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. See Our Process
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.
Meet our doctors
Robin BerzinDoctor & CEO • New York City
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.
Thyroid, hormones, fertility, digestive health, the biology of stress, cancer prevention, and autoimmune disease
Lilli LinkDoctor • New York City
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.
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.
Zandra PalmaDoctor • New York City
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.
Metabolic health functional pain management longevity metabolic syndrome hormonal health health optimization for athletes genetic and epigenetic medicine heart metabolic diabetes weight management thyroid autoimmune allergies asthma hormone fertility digestive issues mental health
Gabriella SafdiehDoctor • New York City
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.
Pediatrics teenagers and young adults autoimmune disease systemic lupus erythematosus juvenile rheumatoid arthritis thyroid adrenal health
Julie TawDoctor • New York City
Dr. Julie Taw, MD is a board certified Internal Medicine physician. Julie graduated from Albert Einstein College of Medicine and completed her residency training at New York University. As a busy working mom she understands the challenges of incorporating a healthful lifestyle into our busy lives.
Stephanie WallmanDoctor • New York City
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.
Gastrointestinal Health, Obesity/Metabolic Syndrome, Thyroid and Adrenal Health, Preconception Planning, Diabetes, Hypertension, Autoimmune Disease, and Sleep Disorders
Harika PalDoctor • New York City
Dr. Harika Pal MD is a board-certified Family Medicine physician. She graduated from the University of South Florida College of Medicine and completed her family medicine residency training at the Mount Sinai Beth Israel Medical Center. Prior to joining Parsley Health, she practiced full-spectrum family medicine in the South Bronx with the Montefiore medical system and served as the Medical Director for the School Based Health Center Program under the Institute for Family Health.
Preventative care, Women’s Health/Reproductive Health, and Cardiometabolic Health
Jeffrey EglerDoctor • Los Angeles
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.
Health information technology, advanced biomarkers, and predictive analytics, hormone health, brain/mental health and wellbeing, nutrition and digestive health, and autoimmune disease.
Rachael GonzalezDoctor • Los Angeles
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.
Thyroid management, menopause management, adrenal issues, digestive disorders, asthma, allergy, autoimmune conditions, migraines, metabolic syndrome, diabetes, preventative cardiology, and nutrigenomics.
Jaclyn TolentinoDoctor • Los Angeles
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.
Hormone balancing and optimization, epigenetic & nutrigenomics, clinical cannabinoid medicine, cancer prevention and nutrition, men’s & women’s health
Tiffany LesterDoctor • San Francisco
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.
Thyroid and adrenal health, cardiovascular disease, metabolic health, stress hormones, genetic and epigenetic medicine, hormonal health and fertility, and autoimmune disease.
Kerri MasuttoDoctor • San Francisco
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.
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
A personalized plan designed to help you resolve chronic conditions and improve your health, reducing the need for prescription drugs and expensive specialists.Get Started
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