Concierge Functional Medicine Services:
Personalized Treatments & Advanced Diagnostics
At Advance Health Integrative & Functional Medicine, Dr. Rashel Tahzib combines over 25 years of clinical expertise with comprehensive medical evaluations and advanced diagnostic testing to develop individualized treatment plans.
As a board-certified physician and Certified Functional Medicine Physician, Dr. Tahzib provides personalized, physician-led care for patients seeking answers to complex, chronic, or unresolved health concerns. Her integrative approach considers the complex and overlooked relationships between environment, genetics, gastrointestinal, hormonal, metabolic, immune, and physiological systems to identify potential underlying contributors to illness.
Serving patients in Los Angeles and Denver, Dr. Tahzib offers concierge functional medicine services focused on improving health, restoring physiological balance, and supporting long-term health span and vitality.
Advanced Diagnostic & Biomarker Testing
Advanced diagnostic testing is only as valuable as the expertise guiding it. With over 25 years of clinical experience, Dr. Rashel Tahzib carefully selects clinically relevant tests and reliable laboratories based on each patient’s unique medical history and health concerns. Her expertise in interpreting results helps identify underlying contributors to illness and guide precise, personalized treatment decisions.
Comprehensive Thyroid, Hormone & Metabolite Testing
Advanced Cardiovascular & Metabolic Risk Assessment
Gastrointestinal, Microbiome & Comprehensive Stool Analysis
Mold, Mycotoxin & CIRS Evaluation
SIBO Breath Testing
Nutritional, Micronutrient & Organic Acid Testing
Genetic & SNP Analysis, When Clinically Relevant
Environmental Exposure & Heavy Metal Assessment
Adrenal Function & Cortisol Rhythm Evaluation
Inflammation, Oxidative Stress & Fatty Acid Profiles
Selected Infectious Disease & Immune System Testing
Understanding your health requires looking beyond symptoms and routine laboratory results. Hormone imbalances may contribute to fatigue, weight changes, sleep disturbances, and other health concerns. Environmental exposures, including certain toxins and heavy metals, may also warrant evaluation when supported by your medical history and symptoms.
Nutrient deficiencies, impaired digestion, and gastrointestinal imbalances can further affect metabolism, energy, and overall well-being. Through carefully selected advanced diagnostics, Dr. Rashel Tahzib investigates clinically relevant contributors to your health concerns and develops individualized treatment strategies.
Discover how our Integrative Medicine approach connects comprehensive evaluation with personalized care with state if the art root cause medicine to help reverse disease, optimize health, and increase health span.
Advanced & Personalized Medical Treatments
Lasting health requires more than temporary symptom relief or one-size-fits-all treatments. Dr. Rashel Tahzib combines over 25 years of clinical expertise with advanced diagnostic findings to develop personalized treatment strategies that address underlying contributors to complex and chronic health concerns.
Her comprehensive approach integrates contemporary conventional medicine, Functional Medicine, and evidence-informed therapies, with careful attention to safety, clinical effectiveness, and each patient’s unique physiology. Rather than recommending treatments simply because they are popular or new, Dr. Tahzib focuses on what is medically appropriate and meaningful for your long-term health.
Personalized Treatment Services May Include
Comprehensive Functional & Integrative Medicine Care
Autoimmune Disease Evaluation & Management
Bioidentical Hormone Replacement Therapy (BHRT)
Thyroid & Hashimoto’s Disease Optimization
Menopause, Perimenopause & Hormonal Health
Testosterone Replacement & Men’s Hormonal Health
Fertility & Reproductive Health Optimization
Gastrointestinal Health, SIBO & Microbiome Support
Mold-Related Illness, Mycotoxin Exposure & CIRS Evaluation
Metabolic Health, Weight Management & Body Composition
Nutritional Optimization & Medically Indicated Injectable Therapies
Heavy Metal Exposure Evaluation & Medically Indicated Chelation
Peptide Therapies, When Clinically Appropriate
Growth Hormone Deficiency Evaluation & Replacement Therapy
Longevity Medicine & Healthy Aging
Exercise Performance & Endurance Optimization
Medical Conditions We Evaluate & Treat Include:
- Acne & Rosacea
- ADHD
- Adrenal Fatigue
- Adult Growth Hormone Deficiency
- Allergies & Hives
- Anxiety & Depression
- Arthritis/Joint Pains
- Asthma
- Autoimmune Disease
- Chronic Fatigue Syndrome
- Chronic Sinusitis
- Chronic Yeast Infections
- Dermatitis/Eczema
- Digestive Problems
- GERD/Esophagitis
- Fibromyalgia
- Hair Loss
- Hashimoto’s Thyroiditis
- Heavy Metal Toxicity
- Hormone Imbalance
- Hypertension
- Hypothyroidism
- Infertility
- Inflammatory Bowel Disease
- Insomnia
- Interstitial Cystitis
- Insulin Resistance
- Irregular Periods/Heavy
- Irritable Bowel Syndrome
- Leaky Gut Syndrome
- Low Testosterone
- Memory Problems
- Menopause
- Migraines Headaches
- Osteoporosis
- Overweight/Obesity
- Parkinson’s Disease
- Polycystic Ovarian Syndrome
- Restless Leg Syndrome
- SIBO
- Ulcerative Colitis
The Distinction of Physician Led Root Cause and Functional Medicine With Dr Rashel Tahzib
Connecting the Dots. Uncovering Root Causes. Finding Answers.
Many patients seek Dr. Rashel Tahzib’s expertise after years of unresolved symptoms, multiple specialist consultations, and treatments that have provided little lasting relief. Their journeys may have involved considerable physical, emotional, and financial burdens, yet important questions remain unanswered.
With over 25 years of clinical experience, board certification in Family Medicine, and advanced certification in Functional Medicine, Dr. Tahzib brings a distinctive ability to connect the dots between medical history, symptoms, diagnostic findings, and the complex interactions among the body’s systems. Her clinical insight helps uncover overlooked contributors to illness and translate those findings into precise, individualized treatment strategies.
Rather than simply treating isolated symptoms or adding another medication, Dr. Tahzib evaluates the broader clinical picture, including hormonal, metabolic, immune, gastrointestinal, nutritional, and environmental factors. Existing treatments are carefully reviewed, with adjustments considered when medically appropriate.
The distinction is direct access to Dr. Tahzib’s medical expertise throughout your care. Patients are not passed between multiple providers or delegated to nonphysician clinicians. To preserve this level of personalized attention, Dr. Tahzib accepts a select number of patients whose health needs align with her expertise and practice availability.
Explore our Patient Testimonials & Success Stories to learn more about patients’ experiences.
