A leader in diabetes innovation, education and research to improve patient care
At Park Nicollet International Diabetes Center, our mission is to ensure that every person with diabetes or at risk for diabetes receives the best possible care. We are known throughout the world for our experience and expertise in patient education, professional training, research, and models for patient-centered care and quality improvement. Our focus is on translating new research findings into clinical practice and discovering innovative ways to use technology to improve diabetes care.
International Diabetes Center (IDC) believes in a patient-centered, team approach to diabetes care. We focus on the relationship between the patient, provider and educator to ensure that each receives the information and tools they need to improve patient health.
Founded by Donnell D. Etzwiler, MD, in 1967, IDC continues to provide world-class diabetes care, education, publications and research that meet the needs of people with diabetes and their families. We continue to shape the community – and the world – to help people live well with diabetes.
IDC staff includes over 80 health care professionals involved in research and education, and who collaborate with other areas within Park Nicollet to ensure patients receive the best possible diabetes care.
For diabetes patient appointments and endocrinology information, please contact your Park Nicollet primary care doctor or the Endocrinology Department, or visit their pages on the Park Nicollet Web site.
Learn more about IDC by downloading our overview brochure (PDF).
Richard M. Bergenstal, MD
Executive Director, International Diabetes Center
Dr. Richard Bergenstal works with patients in research studies related to type 1 and type 2 diabetes and new diabetes technology. He is also involved in training health professionals in the U.S. and internationally and publishing educational materials for patients and professionals. His clinical work focuses on optimizing patient-centered team care and the appropriate use of glucose monitoring and insulin therapy.
Phone: (952) 993-1913
Joan Bissen, RD
Executive Director, Park Nicollet Institute
Joan Bissen oversees International Diabetes Center in her role as Executive Director of Park Nicollet Institute. Bissen leads innovations in clinical research, patient education and continuing medical education. Prior to this role, Bissen directed Park Nicollet Institute’s Office of Continuing Medical Education. Park Nicollet Institute is a division of Park Nicollet Health Services.
Phone: (952) 993-3702
Janet Davidson, BSN, RN, CDE
Director of Patient Services
Janet Davidson directs diabetes education services at Park Nicollet clinic sites, inpatient at Park Nicollet Methodist Hospital, behavioral health, and Melrose Institute Eating Disorders and Diabetes programs. She also serves on the Park Nicollet Inpatient Diabetes Operation Team and is a content expert and author for diabetes education publications.
Phone: (952) 993-1971
Mary L. Johnson, BS, RN, CDE
Director of Clinical Research
Mary Johnson directs the testing of new diabetes medications, devices, nutrition research and best care practices at International Diabetes Center. She has developed research protocols and has served as project director on numerous research trials. She has also co-authored articles and abstracts in the specialty areas of hypertension, cardiology, nephrology and diabetes. Johnson is a member of the National Institutes of Health (NIH) EDIC/DCCT and GRADE study groups and previously served on the ACCORD/ACCORDIAN study. She has had industry experience as a clinical research monitor, assuring accuracy of data reported to sponsoring companies and adherence to FDA regulations.
Phone: (952) 993-1966
Gregg D. Simonson, PhD
Director of Professional Training and Consulting
Gregg Simonson leads the team that provides diabetes training and education to more than 1,000 health professionals and industry representatives each year. He also directs the diabetes consulting services that International Diabetes Center provides for healthcare systems that are looking to improve diabetes care and education for their patients.
Phone: (952) 993-3830