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Clinical Providers

Satinder Gill, MDsatinder

Dr. Gill is board certified in Gastroenterology. Dr. Gill has been recognized multiple times as one of America’s Top Physicians in gastroenterology by the Consumer Research Council. He has also received the Patient’s Choice Award. He has served as Chairman of INOVA Loudoun Hospital Division of Gastroenterology and Vice Chairman of Department of Medicine. He also has served on committees for the American College of Gastroenterology.

Dr. Gill received his gastroenterology training from Medical College of Virginia/VCU Health systems. He received his medical training at Harbor Hospital/University of Maryland. He was also selected to be Chief Resident in Internal Medicine. As an undergraduate at the University of Virginia, he also had the honor of being a Lawn Resident at Thomas Jefferson’s original academic village.

Dr. Gill has numerous research publications in scientific journals in gastroenterology, molecular biology/cancer research, and internal medicine. He has served as a consultant and on advisory boards for Hospital systems, American College of Gastroenterology and Pharmaceutical industry. He is married with two young children and enjoys time with his family.

Hiwot Desta, MDdesta

Dr. Desta is board certified in Gastroenterology. Dr. Desta has had numerous scientific publications in chemistry, surgical oncology, and cardiology. She serves as the Medical Director of Loudoun Endoscopy Group, LLC where she oversees clinical excellence in endoscopy.

Dr. Desta received her gastroenterology training from Ohio State University Medical Center. She received her medical training from University of Virginia School of Medicine where she received an Academic Advancement Scholarship.

As an undergraduate at Sweet Briar College, Dr. Desta received the James Lewis Howe Award in Chemistry. She also graduated with honors and was recognized multiple times on the Dean’s List. She also has served as an assistant Editor for multiple scientific journals.

Rahul Kataria, MD

Rahul Kataria, MD is board certified in Gastroenterology. Dr. Kataria has had multiple research publications in peer-reviewed gastroenterology journals focusing on diseases such as gastroesophageal reflux disease, Barrett’s Esophagus, and pelvic floor disorders, as well as nutritional-based treatments for gastrointestinal diseases.

Dr. Kataria received his gastroenterology training from Temple University Hospital, where he spent an additional year specializing in gastrointestinal motility diseases. He completed his medical residency at Jackson Memorial/University of Miami Hospital and medical school at Temple University School of Medicine. He graduated from Northwestern University with a degree in biomedical engineering.

His areas of interest include esophageal diseases including eosinophilic esophagitis, gastroesophageal reflux disease, and Barrett’s Esophagus, celiac disease, nutrition, hemorrhoids, and pelvic floor disorders.

Hani Sabahi, MD

Dr. Sabahi is a Board-certified gastroenterologist. After obtaining his medical degree from Jordan University of Science and Technology, he completed Internal Medicine residency training and a Gastroenterology fellowship at the University of South Alabama. 

He was appointed assistant Professor of Medicine in the Division of Gastroenterology at the University of South Alabama, where he taught and supervised physicians in training.

Dr. Sabahi has authored several abstracts and journal articles in the field of clinical gastroenterology, and presented at national gastrointestinal society meetings. He has held memberships in the American College of Gastroenterology, American Gastroenterological Association, and American Society for Gastrointestinal Endoscopy.

Prior to moving to Loudoun, Dr. Sabahi was practicing in Fairfax and Reston area.

His clinical areas of interest include Inflammatory Bowel Diseases, gastroesophageal reflux disease (GERD), anorectal conditions including hemorrhoids management, and colon cancer screening.

Driven by his dedication to patient care, Dr. Sabahi is thrilled to continue serving the Loudoun community. With his extensive experience and expertise in gastroenterology, he is deeply committed to delivering exceptional care and assisting patients in achieving their health goals.

Colleen Nappi, CFNPcolleen

Colleen grew up in Northern Virginia. She graduated from Virginia Tech in 1988 with a Bachelors degree in Institutional Management.. She went on to pursue her nursing degree from Georgetown University. After 20 years as an operating room nurse she achieved her MSN with a focus on Family Practice from Shenandoah University. She is board certified by the AANP to treat patients across the lifespan. She has worked in both Primary Care setting as well as Otolaryngology before joining the Colon, Stomach, and Liver Center in 2014. She enjoys all aspects of providing care for patients in the GI/Hepatology setting. She resides on a farm in the Shenandoah Valley where she enjoys free time with her family including 6 children and several animals. She is a member of the VCNP where she serves as a regional officer planning educational events for the Northern Shenandoah Valley Chapter.

Ndeye Lissa Kone, PA – C

N. lissa PA graduated from  Sophie Davis School of Biomedical Education in NYC. Before joining our practice in 2018, Lissa worked in Primary care, geriatrics and urgent care. In her spare time Lissa enjoys living a active life and spending time with her family. She is fluent in french.


Linda Delacourt, MD

Dr. Delacourt received her bachelor’s degree from Georgetown University in 1996 with a major in psychology and a minor in biology.  She received her medical degree from the Georgetown University School of Medicine in 2000, before moving to Chicago to complete her residency in anesthesiology from the University of Chicago.

She worked for 4 years in Jacksonville Beach, Florida in a community hospital and came to Virginia in 2009 to join our practice as the head of anesthesia.  She enjoys travel with her husband and teenage boys, and is an avid reader.

Renny Griffith, MD

Dr. Griffith is a board certified anesthesiologist. He was the founder and owner of Safe Sedation, Inc (1999) which was an ambulatory anesthesia company that was acquired by North American Partners in Anesthesia (NAPA) in 2018. Dr. Griffith currently serves as a clinician and business consultant in the field of ambulatory anesthesia.

Dr. Griffith completed his anesthesia residency at the New York Hospital – Cornell Medical Center. He attended medical school at the Temple University School of Medicine and completed his undergraduate studies at the University of Virginia.

Dr. Griffith is also a fellowship trained pediatric anesthesiologist. He specializes in ambulatory anesthesia with a focus on regional anesthesia. He is married and has three children.

Grace “Lee” Dorsch, MD

Lee is the owner of Office Anesthesia Services, LLC and has been practicing anesthesia for 28 years. She has been practicing solely office based anesthesia since 2009.

She was the co-chair of the Society of Ambulatory Anesthesia’s Office Based Anesthesia Committee from 2020-2022. She and her husband of almost 34 years live in Northern Virginia. They have 5 children.


Soheila Yadrandji, MDyadrandji

Dr. Yadrandji is a diplomat of the American Board of Pathology in both clinical and surgical pathology. She serves as the medical director of On Point Pathology Laboratory at Loudoun Endoscopy Group LLC. Dr. Yadrandji received her combined AP/CP training from Wayne State University Medical Center in Detroit, Michigan. She has more than 20 years of experience in pathology, and has worked as an assistant professor precepting medical students and interns. She is also the recipient of Salute to Service Award from the Medical Society of Virginia Foundation, and has numerous scientific publications in which she has presented both nationally and internationally.


Gerry Alcantara, CRNA, MS

Gerry graduated from the University of Santo Tomas in Manila, Philippines with a Bachelor of Science in Nursing degree in 1989. He worked as a Critical care nurse at Beth Israel Hospital in Newark, New Jersey. In 1997, he received his Master of Science degree Major in Anesthesia from Columbia University in New York. He moved to Northern Virginia where he began his career as a Certified Registered Nurse Anesthetist (CRNA).

He is a proud parent of three wonderful children and an avid traveler. He finds solace and adventure in the great outdoors, particularly through hiking.


Brooke Keenan RDN, LD

Brooke is a Registered Dietitian Nutritionist who is licensed in MD, DC and DE. Brooke helps individuals with gastrointestinal disorders reach their health goals through sustainable changes that work with their lifestyles. She has completed the Monash University “Low FODMAP diet for IBS” online training course for health professionals in November 2020. She works with gastrointestinal (GI) disorders, including but not limited to IBS, constipation, GERD, IBD, celiac disease, diverticulitis, food allergies and intolerances.

Brooke has a passion for nutrition and helping her clients reach their nutrition goals in a healthy, well-balanced way. She endeavors to help people establish their own finest version of health and wellbeing using a practical and positive approach. Brooke wants to help her clients understand their diagnosis while maintaining and encouraging a healthy relationship with food.

When Brooke is not talking about all thing nutrition, she is busy with her husband, two sons and two adorable dogs.