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UChicago Faculty Physicians

Isabel Casimiro, MD, PhD

Clinical Instructor of Medicine

Isabel Casimiro, MD, PhD, is a highly skilled endocrinologist who diagnoses and manages a wide range of endocrine conditions. Dr. Casimiro delivers comprehensive care for patients with Type 1 diabetes, Type 2 diabetes, lipid disorders (such as dyslipidemia, hyperlipidemia and hypercholesterolemia), transgender medicine, cardiovascular endocrinology and more.

As a physician-scientist, Dr. Casimiro is committed to using research to improve the lives of her endocrine patients. Currently, she is exploring how macrophage (a type of white blood cell) activation can cause inflammation that can ultimately result in metabolic disease. By investigating the 12/15-lipoxygenase enzyme in macrophages, Dr. Casimiro is working to understand how this pathway contributes to obesity and insulin resistance so she can offer better treatment options. Dr. Casimiro’s research has been published in several highly respected, peer-reviewed journals, including Obesity Science and Practice, Atherosclerosis and Physiological Reports.

Dr. Casimiro also has extensive experience providing gender affirming hormone therapy and improving education regarding transgender medicine for endocrinology fellows. Her work with transgender patients has been published in the Journal of the Endocrine Society and Transgender Health.

Board Certifications

  • Internal Medicine

Languages Spoken

  • English
  • Spanish

Medical Education

  • University of Washington School of Medicine


  • University of Chicago Medicine


  • University of Chicago Medicine


  • University of Chicago Medicine

Other Grad Education

  • PhD, Albert Einstein College of Medicine; MS, San Francisco State University

News & Research

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  • Aetna HMO (specialists only)
  • Aetna POS
  • Aetna PPO
  • BCBS Blue Precision HMO (specialists only)
  • BCBS HMO (HMOI) (specialists only)
  • Cigna HMO
  • Cigna POS
  • Cigna PPO
  • CountyCare *see insurance page
  • Aetna Better Health *see insurance page
  • Medicare
  • Multiplan PPO
  • United Choice Plus POS/PPO
  • United Options (PPO)
  • United Select (HMO & EPO) (specialists only)
  • United W500 Emergent Wrap
  • Aetna Medicare Advantage HMO & PPO
  • BCBS Medicare Advantage HMO & PPO
  • Humana Medicare Advantage Choice PPO
  • Humana Medicare Advantage Gold Choice PFFS
  • Humana Medicare Advantage Gold Plus HMO
  • United Choice HMO (specialists only)
  • University of Chicago Health Plan (UCHP)

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