John Billimek

picture of John  Billimek

Associate Professor and Vice Chair for Academic Affairs, Family Medicine
School of Medicine

Co-Director, Program in Medical Education for the Latino Community (PRIME-LC) Residency Track, Family Medicine
School of Medicine

Ph.D., University of California, Irvine, 2007, Psychology and Social Behavior

Phone: (949) 824-3065
Fax: (949) 824-3388

University of California, Irvine
100 Theory, Suite 110
Mail Code: 5800
Irvine, CA 92697
Research Interests
medication adherence, diabetes, health disparities, social determinants of health, doctor-patient communication, life context and chronic disease management
Academic Distinctions
2016 School of Medicine Excellence in Graduate Teaching Award

2015 Charles E. Gibbs Leadership Prize for Best Manuscript of 2015, Honorable Mention, Jacob’s Institute for Women’s Health

2014 Outstanding Performance Award, Peruvian American Medical Society Ayacucho Mission

2013 Chancellor’s Award in Clinical and Translational Science for Outstanding Community Research Investigator, University of California, Irvine

National Institutes of Health (NIH) Health Disparities Loan Repayment Program (LRP) Award, National Institute on Minority Health and Health Disparities (NIMHD)
Research Abstract
Results from a recent randomized trial suggest that expansion of health insurance coverage alone may not improve health outcomes for low income patients if care is not delivered in a way that is responsive to their needs. My research aims to understand why wide racial and socioeconomic disparities in health outcomes exist among patients with chronic diseases for which there are accepted guidelines for prevention and treatment, even among individuals who can access affordable health care.

My work addresses two overarching research questions: What are the barriers, in terms of social determinants of health, cultural preferences, and patient characteristics, that prevent underserved patients from realizing the full benefit of effective medical therapies? And, can healthcare be delivered in a way that is more responsive to these barriers?
Jimenez K, Vargas C, Garcia K, Guzman H, Angulo MA, Billimek J. Evaluating the validity and reliability of the Beliefs About Medicines Questionnaire in low-Income, Spanish-speaking patients with diabetes in the United States. Diabetes Educator. In Press.
Billimek J, Sorkin DH. Self-reported Neighborhood Safety and Nonadherence to Treatment Regimens Among Patients with Type 2 Diabetes. J Gen Intern Med. 2011.
August KJ, Billimek J. A Theoretical Model of How Neighborhood Factors Contribute to Medication Nonadherence Among Disadvantaged Chronically-Ill Adults. Journal of Health Psychology. 2015.
Ngo-Metzger Q, Sorkin DH, Billimek J, Kaplan SH, Greenfield S. The Effects of Financial Pressures on
Adherence and Glucose Control among Racial/Ethnically Diverse Patients with Diabetes. J Gen Intern Med. 2011.
Billimek J, Guzman H, Angulo MA. Effectiveness and feasibility of a software tool to help patients communicate with doctors about problems they face with their medication regimen (EMPATHy): study protocol for a randomized controlled trial. Trials. 2015, 16(1):145.
Sorkin DH, Ngo-Metzger Q, Billimek J, August KJ, Greenfield S, Kaplan SH. Under-Identified and Under-Treated Depression Among Racially/Ethnically Diverse Patients With Type 2 Diabetes. Diabetes Care. 2011
Billimek J, August KJ. Costs and beliefs: Understanding individual and neighborhood level correlates of medication nonadherence among Mexican Americans with type 2 diabetes. Health Psychology. 2014 Dec 33(12).
Kaplan SH, Billimek J, Sorkin D, Ngo-Metzger Q, Greenfield S. Who Can Respond to Treatment? Identifying Patient Characteristics Related to Heterogeneity of Treatment Effects. Medical Care. 2010, 48(6 Suppl):S9-16.
Billimek J, Malik S, Sorkin DH, Schmalbach P, Ngo-Metzger Q, Greenfield S, Kaplan SH. Understanding disparities in lipid management among patients with type 2 diabetes: Gender differences in medication nonadherence following treatment intensification. Women’s Health Issues. 2014. [Epub ahead of print].
Greenfield S, Billimek J, Pellegrini F, Franciosi M, De Berardis G, Nicolucci A, Kaplan SH. Comorbidity Affects the Relationship Between Glycemic Control and Cardiovascular Outcomes in Diabetes: A Cohort Study. Annals of Internal Medicine. 2009, 151: 854-860.
Rowther AA, Dykzeul B, Billimek J, Abuhassan D, Anderson C, Lotfipour S. Computer-Assisted Diabetes Risk Assessment and Education (CADRAE) for Medically Vulnerable Populations in the Middle East: a Novel and Practical Method for Prevention. Journal of Global Health Perspectives. 2015.
Lu KD, Billimek J, Bar-Yoseph R, Radom-Aizik S, Cooper DM, Anton-Culver H. Sex Differences in the Relationship between Fitness and Obesity on Risk for Asthma in Adolescents. Journal of Pediatrics. 2016.
Huntsman MA, Olivares FJ, Tran CP, Billimek J, Hui EE. Pain Reduction and Financial Incentives to Improve Glucose Monitoring Adherence in a Community Health Center. PLoS One. 2014; Dec 8;9(12):e114875.
Nguyen H, Sorkin DH, Billimek J, Kaplan SH, Greenfield S, Ngo-Metzger Q. Complementary and Alternative Medicine (CAM) Use among Non-Hispanic White, Mexican American, and Vietnamese American Patients with Type 2 Diabetes. J Health Care Poor Underserved. 2014; 25(4):1941-55.
Kaplan SH, Billimek J, Sorkin DH, Ngo-Metzger Q, Greenfield S. Reducing Racial/Ethnic Disparities in Diabetes: The Coached Care (R2D2C2) Project. J Gen Intern Med. 2013, 28(10): 1340-9.
Liss MA, Billimek J, Osann K, Cho J, Moskowitz R, Kaplan A, Szabo RJ, Kaplan SH, Greenfield S, Dash A. Consideration of Comorbidity in Risk Stratification Prior to Prostate Biopsy. Cancer. 2013, 119(13): 2413-18.
Malik S, Billimek J, Greenfield S, Sorkin DH, Ngo-Metzger Q, Kaplan SH. Patient Complexity and Risk Factor Control Among Multimorbid Patients With Type 2 Diabetes: Results From the R2D2C2 Study. Medical Care. 2013, 51(2): 180-5.
Billimek J, Sorkin DH. Food insecurity, processes of care and self-reported medication underuse in patients with type 2 diabetes: Results from the California Health Interview Survey. Health Services Research. 2012, 47(6):2159-68.
Sorkin DH, Billimek J. Dietary Behaviors of a Racially and Ethnically Diverse Sample of Overweight and Obese Californians. Health Education and Behavior. 2012, 39(6): 737-44.
Sorkin, D, Biegler, KA, Billimek J. Differences in Self-Reported Physical Activity and Body Mass Index Among Older Hispanic and Non-Hispanic White Men and Women: Findings from the 2009 California Health Interview Survey. Journal of the American Geriatrics Society. 2015, 63(10):2158-63. (PMID 26416708).
NIH/NHLBI (R01 HL142964) - Mi Propio Camino (My Own Way): Addressing negative beliefs about medication among Hispanic adults with hypertension
UCI CRAFT COVID Program - The COVID-19 Unity Project: Community voices in the pandemic
Research Centers
Health Policy Research Institute
the HELIOS Lab
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