Doctors & Staff


Rebecca Bae, P.A.

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Rebecca is a native Floridian, graduating summa cum laude from the University of Florida with a background in health science and Spanish. She completed her training as a physician assistant (PA) at Eastern Virginia Medical School from where she graduated with honors and was given the Eugene A. Stead Award, presented to one graduate who exhibited overall excellence in both clinical and didactic settings.

Before PA school, she worked in a psycho-oncology research lab studying the biopsychosocial interactions of gynecologic cancers. It was here that she became passionate about the mind-body connection and how physical health heavily influences mental well-being and vice versa. She practices medicine with this holistic philosophy of care. Rebecca has long been interested in gastrointestinal disorders for their vast interaction with every other body system and power to influence quality of life. Her training in this realm took place in the general surgery setting, emergency department, oncology unit at Johns Hopkins University, inpatient and outpatient internal medicine, and (her favorite) Gastrointestinal Specialists, Inc. as a PA student. She is excited to work with such a wonderful group of practitioners.

In her free time, Rebecca enjoys outdoor activities and playing board/card games with her wonderful husband. She also delights in her church and missions involvement and is long-time adult and pediatric hospice volunteer.

Stephanie B. Herndon, ACNP

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Stephanie Herndon has been an Acute Care Nurse Practitioner since 2004. She has worked in gastroenterology since 2011 and joined GSI in 2014. She works closely with Drs. Michael Farrell, William Brand, and Ben Bradenham at both the Henrico Doctor’s Forest and Parham Doctor’s Hospital locations, seeing both office patients and inpatients.

Stephanie received both her undergraduate and master’s degrees from Virginia Commonwealth University. Prior to discovering her passion for gastroenterology, she worked as a nurse practitioner in various other areas, including pain management, occupational health, and interventional radiology. Before becoming a nurse practitioner, she spent 3 years as a registered nurse in the emergency room at Henrico Doctor’s Forest, where she gained great experience in the care of acutely ill patients. She is a member of the Virginia Council of Nurse Practitioners and the American Academy of Nurse Practitioners and has served as a preceptor for the School of Nursing at Virginia Commonwealth University.

Born and raised in Richmond, Stephanie is the proud mother of one boy. In her free time, she enjoys shopping, reading, listening to music, cooking/baking, and spending time with her family.

Mandi M. Wolfe, FNP

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Mandi Wolfe joined GSI as a nurse practitioner in 2013. She works at St Francis hospital and office with Drs. Ramy Eid and Diego Baltodano.

She received her master’s degree in nursing at the University of Alabama in Huntsville, Alabama, specializing in family medicine. Prior to joining GSI, Mandi worked for a large GI practice in South Carolina for several years. She has also worked as an RN in the cardiac ICU/cardiac cath lab and neuro/trauma ICU.

Originally from Alabama, Mandi has called the Richmond area home for the past couple of years. She is happily married and the mother of two young girls. She enjoys reading, baking, and knitting in her free time.

Ashley L. Foster, ACNP-BC

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Ashley L. Foster has been an Acute Care Nurse Practitioner since 2010. She joined GSI in 2015 and works with Drs. Irvin Seeman, Souheil Abou-Assi, Andy Thanjan and Jayant Talreja at the St. Mary’s location, seeing both inpatients and office patients.

Ashley received her initial undergraduate degree from James Madison University and then attended Virginia Commonwealth University where she received both a second undergraduate degree in Nursing and her master’s degree in Nursing. Before joining GSI, she worked at VCU Medical Center as an NP in the Cardiac Surgery ICU and prior to graduating with her master’s, she worked as an RN for 5 years in the Surgery Trauma ICU, also at VCU Medical Center. Both positions enabled her to gain valuable experience treating acutely ill patients.

She enjoys teaching and is an adjunct faculty member at VCU School of Nursing and has previously been the Acute Care NP Program’s Concentration Coordinator. She is a regular preceptor of NP students and is an active member of the Virginia Council of Nurse Practitioners and various other professional organizations.

She is the proud (and busy) mom of boy/girl twins and is enjoying motherhood. She also volunteers as a Paramedic with Tuckahoe Volunteer Rescue Squad where she has been a member for over 15 years. In her spare time, she enjoys reading, VCU Basketball and music, especially attending live concerts of her favorite bands.

Laura L. Koon, PA

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Laura Koon joined GSI as a Physician Assistant in 2010. She works at the Mechanicsville office with Dr. Duckworth, Dr. Kahn and Dr. Feder.

She received both her bachelor’s in Health Sciences and her master’s Physician Assistant degree at Duquesne University in Pittsburgh, Pa. Prior to joining GSI, Laura worked in primary care in a medically underserved area of North Carolina. Being a certified physician assistant, Laura is required to maintain a working knowledge of general medicine, but she has made gastroenterology her specialty and belongs to several gastrointestinal associations.

Laura was born and raised in central Pennsylvania, but she has happily called Richmond her home since she moved here three years ago. She is the proud mother of two boys and one girl. She enjoys camping and fishing, relaxing with a good book, cooking and trying new recipes, and taking weekend trips to see family and friends.

Elizabeth P. Adams, ACNP

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Elizabeth Adams has been an Acute Care Nurse Practitioner with GSI since 2005, working primarily with Dr. Rufus Davis and Dr. Henry Ellett.

She received both her undergraduate and master’s degrees from Virginia Commonwealth University, specializing in the care of hospitalized patients. However, she has adjusted well to caring for both hospital in-patients and office patients. Before joining our practice, Elizabeth spent five years as an RN at VCU Medical Center, where she cared for surgical and trauma patients.

Born and raised in Richmond, she is happily married and a busy mother of three children (one girl and identical twin boys). Though free time is a rarity for her, she enjoys reading, traveling and photography.

Elizabeth A. Bowers, NP

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Elizabeth Bowers has been a Family Nurse Practitioner with GSI since 2002, working primarily with Drs. Stephen Clement, Ramy Eid and Diego Baltadano.

Her specialty focuses on care of the individual from birth through death in a holistic approach to treatment and the prevention of disease. Since becoming a Nurse Practitioner, she has focused exclusively on gastroenterology with continuing education and seminars on a regular basis. Prior to joining our practice, Elizabeth spent 10 years as an RN in the Richmond, Va., and Philadelphia, Pa., regions caring for intensive care, coronary care and pediatric ICU patients.

Born in the Philadelphia area and raised in the Poconos, Elizabeth has called the Richmond area her home for the past 20 years. She is happily married and a busy mother of a girl and a boy. In her limited free time, she enjoys reading, cooking, Tae Kwon Do, visiting family and friends, and gardening.