At BioRenew, you’re more than a number or a chart. 

Meet The Team!

Stevie Smoot - FNP-C, ABAAHP

Co-Founder, Co-Owner, Family Nurse Practitioner

Stevie Smoot, FNP-C, APRN, MSN, ABAAHP, is a Board-Certified Family Nurse Practitioner with a specialized focus on Functional, Regenerative and Integrative Medicine. She completed an esteemed fellowship through The American Academy of Anti-Aging Medicine and The Metabolic Medicine Institute and holds certification as an American Board of Anti-Aging Health Practitioner. Additionally, she is certified in IV Nutrient and Chelation Therapies, Peptide Therapies and Stem Cell Therapy. Stevie earned her Master's degree from Tennessee State University and completed her undergraduate studies at Sewanee, University of the South.

Beginning her career in Family Medicine, Stevie became disillusioned with the conventional medical model's inability to effect meaningful, long-term health improvements in her patients. This led her to explore the realms of functional, integrative, and regenerative medicine. Five years ago, she co-founded BioRenew Functional and Integrative Medicine in Murfreesboro with her mother, a practice initially centered on hormone replacement therapy and IV nutrient therapy. Under her leadership, BioRenew has since evolved into one of the region’s fastest-growing  integrative clinics, offering a comprehensive range of services that address the multifaceted health needs of the community.

Mary Lynne Walker - FNP-BC

Co-Founder, Co-Owner, Family Nurse Practitioner

Mary Lynne Walker is a board-certified family nurse practitioner and has been practicing family medicine for over 20 years. She opened her first family practice, Bell Buckle Family Medical Clinic over 11 years ago. One decade ago after experiencing her own hormone health issues, Mary Lynne became educated in bio identical hormone replacement therapy and began offering these services to her patients. She has witnessed hundreds of patient’s lives change after beginning BHRT. She is a member of the American Academy of Anti-Aging Medicine and has attended several of their conferences over the years. She has been a preceptor for Vanderbilt School of Nursing for many years and has taught many Nurse Practitioner students. In her free time Mary Lynne is working on her farm with her husband Brian and taking care of horses and cattle. She is an avid equestrian and animal lover. She also adores spending time with her children and grandchildren. 

Kelsey Choate, FNP-C

Family Nurse Practitioner, IFMCP Certified Practitioner

Kelsey Choate holds a Bachelor of Science in Nursing from Belmont University and advanced degrees as a Holistic Nurse Practitioner and Family Nurse Practitioner from Tennessee State University. Kelsey is board certified as a Family Nurse Practitioner and has earned the designation of IFMCP Certified Practitioner from the Institute of Functional Medicine. Additionally, she has expanded her expertise by completing Peptide I and II certification through the American Academy of Anti-Aging, as well as completing Vanderbilt’s Health Coaching Program. Kelsey’s previous background includes experience in general medicine, intensive care, psychiatric nursing, and addiction medicine. Passionate about helping individuals uncover the root causes of health concerns while embracing holistic and alternative therapies, Kelsey is dedicated to providing personalized care. In her leisure time, she enjoys creative writing, attending conferences, exploring new cuisines, and cherishing moments with loved ones.

Dr. Becca Ranz, DO

Dr. Becca Ranz is a Murfreesboro, TN native committed to personalized medicine and preventive care. She earned a Neuroscience degree from Vanderbilt University and graduated from Lincoln Memorial University-DeBusk College of Osteopathic Medicine as a Sigma Sigma Phi honor society member. Board-certified in Physical Medicine and Rehabilitation, she completed her residency at Indiana University in 2017.

Since 2020, Dr. Ranz has focused on integrative, preventive, and regenerative medicine, specializing in hormone replacement and peptide therapy for menopause management. She emphasizes a holistic approach, creating tailored care plans for her patients' unique needs.

Dr. Ranz belongs to several professional organizations, has a Peptide Certification from SSRP, and is studying genomics to enhance her practice. Outside of work, she enjoys staying active and healthy with her supportive husband, two young boys, and two dogs, cherishing time spent outdoors together.

Dr. Kalb

Medical Director

Dr. Kalb, received his medical degree from SUNY at Stony Brook in New York, did his Residency in Family Medicine at the University of Pittsburgh Medical Center Shadyside Hospital, and received his Masters of Public Health from the University of Texas, Houston. Dr. Kalb is a Fellow in the Medical Academy of Pediatric Special Needs (MAPS), and he is one of the physicians listed by the PANS/PANDAS Network. In addition, Dr. Kalb is a member of the International Lyme and Associated Disease Society (ILADS) and completed their Fellowship. After a 10-year career teaching and doing research in Family Medicine, including as Director of a Family Medicine Residency in Houston, Dr. Kalb moved to Nashville and decided to focus on an Integrative practice which he opened in Cool Springs in 2006. The clinical areas of focus for the practice include PANS/PANDAS, CIRS, Autism, Lyme Complex Disease, Environmental toxicity, gut health issues and Autoimmune Disease in children and adults.

He is now serving as the new medical director at BioRenew! 

Robin Sanborn, MA

Administrative Assistant

Robin is a Medical Assistant with 30 years of experience in OB/GYN, High Risk OB and Fertility. She is a busy mom of five children and three labs. She enjoys spending time with her family on the lake, traveling and crafting.

Amber Florence, RN

Registered Nurse

Amber graduated from nursing school in 2008. She spent 7 years as a labor and delivery nurse and then almost 7 years as a fertility nurse. She is a busy mom of three and enjoys outdoor activities, women’s basketball, old school R&B but, most of all, being a mom. She has completed her IV Nutrient and Chelation Therapy Certification course through The American Academy of Anti-Aging Medicine.

Lyndsey James, RN, BSN

Registered Nurse

Lyndsey graduated with her BSN from Cumberland University nursing school in 2012. In addition to Bio Renew, she works at an infusion clinic and has 10 years of experience in the emergency department. She and her husband are busy parents of two children and two beagles. She enjoys traveling, outdoors and baseball. 

Alaina Bradshaw, BSN, RN

Registered Nurse

Alaina graduated from Middle Tennessee State University in

2021 with her bachelor of science in nursing. She worked in pediatrics prior to coming to BioRenew. In her free time she enjoys spending time with her

husband and son. She also enjoys reading, being outside and spending time with her family.

Logan Johnson, MA

Medical Assistant

Prior to working at BioRenew, Logan was a fertility medical assistant for 6 years. She has a busy mom of a 4-year-old and 2 dogs. Some of her favorite things include coffee, plants and reality TV. In her free time she enjoys spending time with friends and family.

Kiandra Franklin, MA

Medical Assistant

 Kiandra graduated from the University of Tennessee at Chattanooga in 2020 during COVID with her bachelor of science degree in exercise science.  She has been a medical assistant for 3 years.  Prior to joining our practice she worked in hormone replacement and women's health.  Outside of work Kendra loves spending time with her friends and family, exploring new places and shopping.

Courtney Hunter

Office Assistant and Supplement Coordinator

Courtney, office assistant- Courtney has a bachelors degree in social work and has been working in functional and Integrative Medicine for 4-1/2 years as an office assistant. She enjoys working out, lifting weights and running away to the mountains to snowboard with her husband whenever she gets a chance. 



Mikki Massey

Patient Intake Coordinator

Mikki joins us as our patient intake coordinator.  She brings over 20 years of health care and patient care experience to our growing team.  She is excited to become part of BioRenew and looks forward to assisting our patients. Outside of assisting patients she enjoys spending time with family and friends.