Dr. Chien-Hsiang Weng, MD, MPH, FAAFP, also known as "Joey," is a Clinical Associate Professor in the Department of Family Medicine. He is a board-certified family medicine physician and dedicated researcher. Dr. Weng earned his MD from National Yang-Ming University in Taiwan and his MPH from the Johns Hopkins Bloomberg School of Public Health, with a focus on epidemiology and biostatistics. Following medical school, he served as a medical officer in the Taiwanese Navy. He then completed his family medicine residency at Dartmouth and pursued a postdoctoral research fellowship in cancer epidemiology and surgical oncology at Johns Hopkins, where he was mentored by world-renowned experts Professor Martha Zeiger and Professor Christopher Umbricht.
Dr. Weng is an active family medicine physician with deep expertise in clinical epidemiology. His current research is centered on pharmacoepidemiology and drug safety, where he leverages large-scale real-world data to evaluate the safety and outcomes of widely used medications. In addition, his work spans a broad range of clinical and population health topics, including endocrine and cardiovascular diseases (thyroid disorders, diabetes, obesity, atrial fibrillation), dementia, glaucoma, and emerging diseases. He has also contributed significantly to studies on hearing loss, inflammatory bowel disease, and cancer epidemiology, with an ongoing interest in health disparities and clinical outcomes research. As principal investigator, Dr. Weng has led numerous international, national, and regional studies that advance both scientific understanding and patient care. Dedicated to medical education, he actively mentors medical students at Brown University during their clinical rotations, as well as undergraduate and graduate students pursuing research, helping to foster the development of future healthcare professionals.
Dr. Weng also serves as a member of the Clinical Faculty Advisory Committee (CFAC), where he represents over 1,500 clinical faculty members. In this role, he addresses critical issues, reviews policies, and provides guidance on procedural matters to support the clinical faculty community.
| Charles L Bennett, Mia Lynch, Gretchen LeFever Watson, Linda Martin, June M McKoy, Laurence Klotz, Sumimasa Nagai, Chien-Hsiang Weng, Iain C Macdougall, June M McKoy, Kevin B Knopf, Kenneth R Carson, Chadi Nabhan, Joseph Magagnoli, Peter Georgantopoulos, Edward B Smith, Edward Zyskowski, Stefano Luminari, Demir Uslu, David Aboulafia. "Abrupt fluoroquinolone-associated suicides: a SONAR report from North America, Europe, Australia, and Asia." European journal of internal medicine, 2025. |
| Weng, Chien-Hsiang, Lin, Jun-Fu, Wang, Jing-Jie. "Acute Respiratory Tract Infection and Sudden Sensorineural Hearing Loss: A Multinational Cohort Study." Diagnostics, vol. 15, no. 12, 2025, pp. 1462. |
| Lu, Yi-An, Tien, Peng-Tai, Cheng, Yih-Dih, Hsieh, Yow-Wen, Cho, Der-Yang, Tsai, Shang-Feng, Weng, Chien-Hsiang, Lin, Heng-Jun, Lin, Hui-Ju, Wang, I-Jong, Chou, Chien-Chih. "Association of Dipeptidyl Peptidase-4 Inhibitors with Glaucoma Risk in Patients with Type 2 Diabetes: A Nationwide Cohort Study." Ophthalmology Science, 2025, pp. 100827. |
| Weng CH, Chan PA, Magagnoli J, Bennett CL. "Comment on: Association of GLP1-Receptor Agonists with Risk of Hepatocellular Carcinoma: A Retrospective Cohort Study." Drug safety : an international journal of medical toxicology and drug experience, 2025. |
| Pan SY, Weng CH, Tsai SF, Sheen YJ, Lin JF, Lin CH, Wang IJ, Chou CC. "Comparative Risk of Glaucoma in Patients Using Sodium-glucose Cotransporter-2 Inhibitors and Metformin: A Multinational Cohort Study." American Journal of Ophthalmology, 2025. |
| Tse CS, Lewis JD, Horst SN, Saha S, Taleban S, Shah SA, Lutz M, Fiske HW, Brown LA, Kuehnel R, Bonhomme B, Weng CH, Weaver SA, Cross RK, Hunt MG, Crohn’s and Colitis Foundation’s Clinical Research Alliance. "Inflammatory Bowel Diseases-Specific Cognitive Behavioral Therapy Delivered via Telehealth Reduces Disability: ADEPT (Addressing Disability Effectively with Psychosocial Telemedicine) Pragmatic Randomized Controlled Trial." American Journal of Gastroenterology, 2025. |
| Weng CH, Bennett CL, Magagnoli J, Richardson C. "Post-Marketing Safety Assessment for Glucagon-Like Peptide-1 and Dual Incretin Therapies in Diabetes and Obesity." Journal of clinical pharmacology, 2025. |
| Tse CS, Hunt MG, Lewis JD, Ostrov A, Shah SA, Fiske HW, Burwell SM, Forster EM, Gaidos JKJ, Kuehnel RH, Sheng E, Lu M, Weng CH, Wolk CB, Soto C, Weaver SA, Melmed GY, Siegel CA, van Deen WK. "Preferences, Acceptability, and Utilization of Multimodal Self-Help Interventions in Adults With Inflammatory Bowel Diseases: A Pragmatic Multicenter Study With Patients and Clinicians." Inflammatory Bowel Diseases, 2025. |
| Chou, Chien-Chih, Pan, Ssu-Yu, Weng, Chien-Hsiang. "Reply Re: Chou et al.: Association between semaglutide and nonarteritic anterior ischemic optic neuropathy: a multinational population-based study." Ophthalmology, 2025. |
| Chou CC, Pan SY, Weng CH. "Reply Re: Chou et al.: Association between semaglutide and nonarteritic anterior ischemic optic neuropathy: a multinational population-based study." Ophthalmology, 2025. |
| Pan, Ssu-Yu, Weng, Chien-Hsiang, Tsai, Shang-Feng, Sheen, Yi-Jing, Lin, Hui-Ju, Tien, Peng-Tai, Lin, Jun-Fu, Lin, Ching-Heng, Wang, I-Jong, Chou, Chien-Chih. "Risk of Retinal Vein Occlusion Between GLP-1 Receptor Agonists and DPP-4 Inhibitors in Type 2 Diabetes: A Retrospective Cohort Study." Ophthalmology Science, 2025, pp. 100734. |
| Pan SY, Weng CH, Tsai SF, Lin HJ, Lin JF, Lin CH, Wang IJ, Chou CC. "Use of SGLT2 Inhibitors Versus DPP-4 Inhibitors and Age-Related Macular Degeneration in Patients WithType 2 Diabetes: A Multinational Cohort Study." Investigative Ophthalmology & Visual Science, vol. 66, no. 4, 2025, pp. 58. |
| Chou, Chien-Chih, Pan, Ssu-Yu, Sheen, Yi-Jing, Lin, Jun-Fu, Lin, Chien-Heng, Lin, Hui-Ju, Wang, I-Jong, Weng, Chien-Hsiang. "Association between Semaglutide and Non-Arteritic Anterior Ischemic Optic Neuropathy: A Multinational Population-Based Real-World Study." Ophthalmology, 2024. |
| Pan, Ssu-Yu, Chen, Yun-Yu, Hsu, Min-Yen, Sheen, Yi-Jing, Weng, Chien-Hsiang, Lu, Yi-An, Wang, I-Jong, Wu, Mei-Hua, Chou, Chien-Chih. "Associations of different types of statins with the risk of open-angle glaucoma: a systematic review and network meta-analysis." Graefe's Archive for Clinical and Experimental Ophthalmology, 2024. |
| Wang, Jing-Jie, Jiang, Rong-San, Weng, Chien-Hsiang. "Establishment of the Normative Value of Classical Bluestone’s Nine-Step Inflation/Deflation Tympanometric Eustachian Tube Function Test." Diagnostics, vol. 14, no. 24, 2024, pp. 2810. |
| Weng CH, Kuo HK, Aho B, McGookin ED, Chan PA. "Factors Correlated with Anticoagulation Choice in Primary Care Patients with Atrial Fibrillation and High Stroke Risk." J GEN INTERN MED, 2024. |
| Sheng, Emily, Lu, Michelle, Ostrov, Arthur H., Burwell, Stephanie, Shah, Samir A., Fiske, Hannah, Gaidos, Jill K. J., Forster, Erin M., Hunt, Melissa G., Kuehnel, Robert, Soto, Catherine, Weng, Chien-Hsiang, Siegel, Corey A., Melmed, Gil Y., Lewis, James, van Deen, Welmoed, Tse, Chung Sang. "S37 Patients’ Preference and Acceptability of Inflammatory Bowel Diseases Self-Help Interventions: CORE Study (Confidence Optimization through Resources for Education, Engagement, and Empowerment)." American Journal of Gastroenterology, vol. 119, no. 12S, 2024, pp. S11-S11. |
| Chou, Chien-Chih, Lu, Yi-An, Weng, Chien-Hsiang, Lin, Hui-Ju, Wang, I-Jong, Jou, Tzuu-Shuh, Wang, Chun-Yuan, Tsai, Fuu-Jen, Cheng, Yih-Dih, Hsu, Tzu-Ju, Hung, Yu-Tung, Huang, Yu-han, Tien, Peng-Tai. "The association between antiglaucomatous agents and Alzheimer’s disease." Eye, 2024. |
| Butt WW, Wieland DR, Wang H, Lin CH, Wang JJ, Weng CH. "Tinnitus and Dementia Risk: A Nationwide Population-based Case-control Study." The Journal of laryngology and otology, 2024, pp. 1-25. |
| Weng CH, Zhou S, Saal A, Hafferty M, McGuire DC, Chan PA. "BNT162b2 and mRNA-1273 Vaccine Effectiveness against SARS-CoV-2 and Variants in the Urban Underserved Population." Rhode Island medical journal (2013), vol. 106, no. 1, 2023, pp. 26-28. |
| Tse CS, Weng CH, Kwon M, Wolk CB, Brown LA, Malani K, Shah SA, Fine SD. "Increased Risks for Suicide, Self-Harm, Substance Use, and Psychiatric Disorders in Adults With Inflammatory Bowel Disease: A Nationwide Study in the United States From 2007 to 2017." Inflammatory Bowel Diseases, 2023. |
| Tse, Chung Sang, Shah, Samir A., Saha, Sumona, Taleban, Sasha, Horst, Sara, Lutz, Megan, Fiske, Hannah, Weng, Chien-Hsiang, Hunt, Melissa G., Brown, Lily, Bonhomme, Brittaney, Kuehnel, Robert, Weaver, Alandra, Cross, Raymond, Long, Millie D., Lewis, James. "S887 Health-Related Social Needs & Disease Activity Are Independently Associated With Moderate-to-Severe IBD-Related Disability." American Journal of Gastroenterology, vol. 118, no. 10S, 2023, pp. S661-S663. |
| Tse, Chung Sang, Fiske, Hannah W., Weng, Chien-Hsiang, Shah, Samir A., Lewis, James D., Siegel, Corey A., Oliver, Brant J., Weaver, Alandra, Melmed, Gil, van Deen, Welmoed K. "Su1790 IMPROVING HEALTH CONFIDENCE IN ADULTS WITH IBD MAY REDUCE HEALTHCARE UTILIZATION INDEPENDENT OF DISEASE DURATION." Gastroenterology, vol. 164, no. 6, 2023, pp. S-682-S-683. |
| Tse CS, Melmed GY, Siegel CA, Weng CH, Shah SA, Weaver SA, Oliver BJ, Elwyn G, van Deen WK. "Bidirectional Correlations Between Health Confidence and Inflammatory Bowel Disease Activity: A Nationwide Longitudinal Cohort Study." Inflammatory Bowel Diseases, 2022. |
| Tse, Chung Sang, Melmed, Gil, Weng, Chien-Hsiang, Shah, Samir, Weaver, Alandra, Oliver, Brant, Elwyn, Glyn, Siegel, Corey, van Deen, Welmoed. "LONGITUDINAL STUDY OF THE IMPACT OF HEALTH CONFIDENCE ON INFLAMMATORY BOWEL DISEASE OUTCOMES AND HEALTHCARE UTILIZATION." Gastroenterology, vol. 162, no. 3, 2022, pp. S91-S92. |
| Tse, Chung Sang, Melmed, Gil, Elwyn, Glyn, Weng, Chien-Hsiang, Shah, Samir A., Weaver, Alandra, Oliver, Brant J., Siegel, Corey A., Deen, Welmoed K. van. "Sa1629: LONGITUDINAL STUDY OF THE IMPACT OF HEALTH CONFIDENCE ON DISEASE ACTIVITY AND HEALTHCARE UTILIZATION IN ADULTS WITH INFLAMMATORY BOWEL DISEASE." Gastroenterology, vol. 162, no. 7, 2022, pp. S-446-S-447. |
| Wieland DR, Wieland JR, Wang H, Chen YH, Lin CH, Wang JJ, Weng CH. "Thyroid Disorders and Dementia Risk: A Nationwide Population-Based Case-Control Study." Neurology, 2022. |
| Weng CH, L'Heureux A, Weng CH, Lin YT, Chen YH, Lin CH, Lin TH. "Association Between Thyroid Disorders and Pancreatic Cancer Risk: A Nationwide Population-Based Case-Control Study." Pancreas, vol. 50, no. 4, 2021, pp. e41-e43. |
| Weng, Chien-Hsiang, Butt, Wesley Wing Wah, Brooks, Meredith B., Clarke, Claudia, Jenkins, Helen E., Holland, Sabina D., Chiang, Silvia S. "Diagnostic Value of Symptoms for Pediatric SARS-CoV-2 Infection in a Primary Care Setting." [], 2021. |
| Weng, Chien-Hsiang, Butt, Wesley Wing Wah, Brooks, Meredith B., Clarke, Claudia, Jenkins, Helen E., Holland, Sabina D., Chiang, Silvia S. "Diagnostic value of symptoms for pediatric SARS-CoV-2 infection in a primary care setting." PLOS ONE, vol. 16, no. 12, 2021, pp. e0249980. |
| Weng, Chien-Hsiang, Saal, Andrew, McGuire, Daniel C., Chan, Philip A. "Persistently high SARS-CoV-2 positivity rate and incidence for Hispanic/Latinos during state reopening in an urban setting: a retrospective cohort study." Epidemiology and Infection, 2021, pp. 1-14. |
| Tse, Chung Sang, Weng, Chien-Hsiang, Kwon, Michelle, Shah, Samir A., Fine, Sean. "Sa570 SUICIDE RISK AMONG ADULTS WITH INFLAMMATORY BOWEL DISEASE: A DECADE-LONG ANALYSIS FROM A UNITED STATES NATIONAL DATABASE." Gastroenterology, vol. 160, no. 6, 2021, pp. S-556-S-557. |
| Weng CH, Saal A, Butt WW, Bica N, Fisher JQ, Tao J, Chan PA. "Bacillus Calmette-Guérin vaccination and clinical characteristics and outcomes of COVID-19 in Rhode Island, United States: a cohort study." Epidemiology and Infection, vol. 148, 2020, pp. 1-9. |
| Weng, Chien-Hsiang, Chan, Philip A. "BCG as an adjunct or alternative vaccine to prevent COVID-19?." Journal of Travel Medicine, 2020. |
| Weng, Chien-Hsiang, Okawa, Erin, Roberts, Mary, Park, Sue K., Umbricht, Christopher B, Manson, JoAnn, Eaton, Charles. "Breast Cancer Risk in Postmenopausal Women with Medical History of Thyroid Disorder in the Women's Health Initiative." Thyroid, vol. 30, no. 4, 2020, pp. 519-530. |
| Weng, Chien‐Hsiang, Saal, Andrew, Butt, Wesley Wing Wah, Chan, Philip A. "Characteristics and Clinical Course and Outcome of COVID‐19 in Hispanic/Latino Patients in a Community Setting: A Retrospective Cohort Study." Journal of Medical Virology, vol. 93, no. 1, 2020, pp. 115-117. |
| Weng, Chien‐Hsiang, Saal, Andrew, Chan, Philip A. "Differences in Clinical Characteristics of Covid‐19 in Hispanic/Latino Population." Transboundary and Emerging Diseases, 2020. |
| Weng, Chien-Hsiang, Saal, Andrew, Chan, Philip A. "High Prevalence of SARS-CoV-2 Infection Among the Uninsured Hispanic/Latino Population: a Retrospective Cohort Study." Journal of General Internal Medicine, 2020. |
| Weng CH, Wieland DR, Luo X, Webb KL, Papandonatos GD. "The effect of cannabis on prostate-specific antigen level among men in the United States: results from the National Health and Nutrition Examination Survey." World Journal of Urology, 2020. |
| L'Heureux A, Wieland DR, Weng CH, Chen YH, Lin CH, Lin TH, Weng CH. "Association Between Thyroid Disorders and Colorectal Cancer Risk in Adult Patients in Taiwan." JAMA Network Open, vol. 2, no. 5, 2019, pp. e193755. |
| Chang SL, Lin WL, Weng CH, Wu SJ, Tsai HJ, Wang SM, Peng CC, Chang JH. "Atropine use may lead to post-operative respiratory acidosis in neonates receiving ductal ligation: A retrospective cohort study." Pediatrics and neonatology, vol. 59, no. 2, 2018, pp. 136-140. |
| Weng CH, Tien CP, Li CI, L'Heureux A, Liu CS, Lin CH, Lin CC, Lai SW, Lai MM, Lin WY. "Mid-upper arm circumference, calf circumference and mortality in Chinese long-term care facility residents: a prospective cohort study." BMJ Open, vol. 8, no. 5, 2018, pp. e020485. |
| Weng CH, Chen YH, Lin CH, Luo X, Lin TH. "Thyroid disorders and breast cancer risk in Asian population: a nationwide population-based case-control study in Taiwan." BMJ Open, vol. 8, no. 3, 2018, pp. e020194. |
| Weng CH, Wieland DR, L'Heureux A, Chen YH, Lin CH, Lin TH. "Thyroid Disorders and Colorectal Cancer Risk in Asian Population: a nationwide population-based case–control study in Taiwan." Thyroid, 2018. |
| Weng CH, Chen YH, Luo X, Lin CH, Lin TH. "Thyroid Disorders and Breast Cancer Risk in Asian Population: A Nationwide Population-Based Study." Thyroid, 2016. |
| Weng CH, Wang RC, Wu CC, Lin TH. "Treatment of synchronous adenocarcinoma and lymphoma of the stomach: A case report." Molecular and clinical oncology, vol. 5, no. 6, 2016, pp. 783-785. |
| Aragon Han P, Weng CH, Khawaja HT, Nagarajan N, Schneider EB, Umbricht CB, Witwer KW, Zeiger MA. "MicroRNA Expression and Association with Clinicopathologic Features in Papillary Thyroid Cancer: A Systematic Review." Thyroid, vol. 25, no. 12, 2015, pp. 1322-9. |
| Weng CH, Aragon Han P, Khawaja H, Nagarajan N, Schneider E, Umbricht CB, Zeiger M. "Mir-146b association with Lymph Node Metastasis in patients with Papillary Thyroid Cancer: A Systematic Review." Thyroid, 2014. |
| Weng CH, Wang RC, Hsieh TY, Tsai CA, Lin TH. "Penicillium pneumonia in a patient with newly diagnosed Franklin disease." The American Journal of the Medical Sciences, vol. 344, no. 1, 2012, pp. 69-71. |
| Weng CH, Chen JB, Wang J, Wu CC, Yu Y, Lin TH. "Surgically curable non-iron deficiency microcytic anemia: Castleman's disease." Onkologie, vol. 34, no. 8-9, 2011, pp. 456-8. |
Dr. Chien-Hsiang Weng, MD, MPH, FAAFP, serves as a Clinical Associate Professor in the Department of Family Medicine. He is a board-certified family medicine physician with specialized fellowship training in cancer and clinical epidemiology. Dr. Weng’s current research focuses on pharmacoepidemiology and drug safety, leveraging large-scale real-world data to evaluate the safety and outcomes of widely used medications. Beyond this primary focus, his work encompasses a broad range of epidemiological studies on endocrine and cardiovascular diseases (including thyroid disorders, diabetes, obesity, and atrial fibrillation), dementia, glaucoma, emerging diseases, hearing loss, inflammatory bowel disease, and cancer. His research frequently involves advanced outcomes analysis using big data from national and international sources.
Dr. Weng also has a strong interest in population health, primary care research, and healthcare disparities, often drawing on data from primary care settings to identify gaps and drive improvements. He has led multiple international research projects and is an active collaborator in national and international studies aimed at advancing both scientific knowledge and clinical practice.
NHIRD Epidemiological Studies (Weng - co-PI)
2020-2023 (SC Health Care System)
| Year | Degree | Institution |
|---|---|---|
| 2013 | MPH | The Johns Hopkins University |
| 2010 | MD | National Yang Ming University |
| Resident Physician | NH Dartmouth Family Medicine Residency, family medicine | 2014-2017 | Concord, NH |
| Postdoctoral Fellow | Johns Hopkins School of Medicine, Surgery | 2013-2014 | Baltimore, MD |
Fellow (FAAFP) - American Academy of Family Physicians
E. Chester Ridgway Trainee of American Thyroid Association, 2014 & 2015 & 2016
American Thyroid Association
American Academy of Family Physicians
American Association for Cancer Research
American Society of Clinical Oncology
Endocrine Society
American Public Health Association
| Fellow of the American Academy of Family Physicians | American Academy of Family Physicians | 2020- | |
| Diplomate | American Board of Family Medicine, Family medicine | 2017- | |
| Medical License | Rhode Island | 2017- | |
| Medical License | New Hampshire | 2014-2017 | |
| Medical License | Taiwan | 2010-Present |
