Elizabeth Greig, FNP-C, MSN

Nurse Practitioner

Elizabeth Greig

I am a board-certified family nurse practitioner and have been practicing functional medicine for more than 15 years. I previously taught and practiced in academia, worked in private practice, and served as a hospitalist. I also offered medical service in Thailand and India for more than a decade. I'm certified by the Institute for Functional Medicine and have completed advanced training at the Center for Mind-Body Medicine. I am a current contractor at Parsley Health.

Provider Overview

Areas of Focus

Gut & Digestive IssuesHormones & FertilityThyroid & AdrenalThyroid & AdrenalAutoimmune & InflammationMenopause & PerimenopauseHeart HealthMetabolic Health Environmental Toxins Weight Loss

Education & Training

  • Board-certified Family Nurse Practitioner (ANCC)
  • Hollins University, BA with honors
  • Yale School of Nursing Masters in Science of Nursing
  • Institute for Functional Medicine certification
  • Center for Mind-Body Medicine advanced study
My Approach to Care
I find that listening to your experience and understanding the details of your medical and health history and your life context, including your family, work, environmental exposures and what you like to do for fun, is the most important foundation for your care. This creates a broad map that will help us to identify root causes. From there, we do targeted testing as needed and co-create a plan of care. Your preferences and responses to treatment help us determine next steps.
Ask me about
Cross country skiing and biking, whitewater rafting with my great niece and nephew, meditation and Neurographica.
Most likely to find me
In the woods and on the lakes of the NY Catskills, standing over the kitchen stove stirring something, playing Rummikub and attending Town Board meetings.
Patient Testimonials
If you are looking for a very comprehensive analysis of your health with an individualized health plan, I highly recommend getting functional labs done through Parsley Health.
Vee, Parsley Health member
Three ways to start your functional medicine care
Each option offers expert guidance by our board-certified clinicians. The right place to start depends on what you already know and what you want help with next.
Start with labs
Get advanced lab testing to better understand your body and health. A Parsley clinician interprets your results and helps identify what matters most.
Pricing: Starting at $350. Self-pay only. HSA/FSA eligible.
Already have labs?
Upload labs from any functional labs provider and schedule a lab review with a Parsley clinician, plus guidance on what to do next.
Pricing: $250 for a one-time virtual visit. Self-pay only. HSA/FSA eligible.
Care membership
Partner with a clinician and dedicated care team who support your progress over time. Available in-person in NYC and Los Angeles, and nationwide via telehealth.
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