Mary Washington Primary Care

Dr. Cook attended West Virginia University where he earned his undergraduate degree in 1989 and his medical degree in 1993. Dr. Cook completed his internship and family practice residency at Grant Medical Center in Columbus, Ohio.

Dr. Cook is a board-certified family practitioner and joined the practice in 1996.

Education and Experience

Dr. Hernandez graduated in 1986 from the Universidad Nacional Pedro Henriquez Urena in the Dominican Republic. He completed both his internship and family residency in Connecticut and then pursued a fellowship in geriatric medicine at the University of Minnesota. Dr. Hernandez is a board-certified family practitioner and joined the practice in 1993.

Education and Experience

Tanya attended Shenandoah University, receiving her Bachelor of Science degree in 2004 and a Master of Science in Physician Assistant studies in 2006. She is board certified and currently provides care to patients in our acute clinic at our Fredericksburg office. Tanya joined the practice in 2011 and lives with her family in Stafford.

Erin is the newest member of our team at the Fredericksburg office. Erin attended the University of Virginia where she earned her undergraduate degree. For fourteen years, Erin worked as an RN in the ICU, Cardiac Cath lab and emergency department.

During this time, she earned her Master of Science in Nursing from George Washington University and is now a board-certified nurse practitioner. Erin cares for patients of all ages.

When not in the office, Erin enjoys spending time with her husband and 3 daughters, travelling.