. Majid. Her projects include bronchoscopic treatment of airway diseases and 3D printing for procedural education.

Mathieu Marcoux, MD

Dr. Marcoux graduated from Laval University Medical School in Quebec City, Canada. He completed his residency training in Internal Medicine at the Centre Hospitalier Universitaire de Quebec and in Respirology at the Quebec Heart and Lung Institute. He is currently pursuing a Master’s Degree in Clinical Research at Harvard Medical School. His research interests include novel endoscopic approaches for the diagnosis and treatment of lung cancer.

Rani Singh, PhD

Dr. Singh earned her Ph.D. degree in Ethnomedicine from the University of Mumbai, India. She obtained her early postdoctoral training in Immunology and Infectious Diseases from the University of Manitoba, Canada, and The Forsyth Institute (Harvard School of Dental Medicine), Cambridge, USA. She has held a Career in Immunology Postdoctoral Fellowship from the American Association of Immunologists.
Dr. Singh's research is focused on understanding the immunopathogenesis of Tracheobronchomalacia (TBM), a severe condition leading to highly collapsible airways in a subset of patients. She is particularly interested in dissecting the role of glycan-binding proteins in immune regulation that may lead to airway remodeling and TBM. Through identification of biomarker(s) and immune alterations in the airways, her goal is to develop novel tools for minimally-invasive diagnosis and further aid in the development of innovative therapies for TBM. ​​

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Juan Pablo Uribe Becerra, MD

​Juan Pablo  MD, International Medical Graduate from Colombia, graduated from Icesi University in Cali, Colombia on 2016, worked 1 year as Research Fellow in orthopedic surgery at Fundación Valle de Lili in Colombia prior to joining the IP group at BIDMC. Some of his projects include bronchoscopic techniques  and 3D printing designs for airway diseases.

Daniel Ospina, MD

Daniel obtained his Medical Degree from Icesi University in Cali, Colombia. He currently works as a research fellow at Beth Israel Deaconess Medical Center. His projects include novel endoscopic treatment techniques for airway obstruction and investigation in different fields regarding Tracheobronchomalacia (TBM). He is interested in pursuing a clinical residency in General Surgery after gaining additional experience in the research field.

Juan Carlos  Ascanio-Cortez, MD


Research fellow in Thoracic Surgery. Juan Graduated from Universidad de Carabobo, Aragua, Venezuela. Some of his projects include investigating the etiology of tracheobronchomalacia and 3D printing of anatomical models for evaluation of surgical techniques. He is looking forward to apply for general surgery residency and aspires to become a thoracic surgeon.​

Carlos Sisniega Baca, MD

IMG from Mexico City. Graduated from Universidad Panamericana. Previously works as a research fellow at the Instituto Nacional de Cardiología Ignacio Chávez in the Cardiopulmonary Department as part of the Ministry of Health Research Social Service Program. His research interests include Cardiopulmonary interactions, Pulmonary Hypertension, and Right Heart Failure. He hopes to pursue a clinical residency in pediatrics in the future. 

Lloyd Liang

​Senior Clinical Research Coordinator. Lloyd received his Bachelor of Arts in Chemistry with a concentration in Biochemistry with a minor in Mathematics at Colby College. He works on research studies involving interstitial lung disease, pulmonary hypertension, interventional pulmonary medicine, asthma, and COPD. In the future, Lloyd hopes to attend medical school. 

Alexandria H. Lucas

​Clinical Research Coordinator II. Alex received her Bachelor of Arts in Biology with a concentration in Neuroscience with minors in Mathematics and Sociology at Colby College. She works on research studies involving interstitial lung disease, pulmonary hypertension, interventional pulmonary medicine, asthma, and COPD. In the future, Alex hopes to attend a combined physician assistant and public health program.