J. Michael Collaco, M.D., Ph.D., M.S.

Joseph Michael Collaco, M.D., Ph.D., M.S.

Headshot of J. Michael Collaco
  • Professor of Pediatrics


Aerodigestive Disorders, Asthma, Bronchopulmonary Dysplasia, Cystic Fibrosis, Hereditary Hemorrhagic Telangiectasia (HHT), Pediatric Pulmonary Medicine, Pediatric Pulmonology, Pulmonary Medicine ...read more

Research Interests

Cystic Fibrosis Epidemiology; Bronchopulmonary Dysplasia Epidemiology; Chronic Lung Disease of Prematurity; Environmental modifiers of chronic lung disease of prematurity; Gene Environment Interactions in Cystic Fibrosis ...read more

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Johns Hopkins Pediatrics

Appointment Phone: 410-955-2035
200 N. Wolfe Street
Rubenstein Child Health Building
Baltimore, MD 21287 map
Phone: 410-955-2035


Dr. J. Michael Collaco is a professor of pediatrics at the Johns Hopkins University School of Medicine. His clinical specialty is pediatric pulmonary medicine, including chronic lung disease of premature infants, lung disease in medically complex patients including ventilators and tracheostomies, hereditary hemorrhagic telangiectasia, aerodigestive disorders, and general pediatric pulmonary conditions. He sees patients inpatient and outpatient at Johns Hopkins (East Baltimore campus), inpatient and outpatient at Mount Washington Pediatric Hospital, and inpatient at Kennedy Krieger Institute.

Dr. Collaco attended Yale University for undergraduate studies and received his M.D. and M.S. (Anatomy) from Case Western University School of Medicine in Cleveland, Ohio. He completed his pediatric residency, pediatric pulmonary fellowship, M.B.A., M.P.H., and Ph.D. (Clinical Epidemiology) at the Johns Hopkins University. Dr. Collaco joined the Johns Hopkins faculty in 2008.

His primary research interest is in the epidemiology of pediatric respiratory diseases, with a focus on environmental risk factors for cystic fibrosis and bronchopulmonary dysplasia as well as a special interest in the effects of secondhand smoke and electronic cigarette emissions. He has published over 140 peer-reviewed articles.

Dr. Collaco is a member of the Cystic Fibrosis Research Development Center and the Hereditary Hemorrhagic Telangiectasia Center of Excellence. He has been recognized by Johns Hopkins with the John C. Hume Scholarship, the Francis F. Schwentker Research Award, and the Robert Dyar Award. Dr. Collaco is a fellow of the American Academy of Pediatrics.

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  • MD; Case Western Reserve University School of Medicine (2000)


  • Pediatrics; Johns Hopkins University School of Medicine (2003)


  • Pediatrics; Johns Hopkins University School of Medicine (2008)

Board Certifications

  • American Board of Pediatrics (Pediatric Pulmonology) (2008)
  • American Board of Pediatrics (Pediatrics) (2003)

Research & Publications

Research Summary

Dr. Colaco studies environmental factors that affect clinical outcomes in cystic fibrosis and other pediatric respiratory disorders. He is the recipient of multiple external grants to pursue this research and has published over 140 peer-reviewed articles.

Selected Publications

View all on PubMed

Green DM, Collaco JM, McDougal KE, Naughton KM, Blackman SM, Cutting GR. “Heritability of respiratory infection with Pseudomonas aeruginosa in cystic fibrosis.”J Pediatr. 2012 Aug;161(2):290-5.e1. doi: 10.1016/j.jpeds.2012.01.042. Epub 2012 Feb 23.

Collaco JM, Kole AJ, Riekert KA, Eakin MN, Okelo SO, McGrath-Morrow SA. “Respiratory medication adherence in chronic lung disease of prematurity.” Pediatr Pulmonol. 2012 Mar;47(3):283-91. doi: 10.1002/ppul.21547. Epub 2011 Sep 8.

McGrath-Morrow SA, Ryan T, McGinley BM, Okelo SO, Sterni LM, Collaco JM.“Polysomnography in preterm infants and children with chronic lung disease.” Pediatr Pulmonol. 2012 Feb;47(2):172-9. doi: 10.1002/ppul.21522. Epub 2011 Aug 3.

McGrath-Morrow S, Malhotra D, Lauer T, Collaco JM, Mitzner W, Neptune E, Wise R, Biswal S. “Exposure to neonatal cigarette smoke causes durable lung changes but does not potentiate cigarette smoke-induced chronic obstructive pulmonary disease in adult mice.” Exp Lung Res. 2011 Aug;37(6):354-63. doi: 10.3109/01902148.2011.577268. Epub 2011 Jun 7.

Wright FA, Strug LJ, Doshi VK, Commander CW, Blackman SM, Sun L, Berthiaume Y, Cutler D, Cojocaru A, Collaco JM, Corey M, Dorfman R, Goddard K, Green D, Kent JW Jr, Lange EM, Lee S, Li W, Luo J, Mayhew GM, Naughton KM, Pace RG, Paré P, Rommens JM, Sandford A, Stonebraker JR, Sun W, Taylor C, Vanscoy LL, Zou F, Blangero J, Zielenski J, O'Neal WK, Drumm ML, Durie PR, Knowles MR, Cutting GR. “Genome-wide association and linkage identify modifier loci of lung disease severity in cystic fibrosis at 11p13 and 20q13.2.” Nat Genet. 2011 Jun;43(6):539-46. doi: 10.1038/ng.838. Epub 2011 May 22.

Blackman SM, Hsu S, Vanscoy LL, Collaco JM, Ritter SE, Naughton KM, Cutting GR. Genetic modifiers play a substantial role in diabetes complicating cystic fibrosis. J Clin Endocrinol Metab. 2009 Apr;94(4):1302-9.

Collaco JM, Vanscoy LL, Bremer LA, McDougal, KE, Blackman SM, Bowers A, Naughton K, Jennings J, Ellen J, Cutting GR. Interactions between secondhand smoke and genes that affect cystic fibrosis lung disease. JAMA. 2008 Jan 30;299(4):417-24.

Collaco JM, Cutting GR. Update on Gene Modifiers in Cystic Fibrosis. Curr Opin Pulm Med. 2008; 14(6):559-66.

Collaco JM, Gower WA, Mogayzel PJ. Pulmonary dysfunction in pediatric hematopoietic stem cell transplant patients: Overview, diagnostic complications, and infectious complications. Pediatr Blood Cancer. 2007; 49(2):117-26.

Gower WA, Collaco JM, Mogayzel PJ. Pulmonary dysfunction in pediatric hematopoietic stem cell transplant patients: Non-infectious and long-term complications. Pediatr Blood Cancer. 2007; 49(3):225-33.

Vanscoy LL, Blackman SM, Collaco JM, Bowers A, Lai T, Naughton K, Algire, M, McWilliams R, Beck S, Hoover-Fong J, Hamosh A, Cutler D, Cutting GR. Heritability of lung disease severity in cystic fibrosis. AJRCCM. 2007; 175(10):1036-43.

Collaco JM, Simpson SW. Human forearm muscle architecture. Am J Phys Anthropol. 2000; Supplement 30:127-8.

Gower WA, Collaco JM, Ellis C, Halbower AC, Mogayzel PJ. What is Your Diagnosis? A previously healthy adolescent with evolving infiltrates and progressive respiratory distress. Thorax: 2009 Apr;64(4):290, 364.

Academic Affiliations & Courses

Graduate Program Affiliation

Associate Fellowship Director (Pediatric Pulmonology)

Activities & Honors


  • National Science Scholar, 1992 - 1996
  • Yale Presidents Public Service Fellowship, 1994
  • Herbert S. Steuer Memorial Award, CWRU Anatomy Department, 2000
  • Francis F. Schwentker Research Award, JHU Department of Pediatrics, 2008
  • John C. Hume Scholarship, JHU School of Public Health, 2009
  • Harry Schwachman Clinical Investigator, Cystic Fibrosis Foundation, 2009 - 2012
  • Robert Dyar Award, JHU School of Public Health, 2012
  • Gilead Clinical Research Scholar, Gilead Sciences, Inc., 2013 - 2015
  • Arricale Visiting Lecturer, JHU Division of Pediatric Pulmonology, 2017 - 2017
  • Richmond Center Investigator, American Academy of Pediatrics, 2011 - 2021


  • American Academy of Pediatrics

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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