Clinical Focus

  • Pulmonary Medicine
  • Cystic Fibrosis
  • Bronchopulmonary Dysplasia
  • Interstitial Lung Disease
  • Pediatric Pulmonary

Academic Appointments

Honors & Awards

  • Community Access to Child Health Grant, American Academy of Pediatrics (December 2007-June 2009)
  • 2nd year Clinical Fellowship, Cystic Fibrosis Foundation (July 2010-June 2011)
  • Crandall Endowed Fellowship, Stanford University School of Medicine (July 2010-June 2011)
  • Ernest and Amelia Gallo Endowed Fellow, Lucile Packard Foundation for Children's Health (July 2011-June 2012)
  • Scholar, Bass Society of Pediatric Scholars (June 2012)

Boards, Advisory Committees, Professional Organizations

  • Member, American Thoracic Society (2009 - Present)

Professional Education

  • Fellowship:Stanford Hospital and Clinics (2012) CA
  • Residency:Stanford Hospital and Clinics (2009) CA
  • Internship:Stanford Hospital and Clinics (2007) CA
  • Board Certification: Pediatric Pulmonary, American Board of Pediatrics (2012)
  • Board Certification: Pediatrics, American Board of Pediatrics (2009)
  • Board Certification, American Board of Pediatrics, Pediatric Pulmonary (2012)
  • Medical Education:David Geffen School of Medicine at UCLA (2006) CA
  • MD, University of California, Los Angeles, Medicine (2006)

Research & Scholarship

Current Research and Scholarly Interests

My current research investigates the determinants of health for Hispanic patients with cystic fibrosis. Specifically, I am interested in identifying modifiable causes of health inequalities.
I have had a range of mentored research experiences during my educational and medical training, ranging in developmental biology to community-based participatory research. My prior work included conducting a community needs assessment for caregivers of Vietnamese-American children in San Jose, CA.
During my fellowship and postdoctoral training, my research has involved using large administrative databases to explore healthcare utilization patterns in Hispanic patients with cystic fibrosis.


All Publications

  • Assessing differences in mortality rates and risk factors between Hispanic and non-Hispanic patients with cystic fibrosis in California. Chest Buu, M. C., Sanders, L. M., Mayo, J., Milla, C. E., Wise, P. H. 2015


    Over the past 30 years, therapeutic advances have extended the median life span of patients with cystic fibrosis (CF). Hispanic patients are a vulnerable subpopulation with high of prevalence of risk factors for worse health outcomes. The consequences of these differences on health outcomes have not been well described. The objective of this study is to characterize the difference in health outcomes, including mortality rate, between Hispanic and non-Hispanic patients with CF.Retrospective analysis of CF Foundation patient registry data of California residents with CF, diagnosed during or after 1991, from 1991-2010. Ethnicity was self-reported. Primary outcome was mortality. Hazard ratios were estimated from a Cox regression model, stratified by gender and adjusted for socioeconomic status, clinical risk factors, and year of diagnosis.Of 1719, 485 (28.2%) self-identified as Hispanic. Eighty-five deaths occurred, with an overall mortality rate of 4.9%. Unadjusted mortality rate was higher among Hispanic patients than non-Hispanic patients (9.1% vs. 3.3%, p<0.0001). Compared with non-Hispanic patients, Hispanic patients had lower survival rate 18 years post-diagnosis (75.9% vs. 91.5%, p<0.0001). Adjusted for socioeconomic status and clinical risk factors, Hispanic patients had increased rate of death compared to non-Hispanic patients (HR 2.81, 95% CI 1.70-4.63).Hispanic patients with CF have a higher mortality rate than non-Hispanic patients, even after adjusting for socioeconomic status and clinical severity. Further investigation of mechanism for the measured difference in lung function will help inform interventions and improve the health of all CF patients.

    View details for DOI 10.1378/chest.14-2189

    View details for PubMedID 26086984

  • Asthma, tobacco smoke and the indoor environment: a qualitative study of sheltered homeless families JOURNAL OF ASTHMA Buu, M. C., Carter, L., Bruce, J. S., Baca, E. A., Greenberg, B., Chamberlain, L. J. 2014; 51 (2): 142-148


    Asthma is common in homeless children with an incidence of 28-40%. There are few published studies investigating asthma in homeless children. This study examines the perspectives of both caregivers and shelter staff regarding challenges and opportunities of caring for children with asthma.A focus group of sheltered parents (nā€‰=ā€‰10) with children who have asthma was conducted to identify barriers to optimal asthma management. Key informant interviews (nā€‰=ā€‰6) were conducted with shelter staff to discuss the shelter systems and policies to address childhood asthma. Data were audio-recorded and transcribed. A representative analysis team performed qualitative theme analysis.Key themes across 5 domains were identified: asthma education, access to asthma medication and equipment, asthma action plans, structural barriers to asthma management and environmental triggers. Parents identified multiple asthma triggers present in the shelter environment but cited lack of control as a barrier to remediation. Shelter staff desired elimination of asthma triggers but refer to the lack of resources as the primary barrier. Shelter staff favored a smoking ban on shelter property but named challenges to policy implementation. Both parents and staff identified asthma education and increased access to medications would be helpful.Policies to reduce environmental exposures, such as a smoking ban, to asthma triggers has the potential to improve the health of sheltered children with asthma.

    View details for DOI 10.3109/02770903.2013.857682

    View details for Web of Science ID 000331908900005

    View details for PubMedID 24147583