Dr. Dean Kravis

Alina Elperin is a primary care provider, practicing in Internal Medicine and Bariatric Medicine in Bannockburn, Illinois. Dr. Elperin is rated as an Advanced provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). Her top areas of expertise are Adult Still's Disease, Heart Failure with Preserved Ejection Fraction (HFpEF), Chronic Lymphocytic Leukemia (CLL), and End-Stage Renal Disease (ESRD).

Liana Billings, MD, an endocrinologist and clinical researcher at Endeavor Health, specializes in diabetes care and cardiometabolic disease. She serves as Vice Chair of Research for the Department of Medicine and directs the Clinical and Genetics Research Program in Diabetes and Cardiometabolic Disease. Dr. Billings focuses on precision medicine to better understand how genetics influence diagnosis, treatment and outcomes. Through her Precision Medicine in Diabetes Consultation Clinic, she partners with patients to personalize therapies and improve quality of life, including for those with rare forms of diabetes. Dr. Billings is rated as a Distinguished provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). Her top areas of expertise are Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Maturity Onset Diabetes of the Young, and Low Blood Sugar.

Lisa P. Purdy, MD, a specialist in endocrinology, diabetes & metabolism at Endeavor Health, manages a wide range of hormonal and metabolic conditions. She treats diabetes, thyroid disorders, adrenal and calcium imbalances and endocrine complications during pregnancy. Dr. Purdy delivers care for both common and complex endocrine concerns. Dr. Purdy is rated as a Distinguished provider by MediFind in the treatment of Nonalcoholic Steatohepatitis (NASH). Her top areas of expertise are Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Hyperparathyroidism, and Anaplastic Thyroid Cancer.