A higher standard of medicine—designed for those who want answers, precision, and lasting results.
At Advance Health Integrative And Functional Medicine, Dr Rashel Tahzib expert functional medicine doctor in Los Angeles care brings you root causes integrative care that is not rushed, delegated, or fragmented. You work directly with Dr. Rashel Tahzib, a board-certified physician with decades of experience and advanced expertise in functional, integrative, anti-aging, and regenerative medicine.
This is a concierge, physician-led model built to identify root causes, restore function, and optimize long-term health across every system of the body.
Health is not created through isolated treatments or temporary fixes.
It is the result of how your systems function together—hormonal, metabolic, immune, gastrointestinal, neurologic, and environmental.
True transformation requires a physician who can synthesize complexity, recognize patterns, and guide care with depth and precision.
With advanced training across multiple disciplines, Dr. Rashel evaluates:
Instead of chasing symptoms, we identify why they are happening—and address the underlying drivers in a coordinated, strategic way.
We do not treat isolated diagnoses. We treat the interconnected human system.
Every plan is built around how your systems interact—not in isolation, but as part of a dynamic whole.
Care is designed to move beyond symptom management toward:
Your care may include:
A structured, high-touch process designed for clarity, depth, and results.
Your care begins with an in-depth consultation directly with Dr. Rashel.
This is a detailed clinical assessment—not a brief visit—designed to fully understand your history, physiology, and goals.
Testing is selective and purposeful, designed to uncover root drivers—not generate unnecessary data.
A tailored plan is developed to address your unique physiology using a combination of medical, nutritional, and advanced therapeutic approaches.
Your care evolves as your body responds—with continuous physician oversight and refinement.
This model is intentionally designed to deliver a level of care that cannot be achieved through isolated visits.
A deep clinical foundation that includes:
Provides:
Enrollment offers access to full-spectrum, physician-led functional medicine care, including:
Your care is guided by one physician who understands your full case
Time and expertise are allocated to uncover what others may miss.
Your plan evolves based on data and response—not guesswork.
You receive an expert level of physician care and involvement not available in traditional models and not offered in most practices advertising functional medicine where you see a physician maybe once and rest of care is delivered by nurses and assistant, or in many you never see a physician at all, which can be misleading because you read the words functional medicine expecting a high level of physician expert care.
We offer that high level of care you deserve.
Care is often time-limited and focused on managing symptoms rather than understanding why they are occurring.
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While often well-intentioned, care may lack the clinical depth and medical integration required for complex conditions.
A comprehensive, physician-directed approach designed to uncover root causes, restore function, and optimize long-term health.
| Feature | Conventional Medicine | Non-Physician “Functional Medicine” | Dr. Rashel Tahzib (Physician-Led Model) |
|---|---|---|---|
| Provider | Physician (often time-limited) | Often non-physician (varied training) | Board-certified physician |
| Visit Time | Short, symptom-focused | Variable, often protocol-based | In-depth, individualized |
| Approach | Reactive, diagnosis-based | Trend-based or supplement-focused | Root-cause, systems-based |
| Personalization | Limited | Variable | Highly personalized, physician-designed |
| Continuity | Fragmented across providers | Often inconsistent | Continuous, physician-guided |
| Clinical Depth | Narrow specialty focus | Limited medical integration | Multi-system, integrative expertise |
| Hormone Management | Often limited or avoided | Variable training | Advanced bioidentical hormone expertise |
| Complex Case Handling | Often referred out | May lack medical depth | Managed comprehensively |
| Goal | Symptom control | General wellness | Restoration, optimization, longevity |
| Oversight | Episodic | Variable | Continuous, strategic |
This model is designed for individuals who want a higher level of care
This is not volume-based care. It is precision, physician-led medicine designed for results.
You work directly with Dr. Rashel
Every plan is tailored to your biology and goals
All systems are evaluated and integrated.
The goal is meaningful, lasting improvement—not temporary change.
If you are ready for a more advanced, strategic, and personalized approach to your health, we invite you to take the next step
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*Note that with this kind of plan pharmaceutical medications can not be ordered. The focus will be on your specific history, root causes and potential imbalances as well as specific diet, lifestyle discussion. You will be given targeted specific nutrients that will address your symptoms and a prescribed personalized lifestyle plan which often produces remarkable results.
Health Is Your Birth Right: How to Protect, Optimize And Restore Your Health. A Guide To The Basics Of Functional Medicine
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