Dr Rashel-Advance Health Integrative And Functional Medicine

 *****  ” Dr. Rashel Tahzib is most knowledgeable doctor who pays attention and cares. That is the most I can expect from a doctor. She helped me with my autoimmune disease that I was suffering for many years and helped my wife with her hormone deficiency . we are so grateful to her.”-Vicky S.M


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Step 2. Receive Free Phone Call To Discuss

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Step 4. Follow Up Result Analysis & Treatment Plan

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Step 5. Follow Up Support & Optimize

Los Angeles Functional Medicine Specialist Denver Functional Medicine Specialist

Dr. Rashel Tahzib is and a Functional Medicine specialist, one of the few physicians who are actually certified to practice Functional Medicine by The Institute for Functional Medicine certified practitioner list and a board-certified and re-certified Family Medicine Physician with over 20 years of medical clinical experience. her evidence-based scientific approach and knowledge of Functional Medicine, combined with her personal experience with the health and disease process leads to the evolutionary personalized medicine she offers that works remarkably with her patients. 

Dr Rashel Tahzib treats her patients holistically using the best medicine available integrating all safe and effective methods for optimal health outcomes. She takes the necessary time time to investigate and identify root causes of your health conditions and with her unique expertise and altruism and compassion customizes Integrative personalized treatment plans with unsurpassed results that have changed the lives of thousands of patients for the better. 

Patients at Advance Health Integrative And Functional Medicine enjoy the best of what contemporary medicine has to offer with unsurpassed concierge level personalized care and attention thorough, and cutting edge Functional Medicine for their health concerns. 

Dr Rashel has walked in the footsteps of many of her patients with her own health challenges earlier in life that she successfully reversed and it is her purpose to bring you the same healing. You do not have to settle for anything less than feeling your best because health and wellness are your birth right. 

Your symptoms such as fatigue, bloating, digestive problems, brain fog, weight gain are your body’s way of telling you to pay deeper attention and not settle for being told everything is normal when the tests done were barely superficial at best.  Dr Rashel utilizing her expertise and the best of Integrative and Functional Medicine will put the power of your health back in your hands, were it belongs. 

Autoimmune Disease Reversal

Autoimmune diseases are a family of more than 80 chronic, often debilitating and, in some cases, life-threatening named illnesses.


Bio-Identical Hormone Replacement Therapy

Bio-identical hormones are hormones that share the exact same molecular structure as hormones found in our bodies. By contrast ...


Women’s Health, Hormone Balance

Today more than ever more and more women suffer from hormone imbalance. Some of the symptoms of hormone ...


Insulin Resistance/Abdominal Obesity

Abdominal obesity is a an epidemic in and of itself and part of the obesity epidemic effecting about half of the adult population ...


Detoxification/Heavy Metals/Environmental Toxins

Toxins are culprits that are among the root cause of many diseases. In our modern world and especially here in the US, we are bathed ...


Digestive Health Restoration

The digestive system is literally the gateway to health and disease, everything that gets absorbed and excreted moves through ...


Candida and SIBO Elimination

If you have experienced or suffered from gastrointestinal symptoms, especially bloating, constipation, gas, stomach pain ...


Thyroid Health Optimization

Thyroid health and specifically hypothyroidism is one of the most heated areas of debate and controversy in medicine.


Low Testosterone & Men’s Health

Most of us want to feel vital, strong, confident, secure, and want to be healthy, lean, fertile, with strong bones, strong muscles, great ...


Sleep Issues

Sleep is one of the most important if not the most significant both short and long-term factor directly affecting your health and ...


Anxiety, Depression, Difficulty Concentrating

Psychiatric difficulties and concentration problems are exceedingly common in the US today with anxiety disorders being the most ...


Lyme Disease/ Chronic Infections

Chronic infections like Lyme, CMV, Herpes, Epstein Barr can be culprits in symptoms like chronic fatigue, and fibromyalgia and cause ...


Chronic Fatigue/Fibromyalgia

If you or a loved one is suffering from fatigue and or chronic pain and have seen your conventional doctor, you may have ....


Functional Medical Weight Loss

With obesity being an epidemic in the US today and affecting just under half the adult population, and affects about 20% of us ...


Fertility Optimization

Infertility and trouble conceiving is becoming more and more prevalent in the US, about 6.1 million women in reproductive years have ...


Get Answers and Start Feeling Better! You can work with Dr Rashel in the following ways:

You can start feeling your best, get answers to your health challenges, get on the right path to optimal health and vitality by working with Dr Rashel in 5 different ways right away:


Schedule a Functional Medicine Consultation

Schedule Functional Medicine Consultations with Dr. Rashel available in Colorado and California.


Schedule a Functional Wellness Consultation

Schedule your Functional Wellness Consultation from anywhere today! Available in Colorado and California. 


Begin Health Restore Detox Program

Start Feeling Better Now!


Begin Health Restore Candida Clear Program

Clarify, Replenish, and Repair


Dr. Rashel’s formulated Health Restore Kits

Improve your health now with Dr Rashel’s formulated Health Restore Kits

Take you Free Online Health Assessment Now

Dr. Rashel offers a mobile and virtual practice operating in the Greater Los Angeles and Denver area. This allows greater access and flexibility to patients while maintaining the high level of personalized medicine that works with you. Dr. Rashel operates a fee for service cash based practice model that does not accept private insurance or medicare for services. All services whether in-state, telemedicine, or other are billed on a cash for service basis. No Insurance billing or insurance payment is accepted for any or all services rendered.

Latest Testimonials

"Dr Rashel is so wonderful. Best Doctor if you have thyroid or hormone problems. My Wife and I both work with Dr Rashel and she is so caring and spends so much time attention we feel like family."
Los Angeles
"Dr Rashel helped me and my wife with fertility and helped us have our healthy beautiful baby girl. My wife had seen many doctors and done cycle after cycle of failed IVF."
Los Angeles
"Thank you Dr Rashel for everything you have done for me I can never than you enough. I found Dr Rashel after having gone to more than a dozen doctors and finding myself more and more disappointed ..."
Los Angeles


"I want to live the best life at the highest capacity ... I am feeling the best I ever have!"


"I honestly feel a lot better ... I have a lot more energy, I sleep better, I am losing weight"


"I am now running 5k, 30lbs lighter, more active, look younger & feeling very fortunate to have found her."


"You name it, I had it. Rashel was there the whole time, finding out what was really wrong with me."