Rochester, Minnesota


McCoy.Rozalina@mayo.edu Clinical Profile


Rozalina G. McCoy, M.D., M.S., is an endocrinologist, primary care physician and National Institutes of Health (NIH)-funded health services researcher. Her interests lie in understanding, individualizing and improving the care for people with diabetes, particularly in the context of multimorbidity. Dr. McCoy's research relies on using real-world data and advanced computational methods to identify optimal diabetes management strategies and care delivery methods, with the ultimate goal of developing and facilitating patient-centered, evidence-based, timely and equitable approaches to care.

Dr. McCoy also researches ways to deliver and evaluate chronic disease care, particularly in the context of different regulatory pathways and payment models. In this context, she is interested in quality measure development, patient attribution methodologies, quality improvement and practice optimization. Funded by AARP and OptumLabs, Dr. McCoy has worked on developing a patient-centered metric of appropriate diabetes management, and has served on technical expert panels for quality measure development for the Centers for Medicare & Medicaid Services (CMS). She has also worked with the Minnesota Department of Health on a number of projects pertaining to diabetes and other chronic diseases.

Dr. McCoy's recent work has focused on the epidemiology of hypoglycemia, including patient-reported hypoglycemia, and the evaluation of a broad range of patient- and treatment-related risk factors for hypoglycemia. Dr. McCoy has also examined the pharmacoepidemiology and comparative effectiveness and safety of pharmaceuticals used in the management of common chronic health conditions, including diabetes, subclinical hypothyroidism, lupus and others.

Focus areas

  • Identifying the contributors to and impact of severe hypoglycemia and hyperglycemia among people with diabetes
  • Identifying optimal pharmacologic and systems approaches to managing diabetes and other chronic health conditions, focusing on aligning treatment regimens and therapeutic targets with patients' goals, preferences, clinical and psychosocial contexts, and overall capacity
  • Developing accurate and reliable quality measures that promote high-value, patient-centered care for people with diabetes and other chronic health conditions
  • Leveraging data science, artificial intelligence, and informatics to inform and improve care

Significance to patient care

Dr. McCoy's research is inspired and informed by her patients' and her own experiences as a patient and caregiver. Her early work helped focus attention on the impact of patient-reported hypoglycemia on patients' lives, and informed the now-standard practice of routinely screening at-risk patients for hypoglycemia. Dr. McCoy's subsequent work focused on the importance of providing an appropriate level of care, simultaneously working to reduce both inadequate and excessive testing and treatment, and better aligning treatment regimens and targets with what is best for each individual patient.

Professional highlights

  • Chair, AcademyHealth Quality and Value Interest Group, 2019-present
  • Leadership team advisor, Diabetes in Primary Care Interest Group, American Diabetes Association, 2018-present
  • Vice chair, Mayo Clinic Employee and Community Health Chronic Disease & Diabetes Task Force, 2018-present
  • Member, technical expert panel, Centers for Medicare and Medicaid Services (CMS) for the Development and Reevaluation of Outpatient Outcome Measures for the Merit-based Incentive Payment System, 2017-2019
  • Kern Health Care Delivery Scholar, Mayo Clinic Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, 2015-2019


Primary Appointment

  1. Consultant, Division of Community Internal Medicine, Geriatrics and Palliative Care, Department of Internal Medicine
  2. Section Head, Division of Community Internal Medicine, Geriatrics and Palliative Care, Department of Internal Medicine
  3. Medical Director, Community Paramedic Program, Mayo Clinic Ambulance Service

Joint Appointment

  1. Consultant, Section of Geriatric Medicine and Gerontology, Department of Internal Medicine
  2. Consultant, Division of Health Care Policy & Research, Department of Quantitative Health Sciences

Academic Rank

  1. Associate Professor of Medicine


  1. Certificate - Coursera Specification in Executive Data Science The Johns Hopkins University
  2. Master of Science - Masters degree in health sciences research. Mentor: Nilay D. Shah, PhD. Dissertation title: "All-Cause and Diabetes-Specific Hospital Admissions in a National Cohort of Adults with Diabetes Mellitus" Clinical and Translational Science, Programs, Mayo Graduate School, Mayo Clinic College of Medicine
  3. Fellowship - Clinician-Investigator Training Program. Fellowship in Endocrinology. Mayo School of Graduate Medical Education, Mayo Clinic College of Medicine
  4. Residency - Clinician-Investigator Training Program. Residency in Internal Medicine Mayo School of Graduate Medical Education, Mayo Clinic College of Medicine
  5. MD Johns Hopkins University School of Medicine
  6. BA - Biochemical Sciences with Language Citation in Modern Hebrew. Summa Cum Laude. Harvard University

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