Medical Examiners
Dr. Geoffrey Smith
Chief Medical Examiner
Dr. Geoffrey Smith earned his medical degree from the University of Auckland, New Zealand, graduating in 1984 and practicing primary care and emergency medicine. He emigrated to the United States in 1991, and from 1992-1995, undertook residency in Anatomic Pathology at Emory University Affiliated Hospitals.
Fellowship training in Forensic Pathology at the Fulton County Medical Examiner’s Office from 1995-1996 was followed by work as an Associate Medical Examiner/Deputy Chief Medical Examiner at the Fulton County Medical Examiner’s Office (1996-1997, 2004-2013), the Georgia Bureau of Investigation State Medical Examiner’s Office (1997-2004), and the Dekalb County Medical Examiner’s Office (2013-2022).
Dr. Smith is certified by the American Board of Pathology in Anatomic Pathology (1995) and Forensic Pathology (1997) and has a special interest in the education and training of Pathology residents and fellows.
Dr. Lora Darrisaw
Director of Pediatric Forensic Pathology
Dr. Lora Darrisaw completed her undergraduate degree from Marquette University in Milwaukee, Wisconsin, in 1985. She received her medical degree from the Medical College of Wisconsin in Milwaukee, Wisconsin, in 1995.
She completed her pathology residency at the Medical College of Wisconsin Affiliated Hospitals in Milwaukee, Wisconsin, in 1999. Dr. Darrisaw moved on to a fellowship in Pediatric Pathology at Texas Children's Hospital, Baylor College of Medicine in Houston, Texas. Following that, she finished another fellowship, this one in forensic pathology, at the Medical College of Georgia in Augusta, GA, in conjunction with the Georgia Bureau of Investigation in 2002. Dr. Darrisaw joined the Georgia Bureau of Investigation Medical Examiner's Office as an associate medical examiner in 2002.
Dr. Darrisaw specializes in pediatric pathology and the evaluation of fatal and non-fatal pediatric injuries.
Dr. Steven Atkinson
Associate Medical Examiner
Dr. Steven Atkinson completed his undergraduate degree from Georgia Tech in Atlanta, Georgia, in 1996. He received his medical degree from the Medical College of Georgia in Augusta, Georgia, in 2000. He completed a residency in anatomic and clinical pathology at the University of Florida in Gainesville, Florida. He also completed a forensic pathology fellowship at Emory University School of Medicine in Atlanta, Georgia. Dr. Atkinson joined the Georgia Bureau of Investigation in 2008 as an associate medical examiner.
Dr. Michelle DiMarco
Associate Medical Examiner
Dr. Michelle DiMarco completed her undergraduate studies in biology at Florida State University in 2011 and acquired her medical doctorate from the Medical University of South Carolina in 2015. Following completion of an anatomic and clinical pathology residency at Emory University in 2019, she completed a pediatric pathology fellowship at Children’s Healthcare of Atlanta/Emory University in 2020. A second fellowship in forensic pathology was completed with the Georgia Bureau of Investigation, where she joined as an associate medical examiner in 2021.
Dr. Rachel Geller
Associate Medical Examiner, Forensic Pathology Fellowship Program Director
Dr. Rachel Geller received her undergraduate degree from the University of Virginia in 2005 and earned her Doctor of Medicine from Wake Forest University School of Medicine in 2013. She completed a residency in Anatomic and Clinical Pathology at Emory University in 2017, and then she completed a Forensic Pathology fellowship at the Fulton County Medical Examiner’s Office through Emory University in 2018. Dr. Geller was employed by the Fulton County Medical Examiner’s Office and the DeKalb County Medical Examiner’s Office before joining the Georgia Bureau of Investigation as the Forensic Pathology Fellowship Director in May of 2022.
During the COVID-19 pandemic, Dr. Geller was also employed by Emory University at Grady Hospital, where she contributed to autopsy services and research. She continues to be affiliated with Emory University as an Adjunct Assistant Professor, providing instruction and training to Emory medical students and residents as a Forensic Pathology course director. The Forensic Pathology Fellowship at the Georgia Bureau of Investigation is offered in partnership with the Medical College of Georgia, Augusta University, where Dr. Geller is a Clinical Assistant Professor.
Dr. Keith Lehman
Associate Medical Examiner
Dr. Keith Lehman graduated from Wake Forest University in Winston-Salem, North Carolina, in 1989 and received his medical degree from the Medical University of South Carolina in Charleston, South Carolina, in 1993. He went on to complete his residency in anatomic and clinical pathology at the University of North Carolina Hospitals in Chapel Hill, North Carolina, in 1998. During this time, Dr. Lehman also completed a fellowship at the Office of the Chief Medical Examiner in Chapel Hill, North Carolina. He then joined the Fulton County Medical Examiner's Office for another fellowship, which ended in 1999.
Dr. Lehman joined the staff of the Georgia Bureau of Investigation Medical Examiner's Office in 1999 as an associate medical examiner.
Dr. Sandra Reynolds
Associate Medical Examiner
Dr. Reynolds received her undergraduate degree in biology from Lander University in Greenwood, South Carolina, in 1999 and earned her medical degree from the University of South Carolina School of Medicine in 2004. She completed her anatomic and clinical pathology residency at East Carolina University in 2008. Dr. Reynolds then completed a one-year fellowship in Forensic Pathology at the Office of the Chief Medical Examiner in Richmond, VA.
Dr. Reynolds was employed as an Associate Medical Examiner by Forensic Medical in Nashville, TN, before joining the GBI in 2014.
Dr. Samantha N. Mattox
Associate Medical Examiner
Dr. Samantha N. Mattox completed her undergraduate degree in biology at Columbus State University in 2010 and acquired her medical doctorate degree from the Alabama College of Osteopathic Medicine in 2018. Following completion of an anatomic and clinical pathology residency at the Medical College of Georgia/Augusta University in 2022, she completed a one-year fellowship in forensic pathology with the Georgia Bureau of Investigation. Dr. Mattox joined the Georgia Bureau of Investigation as an associate medical examiner in 2023.
Dr. Romana Mayer
Associate Medical Examiner
Dr. Romana Mayer received her undergraduate degree from Emory University in Atlanta, Georgia, in 2014. She stayed in Atlanta to earn her medical doctorate from Morehouse School of Medicine in 2018. She completed a residency in Anatomic and Clinical Pathology at the University of Maryland Medical Center in Baltimore, Maryland, in 2022. She returned to Atlanta, Georgia, to complete her Forensic Pathology Fellowship at the Georgia Bureau of Investigation in 2023 and joined the GBI as an Associate Medical Examiner that same year.
Dr. Robin Moiseff
Associate Medical Examiner
Dr. Robin Moiseff obtained her undergraduate degree in physiology and neurobiology at the University of Connecticut, graduating in 2012. She then attended the University of Connecticut School of Medicine, graduating in 2016, followed by anatomic and clinical pathology residency training at Dartmouth Medical Center in New Hampshire. She completed her forensic pathology fellowship at the Travis County Medical Examiner’s office in Austin, Texas, followed by a cytopathology fellowship at the Medical University of South Carolina. She is board certified in anatomic and clinical pathology, forensic pathology, and cytopathology. She worked as a forensic pathologist at Forensic Medical in Beaumont, Texas, before joining the GBI Coastal Lab in June 2024.
Dr. Taylor Sliker
Associate Medical Examiner
Dr. Taylor Sliker received her undergraduate degree in nutrition science from the University of Georgia in Athens, Georgia, in 2014 and obtained her medical doctorate degree from Mercer University School of Medicine in Savannah, Georgia, in 2019. She later completed her anatomic and clinical pathology residency training at Augusta University in 2023. Upon completion of her forensic pathology fellowship at the Georgia Bureau of Investigation in 2024, Dr. Sliker joined the GBI as an associate medical examiner.
Dr. Kari Broder
Associate Medical Examiner
Dr. Kari Broder received her undergraduate degree from Washington University in St. Louis in 2014, followed by a year of research in New York City with the Hospital of Joint Diseases. She earned her medical degree from Arizona College of Osteopathic Medicine in 2019 and then completed a residency in Anatomic and Clinical Pathology at Emory University in 2023, serving as chief resident during her final year. Dr. Broder then completed her forensic pathology fellowship at the Georgia Bureau of Investigation in 2024, after which she joined as an associate medical examiner.
Dr. Mehrnoosh Ghandili
Associate Medical Examiner
Dr. Mehrnoosh Ghandili completed medical school at Guilan University of Medical Sciences in Iran. Afterward, she spent nearly three years conducting research at the University at Buffalo. She then completed her Anatomic and Clinical Pathology residency at Wake Forest University School of Medicine in 2024. She went on to complete a one-year fellowship in Forensic Pathology with Richmond Chief Medical Examiner’s Office in 2025, followed by a one-year fellowship in Cardiovascular Pathology at Cleveland Clinic Foundation in 2026, after which she joined the Georgia Bureau of Investigation as an associate medical examiner.