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A board-certified physician delivering a structured, data-driven approach to root-cause care and long-term health optimization.
Dr Singh, MD (Simranjit Singh), is a board-certified physician in Internal Medicine and Obesity Medicine, with advanced training in Functional Medicine and precision-based care.
He completed his Internal Medicine training at the University of Illinois and previously served as a hospitalist and faculty physician at Indiana University Health Methodist Hospital. During this time, he managed complex medical cases, led multidisciplinary teams, and contributed to system-level improvements in patient care and clinical efficiency.
Dr Singh has authored more than 30 peer-reviewed scientific publications, contributed to multiple book chapters, and co-authored internationally recognized American College of Radiology Appropriateness Criteria guidelines used by physicians worldwide. His work reflects a strong foundation in evidence-based medicine and systems-level thinking.
To learn more about Dr. Singh’s academic work and publications, visit his Google Scholar and ResearchGate profiles.
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Through his work at The Functional MDs, Dr Singh focuses on delivering a more comprehensive and personalized model of care.
His approach is built on identifying root causes, using advanced diagnostics, and creating structured, individualized strategies based on each patient’s physiology. Rather than relying on generalized recommendations, care is designed to provide clarity, direction, and measurable progress over time.
This model is ideal for individuals who want a higher standard of care, one that prioritizes long-term outcomes, performance, and resilience.
As part of his commitment to patient education, Dr Singh created the Ask Dr. Singh platform, a growing library of physician-led answers to common health questions.
Each response is grounded in clinical experience and scientific literature, offering clear, structured insights into complex health topics. The goal is to help individuals better understand their health and make more informed decisions.
"Your body is always speaking—symptoms are just the language. The real question is, are we listening?"
The Functional MDs offer physician-led functional medicine care through secure telehealth, delivering the same root-cause, personalized approach as in-office care.
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Hormone Optimization (Thyroid, Adrenal & HRT)
Bioidentical hormone therapy for full-spectrum balance.
Mold, Heavy Metals, and Environmental Toxins
Treat hidden toxic exposures like mold and heavy metals.
Cardiometabolic Health & Cholesterol Optimization
Support heart, blood sugar, and cholesterol health.
The Functional MDs
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