Our Staff

Meet Our Functional MD Led Team

Dr. Eric Potter, IFM Certified MD

Founder, Physician

Dr. Eric Potter graduated from Vanderbilt Medical School and then went on to specialize in internal medicine (adult) and pediatric care, spending significant time and effort in growing his medical understanding while caring for patients from all walks of life. In recent years, he devoted countless hours to obtaining the Institute for Functional Medicine Certification (link here).  This certification places him within a small group of regional practitioners who have completed the entire program.  At Sanctuary you will find the best of the conventional medical field combined with the best of Functional Medicine.

Beyond the science, Dr. Potter has personally experienced healthcare crises from both sides of care–as a physician and as a family member to patients. Working within our broken healthcare system and taking his family members through that same system inspired him to look for new ways to deliver the quality of healthcare he envisioned.  Stepping out of the insurance-based model of medicine allows him to provide whole person care in longer visits.  Providing wholesale pricing on lab tests and supplements removes the profit motive for these services, allowing patients to trust his recommendations.  Practicing Functional Medicine allows him to treat root causes rather than superficial symptoms. He endeavors to be the patient’s trusted advocate with the goal of restoring a healthier more abundant life.

Besides serving as a physician, he is married to an amazing wife and has six beautiful children. Their family has been shaped by the providential occurrences in their lives, including the beauty of adoption.

Dr. Potter also enjoys running, reading, hiking, and spending time with his family.

“Whatever you do, work at it with all your heart, as working for the Lord and not man.” – Colossians 3:23

Continuing Medical Training And Certifications

  • Institute of Functional Medicine – Certified Practitioner
    • Advanced Practice Modules (APM): Cardiometabolic, Detox, GI, Hormone, Energy, Immune, Applying FM in Clinical Practice
    • Advanced Clinical Training: Pediatrics
  • Mold Toxicity Training
    • Shoemaker Surviving Mold 2019 Conference Attendance
    • International Society of Environmentally Acquired Illnesses 2019 Conference Attendance
  • Internal Medicine Board Certified
  • American Academy of Pediatrics Board Certified
  • Ben Lynch, Seeking Health Institute
    • 13 MTHFR and Nutrigenomics Courses
    • SHEICON 2015, 2016, 2017 Yearly Conferences
      • Member of Mastermind group at SHEICON2016 strategizing on advancing this approach to patient care.
  • Methylation and Bio-individualized Medicine
      • January 2015 Epigenetic Course
  • Extensive Self-Directed Research into the Methylation Cycle as it applies to all areas of health
    • William Walsh MD, Amy Yasko, and others
  • Audio Digest
    • Internal Medicine, Family Practice, Pediatrics, Psychiatry, Emergency Medicine


More Information:

Hans Hinterkopf

Physician Assistant -C

Hans Hinterkopf, PA-C, received his masters of health science degree from the University of Pennsylvania, an Ivy League University. He joined us from western NY state where he worked in hospital inpatient medicine, emergency care, and most recently spent the prior 4 years in pediatrics and home health care for the Amish. Over his 14 years of practice, Hans began to see that there were many questions that could not be answered with modern medicine, both in the clinical setting, and in his own home. He became an avid researcher of alternative approaches, became certified in the nutritional healing protocol known as the GAPS diet, and his goal in his practice of pediatrics was to get kids off medications. Currently in process of his functional medicine education and certification, Hans brings knowledge of nutrition and gut health as it relates to many disease states, essential oils, detox, brain health (Dr. Amen and Dr. Bredesen training), mold detoxification, and clean living that are a fitting complement to Dr. Potter’s extensive expertise in functional medicine.

An outdoor enthusiast, Hans loves hiking with his son, rock climbing, kayaking, organic farming, playing worship music with his family, studying functional medicine, building relationships with his patients, taking care of the poor, and living close to the earth and his Creator. Hans, and his wife of 20 years, home-school their two children.  They are enjoying their farm with their 3 horses.

Continuing Medical Training And Certfications

  • Institute of Functional Medicine
    • Advanced Clinical Training: Dr. Bredesen Neuro Cognitive Program (Alzheimers therapy)
    • Advanced Practice Modules (APM): Cardiometabolic, Detox, GI, Hormone, Energy, Immune, Applying FM in Clinical Practice
  • Dr. Amen Clinic Training

Elizabeth York

Nurse Practitioner

Elizabeth (Beth) York, FNP-C, earned her Masters of Science in Nursing from Vanderbilt University School of Nursing with a focus in Acute Care, then went on to earn her Post-Masters as a Family Nurse Practitioner. She joins us after four years spent practicing Bioidentical Hormone Replacement Therapy (BHRT), Thyroid Optimization and Treatment for Polycystic Ovarian Syndrome (PCOS)/Insulin Resistance in a private clinic in Nashville. She holds Specialty Certification through Worldlink Medical in Advanced Bioidentical Hormone Replacement Therapy and is additionally certified through BioTE Medical. Before working in BHRT, she practiced in both Urgent Care, Specialty Infusions, Psychiatric Medication Management and Transcranial Magnetic Stimulation (in which she is also certified), and began to see that traditional (or modern) medicine couldn’t answer many questions or “fix” as many patients as she would have preferred. She is an avid researcher and so began to research alternative approaches to diagnosis and treatment that she soon found helpful for her patients, her family and herself. She brings knowledge of essential oil safety and use, nutrition and toxin-free clean living as they relate to many disease states and works to not only reverse, but to prevent future disease and disability by optimizing current health in all ways possible. She is passionate about teaching the why behind what she recommends to patients and finds great joy in helping, then seeing, her patients achieve their personal health goals and feel great.

Beth most enjoys spending time with her three children, her 2 dogs, her family and her friends. In her time away from patients, she volunteers for her church Medical Dental Unit to provide free healthcare services to underserved areas around Middle Tennessee, sings in her church Worship Choir, Volunteers in her church’s childcare areas and is typically Room Mom for at least 1 of her 3 children’s classes each school year. She is an avid reader, lover of music (especially Broadway Musical and Choral Music), lover of animals, the outdoors, hiking, documentaries, local festivals, travel, and most any outdoor activity with water.

Continuing Medical Training And Certifications

  • Worldlink Medical (Certified in Advanced Bioidentical Hormone Replacement Therapy)
    • Part I Bioidentical Hormone Replacement Therapy
    • Part II  Bioidentical Hormone Replacement Therapy
    • Part III Bioidentical Hormone Replacement Therapy
    • Part IV Bioidentical Hormone Replacement Therapy
    • Hormones and Beyond for 21st Century Wellness Medicine
  • BioTE Medical (Certified BioTE Medical BHRT Provider)
    • BioTE Medical BHRT Course
  • Methylation and Bio-individualized Medicine
    • Transcranial Magnetic Stimulation

Steven Paske

Steven Paske is a native of St. Louis, MO and holds a Master’s Degree in Education from Lindenwood University. He’s served as an educator and administrator for more than a decade, most recently as principal for a private school.

Steven and his wife moved to Nashville in 2014 and were happy to find Dr. Potter as their personal physician. He joined the Sanctuary Functional Medicine team in 2016.

Steven and his wife Erin own and operate a learning center which is certified in tutoring students with dyslexia.

Brooke Blackburn

Brooke Blackburn is a Tennessee native who started in the medical field as a candy striper. In 2015, she earned her AEMT (Advanced Emergency Tech) Certification from Columbia State Community College. Her experience ranges from physician offices to EMS at Maury Regional Medical Center.

In 2015, she earned her AEMT (Advanced Emergency Medical Tech) through additional training and plans to further her education at nursing school. When not at work, Brooke enjoys spending time with her 3 children and friends who have become family. Camping, local festivals, school sports, competition cheer and tumbling are just a few of the activities that they enjoy together.

Georgia McCray

Georgia McCray has over 30 years experience working in the health care industry in both private practice and multi specialty practices, as well as hospital medicine and academic medicine. Her experience in billing, coding and health care operations has been a welcomed addition to the Sanctuary Functional Medicine team. Certified in office based coding, she also possesses a masters of Business Administration.

Georgia moved to Nashville from Illinois in 1997. Currently live in Nashville, with her husband, where they enjoy watching local sports, cooking and traveling.

Lacy Hodges

Lacy is a Nashville native. She attended college at Samford University in Birmingham, Alabama where she received her Bachelors degree in nursing. Her first experience in nursing was working at UAB in their Level 1 Trauma Unit and Emergency Department.

Lacy returned to Nashville where she spent 7 years as an ER nurse at Summit Medical Center. She earned her Bachelors degree in nursing from Samford University. Lacy is married and has one dog named Lila. In her free time, she loves to travel, read books, hike, cook, play basketball, watch sports, and enjoy friends and family.

Sam Stevens

Sam has over 15 years experience in medical billing and practice management. She has worked various positions in as many specialties including Urgent Care, Plastics Surgery and Orthopedics.

Sam developed an interest in functional medicine and genetics while scouring medical journals in an attempt to avert an autism diagnosis for her son that could not be accomplished in a modern healthcare model. Sam lives in Primm Springs TN with her husband, 3 children, 3 dogs and a flock of chickens. “

Marlene Roncskevitz

Marlene eagerly joins Sanctuary with the goal of making each patient feel cared for, respected and given the attention that quality health care promises.

Marlene is originally from New Jersey and has lived in Tennessee for 30 years. After earning a Certification in Youth Ministry from Seton Hall University in New Jersey in 1986 she moved on to work for the Archdiocese of Miami, Florida and then landed in Tennessee to raise her family.

Marlene’s health care experience has been varied over the years, from working at DCI Donor Services, Physical Therapy to Cardiac Telemetry

Kimberly Garrard

Kimberly Garrard is Texas native who has wanted to serve others in a meaningful way as long as she can remember. She earned her LPN degree from the Tennessee College of Applied Technology and has experience working as a certified nurse assistant, doula, midwife assistant, nanny, and elderly caregiver.

Kimberly has seen first hand the value of taking a functional medicine approach to care–healing ailments at their root causes through a combination of natural and clinical remedies.

Kimberly enjoys spending time with her her nine nieces and nephews, talking about Texas, watching football and photography.

Kira Whitham

Kira Whitham, Nutritionist at Sanctuary Functional Medicine, holds a Master’s in Health and Nutrition Education from Hawthorn University, as well as an additional 30 hours of training through the School of Applied Functional Medicine and IFM. She combines the principles of holistic nutrition and functional medicine to help people bring their bodies back to their intended state of wellness. She is a firm believer in the healing power of food and works hard to help her clients improve their relationship with food while gaining an understanding of what nourishes and depletes the body.