Pulmonary, Critical Care, and Sleep Medicine

The Division of Pulmonary, Critical Care, and Sleep Medicine first opened its doors in the 1980s with one faculty member; it has grown to become a faculty of 24 dedicated physicians of pulmonary medicine, a critical care unit, and a center including sleep medicine. Our clinician researchers, eight professors, four associate professors, and 12 assistant professors, are all engaged in scholarly activity including teaching, research, and mentorship of our fellows and residents.  We are proud to have several of our faculty conducting federally funded clinical research projects on asthma, COPD, and basic research at the Feinstein Institute for Medical Research. 

Contact Details:

  • Pulmonary, Critical Care and Sleep Medicine
    410 Lakeville Road, Suite 107
    New Hyde Park NY 11040
    (516) 465-5400

Pulmonary, Critical Care, and Sleep Medicine

The Division of Pulmonary, Critical Care, and Sleep Medicine offers comprehensive and individualized care for adult patients suffering from common and uncommon respiratory disorders and sleep disorders. The North Shore-LIJ Health System provides expert treatment and management for all of them, from asthma and allergies to emphysema and cystic fibrosis. Our comprehensive Sleep Disorders Center provides diagnostic and treatment services for sleep apnea, insomnia, and other conditions.

Clinical Practice

Physicians provide an array of services at the Adult Cystic Fibrosis Center, Beth Thalheim Asthma Center (ALA Network), Rehabilitation Center, Advanced Lung Disease and Pulmonary Hypertension Center, Sleep Disorders Center, and the outpatient pulmonary practice. Our faculty are leaders in applications for critical care ultrasonography and in demonstrating that people other than radiologists and cardiologists can be proficient. The division has spearheaded the development of national ultrasonography courses and organized training for most of New York City’s first-year pulmonary and critical care fellows – helping raise the level of proficiency in ICUs across the city. At North Shore-LIJ, critical care ultrasonography includes transesophageal echocardiography and training for house staff as well as fellows.

Specialized Services

  • Advanced Lung Disease
  • Lung Cancer
  • Interstitial Disease and Pulmonary Hypertension
  • COPD and Asthma: Beth Thalheim Asthma Center
  • Interventional Bronchoscopy
  • Pulmonary Physiology and Pulmonary Rehabilitation
  • Critical Care Medicine
  • Sleep Medicine
  • Adult Cystic Fibrosis and Bronchiectasis Center

For further information on the health system’s sleep medicine practices please go to the NS-LIJ website.

For further information on the health system's pulmonary practices please go to the NS-LIJ website.

Our Faculty

Generic placeholder imageHarly Greenberg, MD, Chief, Division of Pulmonary, Critical Care, and Sleep Medicine

Dr. Greenberg is Chief of the Division and Medical Director of the Northwell Health Sleep Disorders Center.   His clinical expertise includes disorders affecting breathing during sleep, narcolepsy, parasomnias, insomnia, circadian rhythm disorders and restless legs syndrome among many other sleep disorders.  With over 60 journal articles and book chapters, Dr. Greenberg is a renowned expert in sleep medicine.  He has helped advance sleep medicine as an investigator in multiple clinical research trials.  His research has made important contributions to our understanding of the cardiovascular consequences of obstructive sleep apnea.  In addition, Dr. Greenberg was a co-investigator of a recent major international clinical trial that established the efficacy of continuous positive airway pressure therapy for patients with milder forms of obstructive sleep apnea.  His work has also contributed to the development of new therapies for insomnia.  As Program Director for the Hofstra-Northwell Sleep Medicine Fellowship, Dr. Greenberg plays an important role in educating the next generation of sleep medicine physicians. 


Generic placeholder imageShu Fang Liu, PhD

Dr. Shu Fang Liu graduated from Shanghai Second Medical University in China and received his Ph.D. in Molecular Pharmacology from Imperial College, University of London, England.  He is currently an investigator at the Feinstein Institute for Medical Research and Professor of Medicine at Hofstra Northwell School of Medicine.  Dr. Liu’s laboratory focuses on molecular mechanisms of septic shock, and septic multiple organ injury (MOI), conditions that claim thousands of lives each ear.  His laboratory is also investigating the molecular mechanisms through which obstructive sleep apnea (OSA) promotes the development of atherosclerosis and other cardiovascular diseases.


Generic placeholder imageEric P. Gottesman, MD, FCCP

Dr. Gottesman rejoined the Division in October 2012, as Director of the Medical Intensive Care Unit at North Shore University Hospital; he returns to our faculty after 5 years in private practice in Washington State.  Dr. Gottesman trained in internal medicine and critical care medicine at Beth Israel Medical Center, New York, and completed a fellowship in pulmonary medicine at Brown University in providence, Rhode Island.  His clinical and research interests are in Quality Improvement for the critically ill patient.


Generic placeholder imageNegin Hajizadeh, MD

Dr. Hajizadeh is Assistant Professor of Medicine at Hofstra Northwell School of Medicine and joined Northwell in 2014. She works clinically as a medical intensivist at LIJ Medical Center and North Shore University Hospital. Her research interest is in comparative effectiveness research and decision-making science with a focus on translating this science into instruments that can be used by patients and their clinicians for an informed end of life decision making – specifically critical care decision making in patients with advanced chronic diseases. Her goal is to inform end-of-life care planning with personalized, prognostic data, and with tools to effectively and compassionately communicate this data to patients.

Thus far, she has developed a mathematical model which estimates outcomes for patients with severe COPD who choose to receive mechanical ventilation versus not, in the event of critical illness. She has incorporated this model into a decision aid (InformedTogether) for use at the point of outpatient clinical care, with the ability for patients to then continue viewing the decision aid at home with their family members. This work is funded by the NIH-NIA (National Institute of Aging) to be refined using patient and clinician feedback, and to be tested in a pilot clinical study for point of care shared decision-making about advance care plans. She also is the co-PI on a grant from the Cystic Fibrosis Foundation to develop a mathematical model that estimates survival for patients with Cystic Fibrosis and to communicate this within a similar decision aid.


Generic placeholder imageJustina Hessel, MD

Dr. Justina Hessel is an attending physician in the medical intensive care unit at North Shore University Hospital and an assistant professor at Hofstra Northwell School of Medicine.  Dr. Hessel is a native of Long Island.  She graduated from New York University medical school in Manhattan and completed an internal medicine residency at Montefiore Medical Center in the Bronx.  She then received her pulmonary and critical care training at New York Presbyterian Weill Cornell Medical Center.  Dr. Hessel has performed research and published in the area of gene expression within the airway epithelium. 


Generic placeholder imageSeth Koenig, MD

Dr. Koenig is an Associate Professor of Medicine at Hofstra Northwell School of Medicine and the Medical Director of the Long Island Jewish Medical Center Medical Intensive Care Unit (MICU).  His clinical responsibilities include attending both in the MICU and on the inpatient consultative service at LIJ, and he participates in pulmonary faculty practice.  He performs interventional pulmonary procedures such as endobronchial ultrasound, peripheral endobronchial ultrasound, and placement of indwelling pleural catheters.  His research interests are in critical care ultrasound and endotracheal intubation.  He is the Section Editor of the Ultrasound Corner in the journal “Chest.”  Dr. Koenig completed medical school at New York Medical College and did both his residency and fellowship at Long Island Jewish Medical Center.


Viera Lakticova, MD

Dr. Lakticova is an Assistant Professor and Director of Bronchoscopy and Interventional Pulmonology.  She completed her Internal Medicine residency at Beth Israel Medical Center in New York and a fellowship in Pulmonary, Critical Care and Sleep Medicine at the Northwell Health training program.  She received training in multiple advanced pulmonary interventions including navigational bronchoscopy, endobronchial ultrasound, and medical pleuroscopy.  Her interests include lung cancer diagnosis, management, and palliation.


Generic placeholder imageGita Lisker, MD

Dr. Lisker is the Medical Director of the Respiratory Care Unit at North Shore University Hospital and Long Island Jewish Medical Center as well as an Assistant Professor of Medicine at Hofstra Northwell School of Medicine.  Additionally, she is the Director of the Swallowing Disorders program at North Shore University Hospital, which includes Fiberoptic Evaluation of Swallow and Sensory Testing (FEEST).  Her areas of interest in clinical research include dysphagia, particularly in critically ill patients, as well as quality improvement.  Currently, she attends on the pulmonary consultation service, the Respiratory Care Unit at North Shore and LIJ and the Medical Intensive Care Unit at North Shore as well as the ambulatory patient practice.


Paul Mayo, MD

Dr. Mayo is an Academic Director of the Critical Care units at LIJ and North Shore University Hospital.  He is also a Professor of Medicine at Hofstra Northwell School of Medicine.  He has mentored countless physicians and is recognized internationally for his expertise in critical care ultrasound and echocardiography.

Dr. Mayo supervises the training of fellows in critical care ultrasonography and offers interested fellows full training in advanced critical care echocardiography including TEE. As team leader of the ACCP ultrasound working group, Dr. Mayo authored the ACCP/SRLF Competence Statement on critical care ultrasonography and is the editor of a major textbook on the subject.  He has been course leader at numerous multiday courses throughout the United States and is frequently invited faculty at the international level.  Fellows from the Northwell program regularly serve as faculty at national ACCP courses, in recognition of their high skill level.  He received the “best teacher of the year” award in 2012 for his work with the medical housestaff at Northwell Health.


Generic placeholder imageSienna Moran, MD

Dr. Moran joined the Division of Pulmonary, Critical Care and Sleep medicine in July 2012, after completing her fellowship at Columbia University Medical Center, New York Presbyterian Hospital.  She is an Assistant Professor of Medicine at Hofstra Northwell School of Medicine.  She is the Director of the Critical Care Unit at Plainview Hospital.  Her research interests include quality improvement in MICU care and pulmonary physiology in neuromuscular disease.


Generic placeholder imageMangala Narasimhan, DO, FCCP, ABSM

Dr. Narasimhan is the Regional Director of the Medical Critical Care Unit of Northwell Health and an Associate Professor at the Hofstra-Northwell School of Medicine. She is board certified in Internal Medicine, Pulmonary Medicine, Critical Care Medicine and Sleep Medicine. She is a Co-Director for the American College of Chest Physicians course in Critical Care Ultrasonography and on the ACCP executive committee to design a national board certification for critical care ultrasonography. She has been faculty at the ACCP Ultrasound course at a national level for 7 years. She did her residency, fellowship and was a Chief resident at Beth Israel Medical Center in NY and has been at Northwell Health for over 5 years.  Research interests include critical care ultrasound projects as well as sleep apnea.


Darshan Patel, MD

Dr. Darshan Patel joined the division of Pulmonary, Critical Care and Sleep Medicine in October 2012.  He is Assistant Professor of Medicine at Hofstra Northwell School of Medicine. He is board certified in internal medicine, critical care medicine, neuro-critical care and is certified in critical care echocardiography.  He is now faculty in the MICU at Plainview Hospital.  His research interests include improving quality and transition of care, use of ultrasonography and echocardiography, and impact of delirium in the ICU.


Saul Rothenberg, PhD

Dr. Saul Rothenberg is a licensed psychologist and a diplomate of the American Board of Sleep Medicine since 1988. He was one of the first sleep specialists in the United States certified in Behavioral Sleep Medicine in 2003. He specializes in the behavioral treatment of sleep disorders in children, adolescents, and adults. His interests include insomnia, sleep fragmentation, sleep deprivation, and circadian rhythm sleep disorders. He has been an integral part of the Northwell Health Sleep Disorders Center since 1996.


Anthony Sica, PhD

Anthony L. Sica, Ph.D. is a diplomate and fellow of the American Academy of Sleep Medicine.  He has held academic appointments at the Albert Einstein College of Medicine, Clinical Professor of Medicine, and at SUNY Downstate Medical Center, Department of Physiology and Pharmacology, Visiting Professor.  He has been the recipient of the Parker B. Francis Fellowship in Pulmonary Medicine and has been principal investigator on research projects awarded by the National Institutes of Health.  His publications have focused on the neural regulation of ventilation and cardiovascular function especially during development and during sleep.  He is currently a faculty member of the Sleep Disorders Center and the Sleep Medicine Fellowship program.


Generic placeholder imageEffie Singas, MD, FACP, FCCP

Dr. Singas is Program Director for the Hofstra Northwell School of Medicine Pulmonary and Critical Care Medicine Fellowship and has served in that role since joining North Shore University Hospital in 2005. She is an Associate Professor of Medicine at Hofstra Northwell School of Medicine.  Dr. Singas received her medical degree from New York University School of Medicine and completed her training in internal medicine and pulmonary/critical care medicine at Mount Sinai Medical Center, NY. In addition to key clinical and teaching roles at North Shore University Hospital, Dr. Singas devotes her time and energy toward training fellows and house staff in pulmonary and critical care medicine.  To that end, she has participated in numerous faculty development training sessions at regional and national venues; she is also an active participant in the Association of Pulmonary and Critical Care Medicine Program Directors.  Her accomplishments are reflected in Residency Review Committee evaluations, which have consistently been outstanding.


Generic placeholder imageHarry Steinberg, MD

Dr. Steinberg is currently the Edward Meilman Professor of Medicine at Hofstra Northwell School of Medicine. Dr. Steinberg founded this division at Long Island Jewish Medical Center in 1974 and since that time has served in various roles in the Department of Medicine including Chief of the Division, Program Director, Vice Chair  and Acting Chair of the Department of Medicine. His research interests have ranged from cellular biology to education, to quality improvement and to clinical medicine. Currently, he attends on the pulmonary consultation services at both LIJ and North Shore and in the ambulatory clinic.


Generic placeholder imageArunabh Talwar, MD

Dr. Arunabh Talwar is the Director of the Advanced Lung Disease Program, which includes patients with pulmonary hypertension and interstitial lung disease and is one of the largest such clinical programs on Long Island. He also is the Director of the pulmonary function laboratory and pulmonary rehabilitation program. He also serves as medical advisor to the tobacco cessation program, one of the most successful programs for smoking cessation in the country. His research interests include clinical and translational research related to advanced lung disease.  He is investigating the use of pulmonary exercise testing to predict outcomes in patients with pulmonary hypertension and interstitial lung disease.  In collaboration with the Feinstein Institute, he is identifying biomarkers for the early diagnosis of pulmonary hypertension and advanced lung disease.  He has been a member of the division for 13 years and is a Professor of Medicine at Hofstra Northwell School of Medicine. 


Generic placeholder imageAdey Tsegaye, MD, FASM, FCCP

Dr. Tsegaye is a faculty pulmonary critical care attending practicing mainly out of North Shore University Hospital although she attends at both campuses.   She is Assistant Professor of Medicine at Hofstra Northwell School of Medicine. She graduated from the University of Connecticut Medical School and completed residency and fellowship training at Beth Israel Medical Center in Manhattan.  She worked as an ICU attending at Saint Barnabas Hospital in the Bronx for 4 years before joining Northwell Health 3 years ago.  Her clinical interests include ultrasound and airway management.


Generic placeholder imageJanice Wang, MD

Janice Wang serves as Assistant Professor at Hofstra Northwell School of Medicine. Her clinical time is dedicated to in-patient pulmonary and critical care medicine as well as to the Department’s out-patient specialty practice encompassing pulmonary and sleep medicine and cystic fibrosis care.  Her research interests include the medical rapid response system utilized when hospitalized patients are in need of critical care; and the impact of intensive care unit hospitalization on sleep and circadian rhythm. Dr. Wang is also working closely with the Adult and Pediatric Cystic Fibrosis Centers of Northwell Health as part of the OneCF Learning and Leadership Collaborative led by the Dartmouth Institute Microsystem Academy.  This quality improvement project is aimed to improve the transfer process of pediatric cystic fibrosis patients transitioning to the Northwell Adult CF Center.  As a pastime, Dr. Wang enjoys Chinese landscape painting.