Daniel Carpenter Belz, M.D., M.P.H.

Headshot of Daniel Carpenter Belz
  • Co-Director of the Nontuberculosis Mycobacteria and Bronchiectasis Center
  • Assistant Professor of Medicine

Languages: English, Spanish


Asthma, Bronchiectasis, Chronic Obstructive Pulmonary Disease (COPD), Mycobacterial lung disease, Pulmonary and Critical Care Medicine ...read more


Dr. Belz is a specialist in Pulmonary and Critical Care Medicine. He is Director of Bronchiectasis at the Johns Hopkins Center for Nontuberculous Mycobacteria and Bronchiectasis.  He is an expert in the care of patients with bronchiectasis, asthma, COPD, and NTM pulmonary disease, and in the care of critically ill patients in the ICU. His research is dedicated to decreasing health disparities in the treatment of obstructive lung diseases such as COPD and bronchiectasis. He participates in clinical trials researching new treatments for bronchiectasis and NTM lung disease. He provides teaching to medical students, residents, and fellows at Johns Hopkins.

...read more


  • Co-Director of the Nontuberculosis Mycobacteria and Bronchiectasis Center
  • Assistant Professor of Medicine

Departments / Divisions

Centers & Institutes



  • MD; University of Kansas School of Medicine (2014)


  • Internal Medicine; Boston Medical Center (2017)


  • Pulmonary Medicine; Johns Hopkins University School of Medicine (2022)

Board Certifications

  • American Board of Internal Medicine (Internal Medicine) (2017)

Research & Publications

Research Summary

Dr. Belz' research focuses on addressing health disparities in obstructive lung disease. His specific interests include studying access to lung-healthy diets among individuals with COPD as well as examining exposures to harmful chemicals which are more common in poor neighborhoods. He is the principle investigator of a cohort study of patients with bronchiectasis and NTM lung disease that seeks to understand risk factors for these diseases. He also serves as the site PI of several clinical trials investigating new therapies for non-cystic fibrosis bronchiectasis.

Clinical Trial Keywords

Bronchiectasis; NTM

Selected Publications

Belz DC, Woo H, Putcha N, Paulin LM, Koehler K, Fawzy A, Alexis NE, Barr RG, Comellas AP, Cooper CB, Couper D, Dransfield M, Gassett AJ, Han M, Hoffman EA, Kanner RE, Krishnan JA, Martinez FJ, Paine R 3rd, Peng RD, Peters S, Pirozzi CS, Woodruff PG, Kaufman JD, Hansel NN; SPIROMICS Investigators. Ambient ozone effects on respiratory outcomes among smokers modified by neighborhood poverty: An analysis of SPIROMICS AIR. Sci Total Environ. 2022 Mar 19;829:154694. doi: 10.1016/j.scitotenv.2022.154694. Epub ahead of print. PMID: 35318050

Woo H, Brigham EP, Allbright K, Ejike C, Galiatsatos P, Jones MR, Oates GR, Krishnan JA, Cooper CB, Kanner RE, Bowler RP, Hoffman EA, Comellas AP, Criner G, Barr RG, Martinez FJ, Han M, Ortega VE, Parekh TM, Christenson S, Belz D, Raju S, Gassett A, Paulin LM, Putcha N, Kaufman JD, Hansel NN. Racial Segregation and Respiratory Outcomes among Urban Black Residents with and at Risk of Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med. 2021 Sep 1;204(5):536-545. doi: 10.1164/rccm.202009-3721OC. PMID: 33971109; PMCID: PMC8491265.

Ejike CO, Woo H, Galiatsatos P, Paulin LM, Krishnan JA, Cooper CB, Couper DJ, Kanner RE, Bowler RP, Hoffman EA, Comellas AP, Criner GJ, Barr RG, Martinez FJ, Han MK, Martinez CH, Ortega VE, Parekh TM, Christenson SA, Thakur N, Baugh A, Belz DC, Raju S, Gassett AJ, Kaufman JD, Putcha N, Hansel NN. Contribution of Individual and Neighborhood Factors to Racial Disparities in Respiratory Outcomes. Am J Respir Crit Care Med. 2021 Apr 15;203(8):987-997. doi: 10.1164/rccm.202002-0253OC. PMID: 33007162; PMCID: PMC8048743.

Activities & Honors


  • American Thoracic Society

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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