MD, MSc, ABIM — Endocrinology Specialist
I am pleased to be part of the Doctors On Site team as a Specialist in Endocrinology, Diabetes, Internal Medicine, and Weight Management. I am currently seeing patients through our virtual platform and am accepting referrals for comprehensive endocrinology and obesity medicine care.
All of our OHIP-covered programs involve both physicians and a supporting care team, including allied health professionals, to provide comprehensive, patient-centered care. My goal is to deliver evidence-based, timely, and practical specialty care while maintaining clear communication with referring providers.
Conditions and concerns Dr. Umar assesses and manages:
All consultations delivered virtually across Ontario. In-person procedures arranged as clinically indicated.
T1D, T2D, gestational, CGM & pump support
Hyper/hypothyroidism, nodules, autoimmune thyroid
Medical obesity care, GLP-1, lifestyle programs
Pituitary, adrenal, gonadal, parathyroid disorders
Virtual endocrinology consultations available across Ontario — typically within ~1 week. Self-refer or ask your family doctor to send a referral.
Dr. Rehan Umar is dedicated to providing comprehensive and patient-centered care within the field of endocrinology. His approach emphasizes evidence-based practices, clear communication, and a collaborative relationship with both patients and referring physicians. By leveraging virtual consultations, he aims to make specialized endocrinology care accessible to individuals across Ontario.
His practice focuses on a holistic view of endocrine health, integrating medical expertise with lifestyle recommendations. This includes utilizing the latest advancements in diabetes technology and weight management strategies, ensuring patients receive the most effective and up-to-date treatment plans tailored to their unique needs.
Dr. Rehan Umar offers a full spectrum of endocrinology services through virtual consultations, making specialized care convenient and accessible for patients throughout Ontario. This modality allows for timely access to expert advice and management for a variety of endocrine conditions, eliminating geographical barriers.
These virtual services cover critical areas such as Type 1 and Type 2 diabetes management, including the use of continuous glucose monitoring (CGM) and insulin pumps. Additionally, he addresses thyroid disorders, obesity and weight management, and a range of other hormonal and metabolic conditions, all from the comfort of the patient's home.
Dr. Rehan Umar provides specialized medical weight management programs designed to help individuals achieve and maintain a healthy weight. Recognizing obesity as a complex chronic condition, his approach integrates medical interventions, lifestyle modifications, and ongoing support to ensure sustainable results.
These programs often involve the use of evidence-based medications, such as GLP-1 receptor agonists, alongside personalized dietary and exercise plans. Dr. Umar works closely with patients to identify underlying causes of weight gain and develop a tailored strategy that addresses their specific health goals and challenges.
Physicians seeking to refer patients to Dr. Rehan Umar for specialized endocrinology care can utilize a streamlined and secure referral process. The Doctors On Site platform facilitates easy submission of referrals, ensuring that referring providers receive timely updates and clear communication regarding their patients' progress.
The referral system is designed for efficiency, allowing for secure eReferrals or fax submissions. This ensures that patient information is handled with the utmost confidentiality and that Dr. Umar receives all necessary details to provide optimal care, fostering a collaborative approach to patient management across Ontario.