Who We Are

The Integrative Medical Group of Irvine blends the best of conventional, naturopathic, and holistic medicine, providing comprehensive, integrative healthcare for women of all ages.

Integrative Medical Group of Irvine provide a wide range of services, including physical exams and annual women’s visits, acute and chronic care, and a full spectrum of preventive and wellness care.

Because coordinated care at one site provides the best opportunity for achieving optimal health, IMGI provides:

  • Comprehensive healthcare
  • Integrative gynecology
  • Complex disease diagnosis and management
  • Advanced testing
  • Anti-aging medicine
  • Aesthetics and skincare
  • Nutrition and fitness

Additional services include naturopathy, acupuncture, massage, and IV therapy.

We believe that…

A doctor and her patient are equal partners in health. As our patient, you should fully understand and consent to all recommended treatments.
The best treatment is the most natural, least toxic treatment. Many pharmaceuticals have terrible side effects. These powerful drugs should be last resorts, not first-line treatments.
Illnesses are usually interconnected. We want you to tell us about all of your symptoms so we can treat them together.
In many cases, the body can heal itself. Your body is designed to be healthy. If you give your body what it needs, it can usually heal all on its own.
The goal of medicine is optimal health, not tolerable illness. We want you to feel amazing.
Health is an ongoing journey. As you travel through life, we will be here for you.

Dr. Felice Gersh Interview

Dr. Gersh is the medical director of IMGI and is board-certified in Integrative Medicine and OB-GYN. She is a globally-renowned expert in women’s health and complex disease management.

Why do women live longer than men? Does the ability to bear children play a role and to what extent do evolutionary forces discriminate between men and women?

In this in-depth interview Dr. Gersh explains why she “had to unlearn” about half of everything she learned at medical school calls for a fundamental “shake-up” in the delivery of health care.



Here are a few of the integrative therapies that we are proud to offer in conjunction with conventional medical therapies and pharmaceuticals.
  • IV Therapy
    IV Therapy
  • Fasting
    Fasting, inc. the ProLon Fasting Mimicking Diet
  • Hemp
    Cannabis, Hemp, and CBD
  • Nutraceuticals
  • Heartmath
  • PRP (platelet-rich plasma)
    PRP (Platelet-Rich Plasma)
  • Essential Oils
    Essential Oils
  • Breath Work
    Breath Work
  • Massage
  • Guided Imagery
    Guided Imagery
  • Nutritional Therapies
    Nutritional Therapies
  • Herbal Therapies
    Herbal Therapies

Our Services

PCOS Women’s Clinic

PCOS Women’s Clinic

We provide comprehensive healthcare to women with PCOS, from puberty through menopause and beyond, with a special focus on fertility, weight loss, and management of related health conditions such as diabetes and cardiovascular disease.
Therapeutic Toolbox

Menopausal Transitions

Every woman on this planet, barring some tragedy, will experience menopause. The term “menopause” literally means the cessation of periods. But that is a tiny fraction …

Integrative Gynecology

Integrative Gynecology

Women have unique healthcare needs. We specialize in reproductive health and the many ways that gynecological health intersects with whole body health.
Healthy Aging

Healthy Aging

As women age and pass through menopause, their health needs change. We can guide you through this process and help you maintain physical, mental, and emotional vitality for decades to come.
Fertility and Preconception-Care

Fertility and Preconception Care

Infertility can be devastating to women and their families. We have developed unique programs to help you maximize your health and fertility before you try to get pregnant.
Complex Medical Conditions

Complex Medical Conditions

We have deep expertise on the interconnection between autoimmunity, inflammation, metabolic disease, and environmental contributing factors, with a specialized focus on weaning people off complex pharmaceutical regimes.
Aesthetics and Skin Care

Aesthetics and Skin Care

It is normal to want to look as good as you feel. Many health conditions, including aging, can adversely affect skin health. We use state-of-the-art skin treatments to keep your skin healthy and beautiful.
Massage Therapy

Lifestyle Medicine

A healthy body requires a healthy lifestyle. To help you, we provide on-site nutrition counseling, fitness training, massage therapy, and IR sauna sessions.
Holistic Men’s Healthcare

Holistic Men’s Healthcare

We began seeing male patients a decade ago when many of our female patients began bringing their husbands to our practice. We offer integrative healthcare and complex disease management for our male patients.

``Our team is capable of tackling the most complex medical conditions and providing a path to whole-body wellness.``

– Integrative Medical Group of Irvine –


Dr Gersh is an AMAZING Doctor. She has extensive knowledge in many fields and is STILL always learning. I don’t know how she does it! I have been working as an independent contractor of Medical Massage in her office for over a decade.

Cherie O. – Patient

Dr. Gersh is an absolutely extraordinary doctor and human. Even though all my visits to her haven’t been for happy reasons, she absolutely has put all my worries at ease. She is extremely knowledgeable and is ready and willing to run the tests necessary to find out the root cause of any issue.

Vanessa J.

Dr. Gersh has been my primary care doctor for over twenty years. I have always found her to be interested, caring, and concerned about my health. She takes the extra time to spend with you, to find out how your life is in relation to how your health is.

Donna P.

I trust Dr. Gersh to give me a complete holistic exam and consultation. Dr. Gersh interprets the data from all the blood testing and makes adjustments to my diet and prescriptions. I am involved in two clinical trials of the Women’s Health Initiative and take my Healthy Aging seriously.

Karen S.

``We are a practice unlike any other, with exceptional skills, talents, and an amazing array of therapies to help you achieve whole-body health.``

– Dr. Felice Gersh –

Our Team

Dr. Felice Gersh - In The Press

Featured In

Nutritious Life
Dame Magazine

Latest Instagram

SUMMIT: How to Get Pregnant in 2024
Fertility Advice You Have Never Heard Before

Register for free:

I am excited to be a guest speaker for the upcoming free summit, How to Get Pregnant in 2024. Hosted by fertility expert, Saskia Roell, this summit features 22 amazing guest speakers. My interview, Natural approaches to improve PCOS fertility, is especially targeted toward my fellow PCOS women.

In this summit:
22 experts cover a wide range of fertility topics, including:
* hormones, testing, and restoring balance
* circadian rhythm and sleep
* stress
* gut health
* post-40 pregnancy

And more!

#pregnancy #fertility #infertility #PCOS #pcosfertility

Dr Gersh discusses progesterone and its deficiency states and why all women should want it and replace it when it is absent or insufficient! ...

Instagram Live TODAY!
Progesterone Deficiency
A critical issue for women taking birth control, with PCOS, and in menopause

Thurs, 2/15 at 7:30 PM Pacific Time
On Instagram @dr.felicegersh

Progesterone might be the most misunderstood and undervalued female hormone, even more so than estradiol -- is it possible?!?

In a reproductive-aged woman, progesterone is only made in the ovary during the 2-ish weeks of the luteal phase after ovulation has occurred. Without ovulation, there is no progesterone.

The female body is well-adapted to the natural 2-weeks-with then 2-weeks-without progesterone cycle, but any woman who is not ovulating will experience progesterone deficiency.

This includes women:
* taking hormonal birth control, which blocks ovulation
* with PCOS or in perimenopause who have irregular periods, skipped periods, or anovulatory cycles
* in menopause who no longer menstruate

Progesterone receptors are widespread throughout the body and, notably, in the brain. Tune in to my talk to learn more about this essential hormone!

#thepill #hormonalcontraception #PCOS #menopause #perimenopause #hrt #bhrt #estrogen #estradiol #progesterone #mentalhealth

Happy Valentine`s Day to my wonderful husband and partner, Bob!

I hope everyone had a lovely day.


Not too old!
A defense of starting HRT after age 60

My latest talk is live on YouTube!

Yes, earlier is better, but we can’t turn back the clock. And starting later is better than never starting at all.

Learn why I think that no one is ever too old to start hormone replacement therapy (HRT).

In this talk, I cover:
* Where the 60 yr old / 10 yrs since final period cut off comes from and why these guidelines don’t apply to modern, human identical estradiol and progesterone.
* The data showing that HRT is safe
* The data supporting that HRT positively benefits cells and organs throughout the female body regardless of age.

If you are wondering whether or not to pursue HRT, I hope you find this information reassuring and motivating. If you are struggling to find a healthcare provider who will prescribe HRT to you, I hope this helps you have an informed conversation with your current provider or find one that is educated in modern HRT science.

Remember, not every woman is a candidate for HRT so you have to talk to a trusted doctor about your own unique medical history and risks.

Watch my talk to learn more!

#menopause #perimenopause #hrt #bhrt #estrogen #estradiol #progesterone #CVD #cardiovasculardisease #womenshearthealth #hearthealth #WomensHealthInitiative #whi #ELITEstudy #hormones

PODCAST: Happy Bones, Happy Life
Using Bioidentical Hormones Safely for Osteoporosis

I had the opportunity to sit down with my dear friend and amazing bone health expert @margiebissinger and talk about the role of hormones and hormone replacement therapy in both reducing risk for osteoporosis and improving bone health in women who have developed either osteopenia or osteoporosis.

For the full podcast:

In this podcast:
[02:46] – Can bioidentical hormones help a 78-year-old female with Osteoporosis who, for medical reasons, cannot take anabolic and antiresorptive medication?
[07:30] – Is bioidentical estrogen safe if you have estrogen+ or progesterone+ breast cancer?
[13:56] – Is there any age that’s too young to go into hormones?
[25:47] – If you start bioidentical hormones due to Osteoporosis, are they contraindicated if you have a history of polyps that cause bleeding?
[28:30] – If you have uterine fibroids and Osteopenia, are you not a good candidate for bioidentical hormones?
[33:03] – What test can you take to measure estrogen levels?
[35:20] – How would you know if your doctor is qualified to lead you down the path of bioidentical hormone therapy?
[38:30] – What is the ideal estradiol level?
[42:04] – If you can’t find a doctor who understands how thyroid hormones interact with bioidentical sex hormones, what can you do?
[46:47] – Are there any issues with taking estrogen when you have fibrous breasts?
[52:18] – After increasing my estrogen dose from one pump to two, I’ve developed migraines almost every other day. What’ going on?
[56:26] – Does using estradiol cream help?
[56:40] – When you say take progesterone for 14 days to mimic a menstrual cycle, would that apply to someone who’s had a hysterectomy?

#estrogen #hrt #bhrt #hormones #bonehealth #osteoporosis #osteopenia