Our Team
Dr. Margaret Apostol, MD
Dr. Margaret Apostol is a respected physician, board certified in both family and integrative medicine. She has always had a passion for researching the impact of nutrition on human health. In fact, her undergraduate degree was in Nutrition Sciences—a unique emphasis in the career of a medical doctor. After her residency through The Ohio State University, Dr. Apostol completed an integrative medicine fellowship through the University of Arizona.
Dr. Apostol has been personally mentored by world-renowned neurologist, Dr. Dale Bredesen, on cognitive health protocols to help address mild cognitive decline and Alzheimer’s. Dr. Apostol also continues to access new research and treatment breakthroughs as a member of the Institute for Functional Medicine (IFM). She is IFMCP Certified. Her dedication to functional medicine and whole person care continues in in her practice at Apostol IFM.
Tabatha Durand
CNP, FNP-C, APHN-BC, HWNC-BC
Tabatha Durand is a board-certified family nurse practitioner. Noticing that depersonalized protocols increasingly drove healthcare, Tabatha recognized that the “art of medicine” needed restoring. Until then, she determined to continue her education (perpetually) to protect her clients from competing interests.
Tabatha graduated summa cum laude with her master’s in nursing. After an internship with Apostol IFM, she was eager to return to offer root cause care. A firm believer in the human spirit and a witness to the negative impacts of sick-care, Tabatha continues to advocate for her client’s best interests hoping that each life change elevates humanity.
Kelly Clark
Kelly is a transplant to Texas from Southern California and has worked in the medical field for over 15 years as a front and back-office M.A. She and her husband have raised their twins here in Texas for over a decade. In her spare time she enjoys boating, watching USC football, cooking, and attending all her children's sporting events.
Jamie Langston, MSN, AGNP-C, CCRP
ReCODE 2.0 Certified, SOCRA Certified
Jamie Langston is a board-certified Nurse Practitioner with over 30 years of experience in adult and geriatric care, and more than a decade dedicated to advancing research in cognitive health and dietary supplements.
Jamie is ReCODE 2.0 Certified and SOCRA Certified, She brings a deep understanding of evidence-based strategies for cognitive optimization and prevention of cognitive decline.
Her background includes extensive clinical research, peer-reviewed published publications, and leadership in both patient-centered care and interdisciplinary collaboration.
Jamie partners with patients to co-create personalized plans that empower optimal health outcomes—always grounded in compassion, dignity, and respect.
With a heart for patient advocacy and a passion for promoting lifelong wellness, Jamie believes in walking beside each individual on their health journey while merging clinical expertise with meaningful connection.