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Dr. Worgall and infant

Our Pediatric Pulmonology practice provides diagnosis and comprehensive care for the full range of lung and respiratory disorders.  Your child will benefit from our leading edge technologies such as flexible fiberoptic bronchoscopy and pulmonary function testing (PFT), and collaboration with behavioral sleep specialists. 

Our Weill Cornell Pediatric Sleep and Breathing Disorders Center is dedicated to infants, children and adolescents.

Quick link to Office Information and Patient Forms

Services & Programs

Our Pediatric Pulmonology specialists treat common and complex respiratory and lung disorders including:

  • Asthma
  • Bronchopulmonary dysplasia
  • Chronic aspiration
  • Chronic cough
  • Chronic lung disease
  • Difficult to treat asthma
  • Noisy breathing
  • Recurrent persistent wheeze
  • Recurrent pneumonias
  • Respiratory disease
  • Sleep disorders
  • Tracheomalacia

Pediatric Sleep and Breathing Disorders Center

Sleep disorders and breathing disorders during sleep are among the most common issues parents deal with in childhood. These disorders may result in learning and behavioral disabilities, as well as long term pulmonary, endocrine and heart disease.   At the Pediatric Sleep and Breathing Disorders Center, we perform the full range of studies required to diagnose sleep disorders, including daytime and overnight studies.  

Pediatric Aerodigestive Program

Our Pediatric Pulmonology team is part of Weill Cornell Medicine’s Pediatric Aerodigestive Program -- a multidisciplinary program bringing Pediatric Pulmonology, Pediatric Gastroenterology and Pediatric Otolaryngology (ENT) specialists together to provide coordinated, single-location care for children with conditions related to the aerodigestive tract. 

Diagnosis & Treatment

Pulmonary Function Test

To diagnose and manage a child’s respiratory disease, doctors often rely on respiratory function testing: painless and noninvasive tests that assess various aspects of lung function including the size of the lungs; the speed and force with which air leaves the lungs; and how well oxygen crosses from the lungs into the blood vessels.  Doctors can also measure changes in a child’s lung function over time or during ongoing therapy, or his or her immediate response to medications for asthma.

Our pediatric pulmonologists use the latest technologies and equipment to diagnosis and treat lung diseases and disorders in children and adolescents, including:

  • Spirometry
  • Lung volumes
  • Exhaled nitric oxide
  • Diffusion testing
  • Methacholine challenge
  • Cardiopulmonary exercise testing


Our staff is experienced in examining the smaller airways of infants and children of any age using flexible fiberoptic bronchoscopy.  Our approach has a high level of diagnostic accuracy while allowing your child to breathe spontaneously during the test.

Our flexible bronchoscopy offers:

  • Upper and lower airway anatomy assessment for presence of increased secretions and infections
  • Bronchoalveolar lavage (BAL)
  • Brush biopsies


Our Team


Dr. Kalliope Tsirilakis

Kalliope Tsirilakis, M.D.

Director, Pediatric Pulmonology - NYP Queens
Director, Pediatric Asthma Center, NYP Queens
Assistant Attending Pediatrician
Assistant Professor of Clinical Pediatrics
Stefan Worgall

Stefan Worgall, M.D., Ph.D.

Chief, Pediatric Pulmonology, Allergy & Immunology
Distinguished Professor of Pediatric Pulmonology
Professor of Pediatrics and Genetic Medicine
Attending Pediatrician
Hilary Carlson

Hilary Carlson, N.P.

Pediatric Nurse Practitioner
Asthma Educator
Dr. Elizabeth Fiorino

Elizabeth Fiorino, M.D.

Medical Director, Pulmonary Function Laboratory;
Director, Pulmonary Fellowship;
Assistant Professor of Clinical Pediatrics;
Assistant Attending Pediatrician
Dr. Andrea Heras

Andrea Heras, M.D.

Assistant Professor of Clinical Pediatrics
Assistant Attending Pediatrician
Gerald Loughlin

Gerald Loughlin, M.D., M.S.

Nancy C. Paduano Professor & Chairman, Department of Pediatrics, Weill Cornell Medicine
Pediatrician-in-Chief, NewYork-Presbyterian/Weill Cornell Medical Center Phyllis and David Komansky Children’s Hospital
Dr. Katharina Graw-Panzer

Katharina Panzer, M.D.

Assistant Clinical Pediatrics Professor
Pediatric Aerodigestive Program Pulmonology Director
Haviva Veler

Haviva Veler, M.D.

Director, Weill Cornell Medicine Pediatric Sleep & Breathing Disorder Center
Associate Professor of Clinical Pediatrics
Associate Attending Pediatrician

What Sets us Apart

  • We are affiliated with Komansky Children’s Hospital at NewYork-Presbyterian, the #1 ranked children’s hospital in New York City on the 2017-2018 US News & World Report Best Children’s Hospitals survey.
  • Our Pediatric Sleep Lab is dedicated exclusively to children and adolescents of all ages, including infants.
Pediatric Pulmonology
Helmsley Medical Tower
505 E. 70th St., Third Floor
New York, NY 10021
(646) 962-3410
(646) 962-0246

Pediatrics Weill Cornell Medicine Appointments & Referrals: (646) 962-KIDS (646) 962-5437 Chairman's Office: Weill Cornell Medicine 525 E 68th St.
Box 225
New York, NY 10065 (646) 962-5437