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Smarter doctors, superior care.

Our doctors are board-certified physicians who trained at top U.S. medical schools. They spend time getting to know you so they can get you back to healthy.

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Our Doctors Think Differently

Using an outcomes-driven approach, we focus on the root cause of disease to improve health and wellbeing while helping our members reduce their overall health care costs.

I had been suffering from exhaustion, bloating and weight gain for years. My Regular PCP just told me to get some sleep. Dr. Egler was the first doctor..

Derek

Defense Attorney
Dr. Jeffrey Egler Md.
USC, UCLA, IFM

Doctors who listen and understand your needs.

Most doctors spend about 19 minutes with each patient a year. At Parsley Health, you get over 200 minutes with your doctor a year.

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Meet our doctors

Robin Berzin

Doctor & CEO • New York City

Background

Dr. Robin Berzin, MD is the founder and CEO of Parsley Health. A Summa Cum Laude graduate of the University of Pennsylvania, Robin completed medical school at Columbia University’s College of Physicians and Surgeons, and trained in Internal Medicine at Mount Sinai Hospital in New York City. She has also trained in functional medicine with the Institute for Functional medicine, where she is an advisor on digital technology.


Interests

Thyroid, hormones, fertility, digestive health, the biology of stress, cancer prevention, and autoimmune disease

Lilli Link

Doctor • New York City

Background

Dr. Lilli Link, MD is a board-certified internist and functional medicine practitioner who graduated from medical school at the University of Chicago and completed her residency at Columbia Presbyterian Medical Center in New York.


Interests

Cancer prevention, cardiovascular disease, thyroid and adrenal health, autoimmune disorders, fatigue, digestive health, weight management, metabolic syndrome, diabetes, allergy desensitization, stress hormones, hormonal health & fertility, and nutrition.

Aubre Weber

Doctor • New York City

Background

Dr. Aubre Weber, DO is a board-certified physician in the three areas of: Internal Medicine, Obesity/Metabolic Medicine, and Lifestyle Medicine. She is also studied in Functional Medicine through the IFM.


Interests

Lifestyle medicine, obesity/metabolic medicine, diagnostic and precision medicine, sleep disturbances, biohacking for longevity, nutrition, adaptive and evolutionary health,  genetic and epigenetic medicine, and cognitive health.

Gabriella Safdieh

Doctor • New York City

Background

Dr. Gabriella Safdieh, MS, MD is a pediatrician and rheumatologist. Gabriella completed medical school at the University of Pennsylvania, trained in Pediatrics at New York University, and completed a fellowship in Pediatric Rheumatology at the Hospital for Special Surgery in New York City / Weill Cornell Medical center.


Interests

Pediatrics, teenagers and young adults, autoimmune disease, systemic lupus erythematosus, juvenile rheumatoid arthritis, thyroid, and adrenal health.

Stephanie Wallman

Doctor • New York City

Background

Dr. Stephanie Wallman, DO is a board-certified Family Medicine physician specializing in Functional Medicine.  She graduated from Lake Erie College of Osteopathic Medicine and completed her residency training as Chief Resident at Jamaica Hospital Medical Center in Queens, NY. In college, she double majored in Biology and Psychology while minoring in Evolutionary Studies. She received her Functional Medicine training through the Institute of Functional Medicine.


Interests

Gastrointestinal Health, Obesity/Metabolic Syndrome, Thyroid and Adrenal Health, Preconception Planning, Diabetes, Hypertension, Autoimmune Disease, and Sleep Disorders

Zandra Palma

Doctor • New York City

Background

Dr. Alexandra Palma, MD is a physician with a background in Functional Medicine, Internal Medicine, and Anesthesiology. Her interest in Functional Medicine began in college when she studied Human Evolutionary Biology at Harvard University.


Interests

Metabolic health, functional pain management, longevity, metabolic syndrome, hormonal health, health optimization for athletes, genetic and epigenetic medicine.

Harika Pal

Doctor • New York City

Background

Dr. Harika Pal MD is a board-certified Family Medicine physician. She received her medical degree from the University of South Florida College of Medicine in Tampa, FL before moving to New York City to complete her family medicine residency training at the Mount Sinai Beth Israel Medical Center. Prior to joining Parsley Health, she practiced full-spectrum family medicine (ranging from pediatric care, prenatal care, women's health, and adult care) in the South Bronx with the Montefiore medical system and previously served as the Medical Director for the School Based Health Center Program under the Institute for Family Health with multiple locations throughout NYC. 


Interests

Preventative care, Women’s Health/Reproductive Health, and Cardiometabolic Health 

Jeffrey Egler

Doctor • Los Angeles

Background

Dr. Jeff Egler, MD is board-certified by the American Board of Family Medicine and has completed the certification training with the Institute of Functional Medicine. He graduated from Drexel University School of Medicine and completed his residency training at the University of Colorado.


Interests

Health information technology, advanced biomarkers, and predictive analytics, hormone health, brain/mental health and wellbeing, nutrition and digestive health, and autoimmune disease.

Rachael Gonzalez

Doctor • Los Angeles

Background

Dr. Rachael Gonzalez, MD is board certified physician in both Family Medicine and Integrative Medicine.  Rachael graduated with honors from Harvard College and completed her medical school education at the University of California, San Diego.


Interests

Thyroid management, menopause management, adrenal issues, digestive disorders, asthma, allergy, autoimmune conditions, migraines, metabolic syndrome, diabetes, preventative cardiology, and nutrigenomics.

Jaclyn Tolentino

Doctor • Los Angeles

Background

Dr. Jaclyn Tolentino, DO is a Board-Certified Family Physician with a collaborative, holistic approach to practicing medicine. She holds a subspecialty certification in Hormone Optimization, has received extensive training in Functional Medicine through the Institute of Functional Medicine, and additional training in oncology nutrition.


Interests

Hormone balancing and optimization, epigenetic & nutrigenomics, clinical cannabinoid medicine, cancer prevention and nutrition, men’s & women’s health

Tiffany Lester

Doctor • San Francisco

Background

Dr. Tiffany Lester, MD is a graduate of The University of Cincinnati College of Medicine, where she completed her training in Internal Medicine. She also graduated from Integrative Medicine Fellowship at The University of Arizona, and she has extensive training in functional medicine through The Institute of Functional Medicine.


Interests

Thyroid and adrenal health, cardiovascular disease, metabolic health, stress hormones, genetic and epigenetic medicine, hormonal health and fertility, and autoimmune disease.

Kerri Masutto

Doctor • San Francisco

Background

Dr. Kerri Masutto, MD is an Internal Medicine primary care physician with an integrative, whole-person approach to medicine who graduated from The College of Medicine at University of Illinois. With training in primary care, plus ongoing education through the Institute for Functional Medicine she creates a unique healing experience for anyone looking to improve their health and their life.


Interests

Optimization, bio-hacking, prevention and reversal of cognitive decline, women’s health, mental health, integrative modalities

Total health team

Meet regularly with your doctor and health coach for guidance, support, and new know-how. You’ll define a plan that’s right for you, including nutrition and exercise.

About Us

Personalized plans

A personalized plan designed to help you resolve chronic conditions and improve your health, reducing the need for prescription drugs and expensive specialists.

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Data-driven approach

Your plan is based on over 1,000 biomarkers and our proprietary symptom monitoring. We combine that with advanced testing—from genes to the microbiome.

How It Works

We treat the root cause of your symptoms.

Our doctors are trained in functional medicine, which means they look at the big picture, taking into account:

  • Personalized nutrition
  • Medical supplements
  • Genomic analysis
  • Physical fitness
  • Microbiome analysis
  • Positive mental health

Real results that change our members’ lives.

We combine nutrition, lifestyle, cutting-edge technology, and diagnostic testing to deliver real life-changing results.

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Irritable Bowel Syndrome
94% improved or resolved
PMS Symptoms
92% improved or resolved
Eczema
75% improved or resolved
Insomnia
80% improved or resolved
Symptoms we treat

Our board certified physicians treat a wide variety of symptoms and conditions.

Asthma

I have not used my emergency inhaler in over a year and a half...”

Asthma

I have not used my emergency inhaler in over a year and a half and have not used any inhalers at all for 11 months now. Other doctors just kept giving me more drugs and steroids. Parsley Health helped me learn that changing my diet could change my life....”

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Bloating

I was having extreme bloating and discomfort, not only at night but also during the day...”

Bloating

I came to Parsley Health because I was having extreme bloating and discomfort, not only at night but also during the day. My bloating got so bad that my OB was concerned about ovarian cancer. He sent me for an ultrasound. Once the ultrasound ruled out ovarian cancer, I decided to get to the root of my problem....”

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Heart Burn

I have struggled with gastrointestinal (GI) issues for 5 to 7 years...”

Heart Burn

I have struggled with gastrointestinal (GI) issues for 5 to 7 years. I had a range of symptoms from stomach pain to constipation. None of the GI doctors I saw could find anything wrong with me. They all recommended one food allergy test after another, which all came back negative....”

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Brain Fog

As I began to struggle with headaches, lethargy, memory loss and speech difficulties...”

Brain Fog

As I began to struggle with headaches, lethargy, memory loss and speech difficulties, I became more and more anxious, and more and more accepting of the thought that maybe I just wasn’t very smart This thought process was compounded by the fact that the doctors I went to couldn’t find anything seriously wrong with me. The majority of them saw me as a healthy 20-something with a head cold....”

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Digestive Issues

I had had a number of digestive issues and I had been tested...”

Digestive Issues

I had had a number of digestive issues and I had been tested for celiac disease, but when the results came back negative, I assumed there was some other mysterious issue going on that I would just have to live with....”

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Skin Concerns

I had always been pretty healthy and active most of my life. The one...”

Skin Concerns

I had always been pretty healthy and active most of my life. The one health issue I always had was a recurring rash. When my rash started in February 2016, I didn’t think too much of it. I saw a couple different doctors, who gave me prednisone and cortisone cream, which both initially helped. But as soon as I stopped, my rash came back. And through the months, the rash got worse. My face was swollen and painful. I couldn’t get any relief. In addition to this, I felt both mentally and emotionally exhausted. I cried or got so upset so easily, which was not like me....”

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