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With nearly eight decades of combined experience, an unparalleled commitment to excellence and a genuine passion for our patients, The Perinatal Group is a leader in high-risk pregnancy care. 


We are proud to be your provider of choice.

Meet Our Physicians


Salvatore Lombardi, M.D.

Salvatore J. Lombardi, M.D., is Board Certified in both Obstetrics and Gynecology and Maternal Fetal Medicine. He is nationally recognized in the field of Perinatology, having published or presented over 150 scientific papers. He received his fellowship training in Maternal–Fetal Medicine at Vanderbilt University Medical Center, where he was co-founder of the CVS program and the first physician to perform chorionic villus sampling both transcervical and transabdominal. He remained on the fulltime academic faculty until 1992, receiving numerous awards including the prestigious American College of Obstetricans and Gynecologists Purdue Fredrick award for Excellence in Medical Research. Dr. Lombardi was one of the innovators in the field of Doppler ultrasound, presenting his work both nationally and internationally. He is published in the field of ultrasound and genetics and received the Outstanding Community Hospital Research Award for his work in the area of genetics at the 1994 meeting of the Society of Perinatal Obstetricians.


In 1992, Dr. Lombardi founded the Maternal Fetal Group, which would grow to become the largest private practice provider of high risk Obstetric services in Middle Tennessee. Dr. Lombardi was instrumental in the development of the High Risk Obstetric Service at both Baptist and Centennial Women’s Hospital. He has had a long and distinguished military career having served in Operations Desert Shield / Storm / Noble Eagle / Southern Watch / Northern Watch / Deny Flight / Iraqi Freedom I, III and Enduring Freedom Afghanistan. He recently retired as Surgeon General for the Maryland National Guard. Highly decorated, his awards include the Legion of Merit, Air Medal, Meritorious Service Medal (5 oak leaf clusters), Aerial Achievement Medal, Air Assault Badge, Chief Flight Surgeon Wings and the Maryland Distinguished Service Cross.

Dr. Lombardi presently serves as Clinical Professor, Department of Obstetrics and Gynecology, Vanderbilt University Medical Center.


Kathleen Mayor-Lynn, M.D.

Dr. Kathleen Mayor-Lynn is a graduate of the University of Florida, where she received honors. She received her Bachelor of Science degree in Nutritional Sciences. She received her medical degree from the University of Miami School of Medicine. She remained in Miami for her internship and residency and was awarded the Mary Jo O’Sullivan award for excellence in Obstetrics as well as the special excellence in endoscopic procedures award. She received numerous teaching awards during her residency and fellowship. Dr. Mayor-Lynn completed her fellowship in Maternal-Fetal Medicine and Masters of Science in Clinical investigation at the University of Florida.

Following completion of her fellowship, she moved to Nashville, TN where she joined The Maternal Fetal Group, an affiliate of Obstetrix Medical Group. She also served as the Medical Director for Perinatology at the Tristar Centennial Women’s Hospital for 2012. After 4 years with Obstetrix, she left to establish The Perinatal Group, PLLC with Dr. Salvatore Lombardi. She is board certified in both Obstetrics and Gynecology and Maternal-Fetal Medicine and is an active member of ACOG, SMFM, AIUM, and ISUOG.

Dr. Mayor-Lynn lives in Middle Tennessee with her husband and three children. She has special interest in prenatal diagnosis, ultrasound, fetal echocardiography, and hypertensive disorders of pregnancy.

Tiffanee Lenzi, M.D., PhD

Dr. Lenzi brings to our practice of maternal fetal medicine added expertise in complex genetic issues. Dr. Lenzi received her Medical Degree as well as a PhD in Neuroscience from Wayne State University. She completed her OB-GYN Residency at Stanford University, and returned to the University of Michigan for her Maternal Fetal Medicine and Medical Genetics fellowships. We are excited to welcome her back “home.” Dr. Lenzi is Board Certified in Obstetrics and Gynecology, Maternal Fetal Medicine and Medical Genetics.

Abbie Smith, WHNP, ARDMS

Abbie Smith is a board certified Women’s Health Nurse Practitioner and ARDMS registered in OBGYN.  After graduating from Western Kentucky University, she earned her Masters of Science in Nursing at Vanderbilt University.  Prior to joining the Perinatal Group, Abbie worked as a Nurse Practitioner for a large hospital system’s MFM practice, caring for high-risk obstetric patients; in addition to providing routine gynecologic and obstetric health care services.  Her clinical interest and expertise are in providing pregnancy care to high-risk women with a focus on diabetes, patient education and outreach.

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