Meet Our Providers

James R. Stevens, MD, CAQSM, ABAARM, FAAFP

Medical Director & Provider, Cary location

James “Jay” Stevens, MD, CAQSM, ABAARM, FAAFP, is the founder of Essential Health. Having practiced innovative primary care medicine for 30 years, Dr. Stevens has worked in various conventional primary care settings, including group private practice and as a hospital-employed physician and physician leader.

His clinical focus encompasses all services at Essential Health. As Chief Innovation Officer at Essential Holding Company, the licensor and management affiliate for Essential Health, Dr. Stevens is part of a growing effort to seek, refine and introduce new knowledge and methods to Essential Health clinics in a constant quest to provide an avenue towards better health for those we serve.

Elizabeth Sierakowski, MD, ABFM, ABOIM, ABAARM

Medical Director & Provider, Raleigh location

Elizabeth Sierakowski, MD, ABFM, ABOIM, ABAARM, owns and practices at the Essential Health – Raleigh, NC location. She is triple trained in family medicine, integrative medicine, and functional medicine and has practiced from coast to coast. She joined the Essential Family with the opening of the Raleigh location in 2017. Her clinical focuses are advanced lifestyle medicine, cellular nutrition, gut health, hormone balancing, chemical-free anti-aging, adrenal and stress health, and thyroid imbalances.

As the Chief Medical Officer at Essential Holding Company, the licensor and management affiliate for Essential Health, Dr. Sierakowski leads the clinical mission of achieving optimal health for our clients, developing the advanced training roadmap for our providers, and helping expand our superior model of care nationally.

Jennie Welner, FNP-BC, ABAAHP, FAARM

Provider, Cary location

Jennie Welner, FNP-BC, ABAAHP, FAARM, is a Family Nurse Practitioner at Essential Health’s flagship location in Cary, NC and has been a part of the Essential Health family since 2013. She has developed and implemented practice protocols through the years and sought subspecialty certifications in anti-aging and regenerative medicine.

Her clinical focus is hormone balancing, thyroid health, adrenal health, aesthetics, skincare, hair restoration with PRP, IV nutrient therapy, and weight management.

Kristin “Kris” Bailey, FNP-C, ABAAHP

Provider, Raleigh location

Kristin “Kris” Bailey, FNP-C, ABAAHP, is the Family Nurse Practitioner at the Essential Health – Raleigh, NC location. She has years of experience in a number of fields, including pediatrics, geriatrics, medical/surgery, ER, OR, PACU, plastics, home health, and family practice, and has completed” coursework for certifications through the American Academy of Anti-Aging Medicine. She firmly believes that “one size does not fit all” and loves the patient/provider collaborative approach of tailoring treatment plans for each individual.

Kris’ clinical focus is helping clients achieve health optimization through preventative care, hormone balancing, IV nutrient therapy, thyroid management, stress reduction, gut healing and immune support.

Jill Vanarthos, PA-C, IFMCP

Provider, Raleigh location

Jill Vanarthos, PA-C, IFMCP is a physician assistant at the Essential Health – Raleigh, NC location. She is a South Florida native, fluent in Spanish, and worked in the primary care setting for many years. After witnessing the benefit of nutritional and other supportive therapies for family and friends with health challenges, she developed an interest in integrative and functional medicine and completed certification with the Institute of Functional Medicine.

Jill’s focus is on optimizing health and healing through inflammation reduction, using various modalities including nutrition, detoxification, blood sugar and hormone balancing, gut healing, immune support, stress reduction and weight loss. She has a special interest in the Hispanic community and homeless population, and has volunteered at the Raleigh Rescue Mission and on the global mission field.

Swathi Talla, MD, ABFM

Provider, Raleigh location

Swathi Talla, MD, ABFM is a provider at the Essential Health – Raleigh, NC location. She is dual trained in family medicine and integrative medicine and brings a wealth of knowledge and experience in the practice of medicine. She has practiced in India and West Virginia as a physician prior to relocating to Raleigh.

In addition to traditional family medicine, her areas of clinical focus are lifestyle medicine, hormone balance, thyroid health, and adrenal health.

Nikki Fowler, FNP-C

Provider, Raleigh location

Nikki Fowler, FNP-C is a Family Nurse Practitioner at the Essential Health – Raleigh location. She has worked in conventional primary care settings and has a nursing background in surgical, intensive care, postpartum, and lactation. She is originally from West Virginia, but has called Raleigh, North Carolina home since 2002. Nikki’s interest in both functional and integrative approaches in medicine grew as she began to make adjustments to her and her family’s lifestyle over the last several years. She is a fellow of the American Academy of Anti-Aging Medicine.

Nikki emphasizes collaborative goal setting and building relationships with her patients. Her areas of special interest are regenerative medicine, health optimization, and aesthetics.

Julian R. Gershon Jr., DO, FAOASM, ABAARM

Provider, Aspen Institute for Anti-Aging & Regenerative Medicine

Julian R. Gershon Jr., DO, FAOASM, ABAARM is a provider at the Aspen Institute for Anti-Aging and Regenerative Medicine, an Essential Health affiliate clinic with two locations in Aspen, CO and Denver, CO.

Dr. Gershon is triple-board-certified in family medicine, sports medicine, and anti-aging and regenerative medicine. He also holds a fellowship in Stem Cell therapy awarded by the American Academy of Anti-Aging and Regenerative Medicine. Dr. Gershon received his medical degree from Kirksville College of Osteopathic Medicine and completed his internship at Flint Osteopathic Hospital in Flint, Michigan. Over the course of his career, he has been involved with treating numerous sports teams, including serving as the team physician at the 1996 Olympics in Atlanta, Georgia.

Dr. Gershon specializes in regenerative medicine to improve movement, flexibility, and reduce joint pain, as well as hormone balance, PRP injections for wound healing and hair loss, and concierge primary care.

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