Chief Resident / Clinical Instructor at Stanford University School of Medicine. Graduate of Stanford Internal Medicine / Global Health residency program.

Professional interests include epidemiology, qualitative research, and health economics. Long-term interests include developing and researching appropriate technologies and innovations for use in low-resource settings, with an emphasis on design thinking and social justice. Areas of application include non-communicable diseases and cardiovascular conditions. Other formal training includes bench and translational research background in immunology, cancer biology, and neuroscience.

Clinical Focus

  • Internal Medicine
  • Cardiology
  • Global Health

Academic Appointments

Administrative Appointments

  • Clinical Instructor / Attending Physician, Stanford Department of Internal Medicine, VA Palo Alto Medical Center (2016 - 2017)
  • Chief Resident, Stanford Internal Medicine Residency Program (2016 - 2017)

Honors & Awards

  • Johnson and Johnson Global Health Scholar, Yale/Stanford Johnson & Johnson Global Health Scholars Program (2015)
  • Johnson and Johnson Global Health Scholar, Yale/Stanford Johnson & Johnson Global Health Scholars Program (2014)
  • Gold Humanism Honor Society, Arnold P. Gold Foundation (2012)
  • Asian Pacific American Medical Student Association Global Health Fellowship, Asian Pacific American Medical Student Association (2012)
  • Stanford Medical Scholars Research Fellowship, Stanford University School of Medicine (2009-2011)
  • The John E. Linck III Memorial Graduation Prize, Yale University (2008)
  • Yale College Dean’s Research Fellowship in the Sciences, Yale University (2007)
  • Yale Science and Engineering Research Presentation Travel Prize, Yale University (2007)
  • 1st Place Presentation, Yale Undergraduate Research Symposium in the Biological Sciences, Yale University (2007)
  • The Paul K. and Evalyn Elizabeth Cook Richter Summer Fellowship, Yale University (2007)
  • The Gary Stein Memorial Internship, Yale University (2006)
  • Robert C. Byrd Congressional Honors Scholarship, United States Department of Education (2005)

Boards, Advisory Committees, Professional Organizations

  • Faculty Fellow, Stanford Center for Innovation in Global Health (2016 - Present)
  • Representative, Chief Resident's Council, Department of Graduate Medical Education, Stanford University Medical Center (2016 - Present)
  • Representative,Committee on Residency Reform, Department of Medicine, Stanford University Medical Center (2014 - Present)
  • Resident Member, American College of Cardiology (2015 - Present)
  • Resident Member, American College of Physicians (2013 - Present)
  • Member, Stanford Center for Population Health Sciences (2015 - Present)
  • Member, Stanford Society of Physician Scholars (2013 - Present)
  • Member, Young Professionals Chronic Disease Network (2013 - Present)
  • Member, California Medical Association (2013 - Present)
  • Resident: Medicine/Global Health, Stanford University Hospital (2013 - Present)
  • Editor-in-Chief, The Stanford Medical Student Clinical Journal (2010 - 2012)

Professional Education

  • Board Certification: Internal Medicine, American Board of Internal Medicine (2016)
  • Residency:Stanford University GME (2016) CA
  • Doctor of Medicine, Stanford University School of Medicine, Clinical Research, Immunology, Global Health (2013)
  • Bachelor of Science, Yale University, Molecular, Cellular & Developmental Biology (Neurobiology Track) (2008)
  • Non-degree Program, Hasso Plattner Institute of Design at Stanford University, Entrepreneurial Design for Extreme Affordability Program (2012)

Service, Volunteer and Community Work

  • Hepatitis B Clinic Coordinator, Pacific Free Clinic (2009 - 2009)

    - Created protocols, staffed, and managed the Hepatitis B program at Pacific Free Clinic,a student-run health clinic providing medical care for uninsured and underserved populations in the San Jose, CA area.
    - Screened and vaccinated at-risk individuals against Hepatitis B virus, monitored infected patients, and reported epidemiological data to the Santa Clara Department of Public Health.


    San Jose, CA

  • Clinical Volunteer, Arbor Free Clinic (2008 - 2013)

    - Provided medical care at student-run clinic delivering health care for uninsured and underserved populations in the East Palo Alto, CA area.


    Menlo Park, CA

  • Intern, Nyaya Health (2006 - 2008)

    - Developed information sharing infrastructure for nonprofit NGO collaborating with the Nepali government to construct and run a hospital in rural Nepal.
    - Traveled to Kathmandu and Sanfebagar to recruit clinic staff, test telecommunications devices for telemedicine opportunities, and perform administrative duties on behalf of the clinic with UNICEF and the Nepali National Center for STD and AIDS Control.


    Sanfebagar, Nepal

  • Health Educator, Yale University (2004 - 2005)

    Teaching member of initiative to write, teach, and test a health education curriculum for New Haven, CT high school students


    New Haven, CT

  • Community Associate, Stanford University (2009 - 2011)

    Residential advisor in charge of maintaining graduate student safety and wellness through workshops, mentoring, social programming, and mental health initiatives


    Stanford, CA

  • Johnson & Johnson Global Health Scholar, Yale-Stanford Johnson & Johnson Global Health Scholars Program (2015)

    Delivered care for patients and taught medical students and interns at the University Central Hospital of Kigali (CHUK) in Kigali, Rwanda.


    Kigali, Rwanda


  • Andrew Chang, Carey Lee, Pamela Pavkov, Karen Lee, Michael Strasser. "United States Patent Attorney docket number: S11-190 Provisional Patent: “Low Cost Bubble CPAP Device”", Jun 1, 2011


All Publications

  • Regenerative Medicine: Potential Mechanisms of Cardiac Recovery in Takotsubo Cardiomyopathy. Current treatment options in cardiovascular medicine Chang, A. Y., Kittle, J. T., Wu, S. M. 2016; 18 (3): 20-?


    Takotsubo cardiomyopathy is an increasingly reported cause of acute chest pain and acute heart failure and is often associated with significant hemodynamic compromise. The illness is remarkable for the reversibility in systolic dysfunction seen in the disease course. While the pathophysiology of takotsubo syndrome is not completely elucidated, research suggests the presence of a cytoprotective process that allows the myocardium to recover following the inciting insult. Here, we summarize molecular and histologic studies exploring the response to injury in takotsubo disease and provide some discussion on how they may contribute to further investigations in cardiac recovery and regeneration.

    View details for DOI 10.1007/s11936-016-0443-0

    View details for PubMedID 26874708

  • IL6 Signaling in Peripheral Blood T Cells Predicts Clinical Outcome in Breast Cancer. Cancer research Wang, L., Miyahira, A. K., Simons, D. L., Lu, X., Chang, A. Y., Wang, C., Suni, M. A., Maino, V. C., Dirbas, F. M., Yim, J., Waisman, J., Lee, P. P. 2016


    IL6 is a pleiotropic cytokine with both pro- and anti-inflammatory properties, which acts directly on cancer cells to promote their survival and proliferation. Elevated serum IL6 levels negatively correlate with survival of cancer patients, which is generally attributed to the direct effects of IL6 on cancer cells. How IL6 modulates the host immune response in cancer patients is unclear. Here, we show the IL6 signaling response in peripheral blood T cells is impaired in breast cancer patients and is associated with blunted Th17 differentiation. The mechanism identified involved downregulation of gp130 and IL6Rα in breast cancer patients and was independent of plasma IL6 levels. Importantly, defective IL6 signaling in peripheral blood T cells at diagnosis correlated with worse relapse-free survival. These results indicate that intact IL6 signaling in T cells is important for controlling cancer progression. Furthermore, they highlight a potential for IL6 signaling response in peripheral blood T cells at diagnosis as a predictive biomarker for clinical outcome of breast cancer patients. Cancer Res; 77(5); 1-8. ©2016 AACR.

    View details for DOI 10.1158/0008-5472.CAN-16-1373

    View details for PubMedID 27879265

  • The Global Health Implications of e-Cigarettes. JAMA Chang, A. Y., Barry, M. 2015; 314 (7): 663-664

    View details for DOI 10.1001/jama.2015.8676

    View details for PubMedID 26284714

  • Evaluating the Cost-effectiveness of Catheter Ablation of Atrial Fibrillation. Arrhythmia & electrophysiology review Chang, A. Y., Kaiser, D., Ullal, A., Perino, A. C., Heidenreich, P. A., Turakhia, M. P. 2014; 3 (3): 177-183


    Atrial fibrillation (AF) is one of the most common cardiac conditions treated in primary care and specialty cardiology settings, and is associated with considerable morbidity, mortality and cost. Catheter ablation, typically by electrically isolating the pulmonary veins and surrounding tissue, is more effective at maintaining sinus rhythm than conventional antiarrhythmic drug therapy and is now recommended as first-line therapy. From a value standpoint, the cost-effectiveness of ablation must incorporate the upfront procedural costs and risks with the benefits of longer term improvements in quality of life (QOL) and healthcare utilisation. Here, we present a primer on cost-effectiveness analysis (CEA), review the data on cost-effectiveness of AF ablation and outline key areas for further investigation.

    View details for DOI 10.15420/aer.2014.3.3.177

    View details for PubMedID 26835088

  • Trial of Zolpidem, Eszopiclone, and Other GABA Agonists in a Patient with Progressive Supranuclear Palsy Case Reports in Medicine Chang, A. Y., Weirich, E. 2014; 2014: 5
  • Spatial organization of dendritic cells within tumor draining lymph nodes impacts clinical outcome in breast cancer patients JOURNAL OF TRANSLATIONAL MEDICINE Chang, A. Y., Bhattacharya, N., Mu, J., Setiadi, A. F., Carcamo-Cavazos, V., Lee, G. H., Simons, D. L., Yadegarynia, S., Hemati, K., Kapelner, A., Ming, Z., Krag, D. N., Schwartz, E. J., Chen, D. Z., Lee, P. P. 2013; 11
  • Center-surround vs. distance-independent lateral connectivity in the olfactory bulb FRONTIERS IN NEURAL CIRCUITS Kim, D. H., Chang, A. Y., McTavish, T. S., Pateland, H. K., Willhite, D. C. 2012; 6


    Lateral neuronal interactions are known to play important roles in sensory information processing. A center-on surround-off local circuit arrangement has been shown to play a role in mediating contrast enhancement in the visual, auditory, and somatosensory systems. The lateral connectivity and the influence of those connections have been less clear for the olfactory system. A critical question is whether the synaptic connections between the primary projection neurons, mitral and tufted (M/T) cells, and their main inhibitory interneurons, the granule cells (GCs), can support a center-surround motif. Here, we study this question by injecting a "center" in the glomerular layer of the olfactory bulb (OB) with a marker of synaptic connectivity, the pseudorabies virus (PRV), then examines the distribution of labeling in the "surround" of GCs. We use a novel method to score the degree to which the data fits a center-surround model vs. distance-independent connectivity. Data from 22 injections show that M/T cells generally form lateral connections with GCs in patterns that lie between the two extremes.

    View details for DOI 10.3389/fncir.2012.00034

    View details for Web of Science ID 000304625700001

    View details for PubMedID 22666190

  • Learning to live together: harnessing regulatory T cells to induce organ transplant tolerance. Yale journal of biology and medicine Chang, A. Y., Bhattacharya, N. 2011; 84 (4): 345-351


    The discovery of immune cells with regulatory effects has created considerable excitement for their potential use in inducing tolerance to transplanted tissues. Despite the fact that these cells possess essential functions in vivo, attempts to translate them into effective clinical therapies has proved challenging due to a number of unanticipated complexities in their behavior. This article provides a broad summary of research done to understand the largest of the regulatory cell subtypes, namely CD4+Foxp3+ Regulatory T cells (T(Regs)). Special attention will be paid to current and future difficulties in using T(Regs) clinically, as well as room for improvement and innovation in this field.

    View details for PubMedID 22180672

  • Lateral connectivity in the olfactory bulb is sparse and segregated FRONTIERS IN NEURAL CIRCUITS Kim, D. H., Phillips, M. E., Chang, A. Y., Patel, H. K., Nguyen, K. T., Willhite, D. C. 2011; 5


    Lateral connections in the olfactory bulb were previously thought to be organized for center-surround inhibition. However, recent anatomical and physiological studies showed sparse and distributed interactions of inhibitory granule cells (GCs) which tended to be organized in columnar clusters. Little is known about how these distributed clusters are interconnected. In this study, we use transsynaptic tracing viruses bearing green or red fluorescent proteins to further elucidate mitral- and tufted-to-GC connectivity. Separate sites in the glomerular layer were injected with each virus. Columns with labeling from both viruses after transsynaptic spread show sparse red or green GCs which tended to be segregated. However, there was a higher incidence of co-labeled cells than chance would predict. Similar segregation of labeling is observed from dual injections into olfactory cortex. Collectively, these results suggest that neighboring mitral and tufted cells receive inhibitory inputs from segregated subsets of GCs, enabling inhibition of a center by specific and discontinuous lateral elements.

    View details for DOI 10.3389/fncir.2011.00005

    View details for Web of Science ID 000290153700001

    View details for PubMedID 21559072

  • Hydrophilic Graft Modification of a Commercial Crystalline Polyolefin J. Polym. Sci. Part A: Polym. Chem. Jihoon Shin, Andrew Y. Chang, Lacie V. Brownell, Ira O. Racoma, Coreen H. Ozawa, Ho-Yong Chung, Shufu Peng, Chulsung Bae 2008; 46: 3533-3545
  • Regioselective functionalization of high-molecular-weight crystalline polyolefins via C-H activation of methyl side group Polymer Preprints Hoyong Chung, Andrew Y. Chang, Ira O. Racoma, Coreen H. Ozawa, Chulsung Bae 2006; 47: 247-248