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Our Providers

The brief descriptions below are designed to familiarize you with our staff's training, professional credentials, and work experience.

Vishal Bhagat, MD FACG

Dr. Bhagat completed his medical education at Gujarat University, India in 2000.  His first Internal Medicine residency was completed at Gujarat University also.  Another residency in Internal Medicine was completed at the State University of New York (SUNY) at Buffalo in 2005 during which he served an additional year as Chief Resident in Medicine.  He subsequently completed a Fellowship in Liver Diseases at the University of Miami in 2007 before returning to SUNY Buffalo for his Fellowship in Gastroenterology which was completed in 2010.

Dr. Bhagat is Board-certified in Gastroenterology and Hepatology.  He joined Gastroenterology Consultants of Southwest Virginia in October 2010. Dr. Bhagat serves as the Director of Clinical Research and Investigator for clinical trials in Fatty Liver Disease.  His other interests include Screening Colonoscopy, Gastroesophageal Reflux Disease (GERD) and Irritable Bowel Syndrome (IBS).

Michael Lee, DO

Dr. Lee received a B.A. in biology from West Virginia University in Morgantown, West Virginia. He received a D.O. (Doctor of Osteopathic Medicine) from West Virginia School of Osteopathic Medicine.

Dr. Lee completed a Rotating Internship at Community General Osteopathic Hospital in Harrisburg, Pennsylvania a three year Internal Medicine Residency at Allegheny General Hospital in Pittsburgh, Pennsylvania and a Gastroenterology Fellowship at Allegheny General Hospital.

Dr. Lee joined Gastroenterology Consultants of Southwest Virginia on July 1, 2007 and resides in Roanoke with his family.

Lee Meyers, III, MD, FACG

Dr. Meyers received a B. A. from Haverford College in Haverford, Pennsylvania. He completed medical school at University of Maryland Medical School in Baltimore, Maryland.

His internship and residency were completed at University of North Carolina Medical School in Chapel Hill North Carolina. Dr. Meyers completed a Fellowship in Liver Disease and a Fellowship in Digestive Diseases at University of North Carolina Medical School. His final year of Fellowship was spent in extensive training in therapeutic biliary endoscopy. He also functioned as an attending physician on consultation service and in the Endoscopy Unit. He is Board Certified by the American Board of Internal Medicine Gastroenterology.

Dr. Meyer’s joined Gastroenterology Consultants of Southwest Virginia in August, 1995
and he resides in Roanoke with his family.

Dennis B. Weiserbs, MD, FACG

Dr. Weiserbs grew up in the Northeast and attended the University of Pennsylvania in Philadelphia for both his undergraduate and medical degrees. He obtained additional training in Internal Medicine and Gastroenterology/Hepatology at Virginia Commonwealth University/Medical College of Virginia, where he later served on the medical school faculty. In 1987, Dr. Weiserbs moved to Roanoke and established Gastroenterology Consultants of Southwest Virginia with Dr. John Morgan.

Dr. Weiserbs has had appointments as Clinical Associate Professor of Medicine at the University of Virginia and Virginia Tech-Carilion Medical School.  He is board certified in Internal Medicine and Gastroenterology.


Nirish S. Shah, MD

Dr. Shah received his medical degree from BJ Medical College, Gujarat University in Ahmedabad, India in December, 2001.  He completed a Medical Residency between July 2002 and June 2005 in Internal Medicine at Harbor Hospital in Baltimore, Maryland and was Chief Resident from July, 2004 thru June, 2005.  Dr. Shah completed a Fellowship Program in June 2011 at University of Maryland, Baltimore, Maryland.

Dr. Shah completed Board Certification in Internal Medicine in 2005 and was certified in Gastroenterology by the American Board of Internal Medicine in 2012.  He received training in advanced endoscopy at the Asian Institute of Gastroenterology in Hyderabad, India

Dr. Shah joined Gastroenterology Consultants of Southwest Virginia in February, 2014 and resides in Roanoke, Virginia with his family.

Dr. Shah serves as the Medical Director of the Endoscopy Center of Southwest Virginia.

Megan C. McDonald, PA-C

Megan McDonald, PA-C completed a Bachelors of Science Degree at Roanoke College in Salem, Virginia where she was listed on the Faculty List of Distinguished Students, Who's Who Among Students in American Universities and Colleges and was the recipient of multiple scholarships.

Megan received a Bachelors of Science in Physician Assistant studies at Jefferson College of Health Sciences in Roanoke, Virginia where she was listed on the President's List and was a member of the American Association of Physician Assistants and Virginia Association of Physician Assistants. She has completed Certification as a Physician Assistant.

Megan joined Gastroenterology Consultants of Southwest Virginia in November, 2008 and resides in the Roanoke region with her family.


Debra Bright, FNP

Debra Bright, FNP completed a Bachelors of Arts Degree in Psychology at Roanoke College in Salem, Virginia.  She completed a Bachelors of Nursing and Masters of Nursing Degrees at Radford University in Radford, Virginia.

Debra is ANCC Board Certified as a Family Nurse Practitioner.  She has extensive experience in the Roanoke Valley having worked for primary care offices, ambulatory surgery center, long term care, and the Veterans Administration Medical Center in Salem, Virginia.

Debra joined Gastroenterology Consultants of Southwest Virginia on February 1, 2016 and resides in Roanoke, Virginia with her family where she is active in educational events in the community.

Mary K. "Kathy" Brooks, CNP

Kathy Brooks joined Gastroenterology Consultants of SWVA on October 1, 2017 as a Certified Nurse Practitioner. She received her Bachelor of Science in Nursing from The Ohio University and a Master of Science in Nursing from the University of Cincinnati. Kathy relocated to the Roanoke Valley with her family in September, 2017 and has previously been employed in Ohio. She holds accreditation from the American Nurses Credentialing Center as an Adult Nurse Practitioner ANP-BC. In her spare time, Kathy enjoys singing, acting and Zumba.