


The Functional MDs in Carmel, Indiana, delivers precision functional medicine with board-certified expertise in Internal Medicine, Obesity Medicine, and advanced certifications in Functional Medicine, Hormone Optimization, and Peptide Therapeutics. The practice addresses complex chronic conditions by identifying root physiological imbalances rather than masking symptoms, serving patients throughout Indiana and beyond through comprehensive telehealth consultations. Providers integrate diagnostic testing with therapeutic peptides, hormone optimization, and targeted lifestyle interventions to restore metabolic function, cognitive performance, and systemic resilience in patients experiencing chronic fatigue, autoimmune dysregulation, cardiometabolic dysfunction, and age-related decline.
The Functional MDs offers a range of peptide therapy options tailored to individual patient needs. Treatment protocols are customized based on health goals, lab work, and medical history, with options for hormone optimization, metabolic health, tissue repair, and performance enhancement.
The medical team holds board certification in Internal Medicine and Obesity Medicine, providing a foundation in disease pathology and metabolic regulation that informs every treatment decision. Advanced training in Functional Medicine enables providers to interpret complex lab panels including comprehensive hormone assays, inflammatory markers, nutrient deficiencies, gut microbiome analysis, and metabolic function tests. Certification in Advanced Hormone Optimization guides bioidentical hormone replacement protocols for thyroid, adrenal, and sex hormone imbalances. Training in Advanced Peptide Therapeutics ensures evidence-based peptide selection, dosing precision, and monitoring for safety and efficacy. This combination of credentials allows The Functional MDs to manage patients with layered conditions—such as hypothyroidism with chronic fatigue, autoimmune thyroiditis with gut permeability, or insulin resistance with cognitive decline—through integrated treatment plans that address multiple systems simultaneously.
Patients begin with an in-depth telehealth consultation that reviews medical history, current symptoms, prior treatments, and health goals. Providers order targeted laboratory testing to assess hormonal status, metabolic markers, nutrient levels, inflammatory cytokines, and other biomarkers relevant to the patient's presentation. Follow-up consultations review results in detail, explaining the physiological mechanisms behind symptoms and how proposed interventions—peptides, hormone therapies, nutritional protocols, or lifestyle modifications—will address identified imbalances. Treatment plans are tailored to individual lab findings and symptom severity, with ongoing monitoring through follow-up labs and telehealth check-ins to adjust dosing, add supportive therapies, or modify protocols based on patient response. The practice emphasizes patient education, providing clear explanations of how each intervention works and what outcomes to expect over weeks and months of treatment.
Operating exclusively via telehealth, The Functional MDs extends access to patients across Indiana and other states where providers hold licensure, eliminating geographic barriers for individuals in rural areas or those with mobility limitations due to chronic illness. Prescriptions for peptides and medications are sent to specialized compounding pharmacies or retail pharmacies depending on the compound, with clear instructions for reconstitution, dosing, and administration. The clinic's approach combines the convenience of virtual care with the rigor of board-certified medical oversight, offering a practical solution for patients seeking functional medicine expertise without the need for in-person visits. With a 5.0-star rating across 32 Google reviews reflecting patient experiences with root-cause investigation, personalized protocols, and improvements in fatigue and hormonal balance, The Functional MDs provides a structured, evidence-informed pathway for patients pursuing metabolic optimization, longevity, and resolution of chronic health challenges in Carmel and throughout the state.
· Double Board-Certified MD
Dr. Simranjit Singh, MD, FACP, DABOM, FMACP, IFM-CP
Founder & CEO
Dr. Simranjit Singh is a board-certified physician in Internal Medicine and Obesity Medicine, with advanced training in Functional Medicine. He focuses on delivering personalized, root-cause care grounded in evidence-based medicine.
Dr. Sanna Singh, MD, DABOM, FMACP
Physician
Dr. Sanna Singh is a double board-certified physician with over 13 years of clinical experience and advanced training in functional and integrative medicine, focusing on hormone health and metabolic conditions.
Megan McCarthy, FMACC
Office Manager & Certified Functional Medicine Health Coach
Megan is a certified Functional Medicine Health Coach with a passion for helping patients uncover their body's healing capabilities through personalized strategies.
Laura Graefnitz
Certified Functional Medicine Health Coach
Laura is a board certified Functional Medicine Health Coach with experience supporting patients facing complex and chronic health concerns.
Chiante Benning
Phlebotomist
Chiante Benning is an experienced healthcare professional with 24 years of dedicated service in the medical field, specializing in phlebotomy.
Par Reehal, FMACC, IHP
Certified Functional Medicine & Integrative Health Coach
Par Reehal brings over 25 years of experience in the pharmacy and healthcare industry, integrating conventional healthcare expertise with a root-cause, personalized approach to wellness.
Topics Mentioned in Reviews
Hormone Optimization Therapy
Bioidentical hormone therapy for full-spectrum balance.
Peptide Therapy
Unmatched expertise for the safest and most effective use of peptides, unlocking their full potential for your health.
Functional Fertility & Reproductive Health
Root-cause fertility care for women and men.
Chronic Fatigue & Fibromyalgia
Uncover drivers of fatigue and chronic pain.
Gut Health & Food Sensitivities
Heal the gut and uncover reactive foods.
Cardiometabolic Health & Cholesterol Optimization
Support heart, blood sugar, and cholesterol health.
Longevity & Healthy Aging
Slow biological aging and support cellular vitality.
Mood & Cognitive Health
Functional approach to anxiety, brain fog, memory, and mood imbalance.
Body Recomposition & Muscle Health
Build muscle and improve body composition.
Mast Cell Activation Syndrome (MCAS)
Support for complex histamine-related symptoms through systems-based, physician-guided care.
Post-Viral & Long COVID Recovery
Rebuild energy, clarity, and immune resilience—one system at a time.
MyPeptideMatch.com is an independent directory. We do not provide medical advice. Always consult a qualified healthcare provider before starting any peptide therapy.


