Garrett K. Lam, MD, FACOG

Chairman & Assistant Professor
Department of Obstetrics and Gynecology
UT College of Medicine
979 E. Third St., Suite #C-725
Chattanooga, TN 37403, USA


Dr. Lam is board certified in both Ob/Gyn and Maternal-Fetal Medicine. He received his MD from the University of Rochester, completed his residency training at Good Samaritan Medical Center in Phoenix, AZ and went to the University of North Carolina-Chapel Hill for fellowship in Maternal Fetal Medicine. While there, he was trained in various in–utero procedures such as fetal blood sampling and intrauterine transfusion, fetal shunt placement and cord coagulation for parasitic twin gestations. He also participated as the lead obstetrical surgeon or primary assistant for their pilot series of repair of fetal myelomeningocele. Post fellowship, he traveled to Europe to attend the Eurofetus Consortium(Junes annual conferences on Twin Twin Transfusion Syndrome (TTTS), and completed a mini-sabbatical on laser photocoagulation for treatment of TTTS with doctors in both Belgium and the Netherlands. In 2008, along with Dr. William Clewell, he launched the first fetal therapy center in the Southwestern United States: the “Maternal Fetal Center” of Phoenix Perinatal Associates and Banner Good Samaritan Medical Center. He practiced maternal fetal medicine for 8 years in Phoenix, AZ, serving as division director for maternal fetal medicine at Banner Good Samaritan Regional Medical center, and assistant program director for their residency program. His family and he moved to Chattanooga, TN in 2011, where he joined Regional Obstetrical Consultants as Assistant Director for Perinatal Services, and was named Associate Professor at the medical school.
Dr. Lam is a Fellow of the American College of Obstetrics and Gynecology, member of the Society for Maternal Fetal Medicine, International Society for the Study of Hypertension in Pregnancy, International Fetal Medicine and Surgery Society, American Institute of Ultrasound in Medicine, and was a representative to the North American Fetal Therapy Network. He assists the Preeclampsia Foundation with their “Ask the Experts” panel. As a thought leader in obstetrics, he serves on advisory panels and speakers(June boards for various companies in the medical industry.
In 2008, he was presented with the Ob/Gyn Department award for Outstanding Teaching Member of the faculty, and in June 2011, was recognized with a special award for his contributions to resident research and education. Starting in 2008, he has been recognized by his peers each year, with the “Best Doctors in America” award. In June 2013, he was awarded an ACOG National Teaching Award, and in November 2013, was appointed permanent chair of the OB/Gyn department for the University Of Tennessee School Of Medicine in Chattanooga, TN.
Dr. Lam has a deep interest in researching preeclampsia and postpartum hemorrhage. His work on the role of suppressor proteins in preeclamptic mothers has been published in the American Journal of Obstetrics and Gynecology. He has presented multiple abstracts for the International Society for the Study of Hypertension in Pregnancy, and has contributed to the postproduction modifications for a medical device used to treat postpartum hemorrhage. He is primary investigator for multiple local and national studies, and has published articles in multiple national and international medical journals, including AJOG, JSGI, Obstetrics and Gynecology, Obstetrics and Gynecology Survey, and the American Journal of Perinatology. He has contributed chapters to 5 different textbooks. Outside of his professional life, he is devoted to spending as much time as possible with his wife and 3 boys, practicing martial arts and attempting to resuscitate his golf game.

Research Interest

His research interests include: Obstetrics & Gynecology, Maternal & Fetal Medicine.

Scientific Activities



• 1989, Cynthia Cox Awardee: most outstanding sophomore
• 1989-1991, Achievement Rewards for College Scientists Foundation Scholar (three times)
• 1990-1991, W.M. Keck Foundation Scholar (two times)
• 1990, Los Angeles Philanthropical Society Scholar
• 1990, UCLA Microbiology and Immunology Summer Research Grant
• 1991, MacKenzie Foundation Scholar for pre-meds
• 1991, Thomas J. Watson Fellowship national finalist
• 1991, Mortar Board Honorary Society
• 1991, Phi Beta Kappa
• 1991, Graduated Cum Laude with Honors in Biology and Graduation with Distinction in Religious Studies

Medical School:

• 1992-1995, Koch Scholar
• 1992-1996, Rice Scholar
• 1992-1996, Rochester Prize Scholarship
• 1992-1994, Bradford Scholarship
• 1993, Society for Pediatric Research Summer Fellowship
• 1993, Harvard Medical School Joint Program in Neonatology Research Grant
• 1994, Strong Memorial Hospital Children’s Research Center Grant


• 2001, Awardee: National Vision Grant from the Pre-eclampsia Foundation, for the “Prospective Study to Evaluate the Role of CD3-zeta Expression in Preeclampsia Compared to Normotensive Pregnant Controls”.


1. Martin G, Hose J, Lam G, et al. Organization of Hematopoietic tissue in the Intermolt Lobster. Journal of Morphology. 1993; 216: 65-78. doi: 10.1002/jmor.1052160108
2. Lam G, Stafford R, Thorp JM, Moise KJ, Cairns BC. Use of Nitric Oxide for Primary Pulmonary Hypertension in Pregnancy. Obstet Gynecol. 2001; 98: 895-898.
3. Lam G, Kuller J, McMahon M. Efficacy of MRI and Ultrasound for the Antenatal Diagnosis of Placenta Accreta. J SocGynecolInvestig. 2002; 9: 8-12.
4. Gercel-Taylor C, OConnor S, Lam G, Taylor DD. Shed Membrane Fragment Modulation of CD-3 Zeta during Pregnancy: Link with Induction of Apoptosis. J ReprodImmunol. 2002; 56:29-44. doi:
5. Lam G, Orton S, Subramanyam L, Farb R, Moise KJ. Minimizing Red Cell Contamination while Isolating Mononuclear Cells from Whole Blood – Next Step to Maternal Alloimmunization with Paternal Mononuclear Cells for the Treatment of Severe Hemolytic Disease of the Newborn. Am J Ob Gyn. 2003; 189: 1012-1016. doi:
6. Lam G, Whitecar PW, Orton S, Boggess K, Taylor DD. Evidence for Altered Immunoregulation in Preeclampsia. Am J Ob Gyn. 2003; 189: 843-847.
7. Sarsam S, Elliott J, Lam G. Management of Wound Complications from Cesarean Delivery. Obstet Gynec Surv. 2005; 60: 7-18.
8. Lam G, Johnson D, Robinson C, et al. Antepartum administration of digoxin immune Fab (Digibind) improves renal function in subjects with severe preeclampsia. Hypertens Pregnancy. 2008; 27(4): 422.
9. Adair CD, Buckalew VM, Graves SW, et al. Digoxin Immune Fab Treatment for Severe Preeclampsia. Am J Perinatol. 2010; 27(8): 655-662. doi: 10.1055/s-0030-1249762
10. Dildy GA, Belfort MA, Adair CD, et al. Initial Experience with a Dual-Balloon Catheter for the Management of Postpartum Hemorrhage. Am J ObstetGynecol. 2014; 210(2): 136: e1-e6. doi: 10.1016/j.ajog.2013.09.015