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Doctor Maria A. Bogaert
Maria A. Bogaert, MD

Dr. Maria Bogaert is a board-certified dermatologist, dermatological surgeon, and a fellow of the American Academy of Dermatology. Born and raised in the Dominican Republic, Dr. Bogaert graduated summa cum laude from Universidad Nacional Pedro H. Urena. She completed dual residencies in Internal Medicine and Dermatology at the University of Miami School of Medicine, where she also served as chief resident. Dr. Bogaert has been in practice in Winchester, Virginia for over 20 years. She enjoys caring for both adults and children with disorders of the skin, and is interested in general and surgical dermatology.

Doctor Frederick G. Wenzel
Frederick G. Wenzel, MD

Dr. Wenzel graduated summa cum laude from Davidson College and completed his medical degree at Duke University with honors. In addition, he was a basic science research fellow at Harvard University as the recipient of the prestigious Sarnoff Fellowship Program, and was awarded a student research award from the National Institutes of Health. He completed an internship in Internal Medicine and a residency in Dermatology at Johns Hopkins Hospital, and was selected as chief resident in Dermatology during his final year. He has been practicing general and surgical dermatology in Winchester since 1997. His interests include medical dermatology, autoimmune dermatologic disorders, and skin cancer surgery.

Doctor Michael E. Mathieu
Michael E. Mathieu, MD

Dr. Michael E. Mathieu is board-certified both by the American Board of Dermatology and by the American Board of Internal Medicine. He attended Medical School at Howard University in Washington D.C., and afterward completed dual residencies in Internal Medicine and Dermatology at the University of Virginia in Charlottesville. He also earned a fellowship in infectious disease from Harvard Medical School. Dr. Mathieu has practiced dermatology in Winchester, Virginia since 2001. His special interests include skin cancer, pediatric dermatology, and dermatologic manifestations of systemic disease.

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Humza Ilyas, MD

After graduating cum laude from Penn State University, Dr. Ilyas earned his medical degree from Jefferson Medical College in Philadelphia. He then completed his internship in internal medicine at the Western Pennsylvania Hospital in Pittsburgh and his dermatology residency at Albert Einstein College of Medicine in New York City. During his final year of residency, Dr. Ilyas was awarded the honor of chief resident in dermatology.  Dr. Ilyas then completed a fellowship in Mohs Surgery & Procedural Dermatology at the University of Wisconsin.

 

Dr. Ilyas specializes in Mohs surgery and advanced reconstructive techniques.  Dr. Ilyas is a diplomate of the American Board of Dermatology, a fellow of the American Academy of Dermatology, and a member of the American College of Mohs Surgery.  He has published widely and presented his findings at numerous medical conferences. In addition, he has written textbook chapters on nonmelanoma skin cancer for primary care physicians.

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Kaitlin Kersey, DNP, APRN, FNP-C

Kaitlin Kersey is a Family Nurse Practitioner certified by the American Academy of Nurse Practitioners.  A Virginia-native, Kaitlin completed her Bachelor of Science in Nursing at George Mason University graduating magna cum laude and later returned to serve as an adjunct faculty member for the GMU School of Nursing.  After establishing her career as a nurse, Kaitlin attended Frontier Nursing University earning a Master of Science in Nursing and ultimately her Doctorate of Nursing Practice.  Kaitlin values the variety of experience that nursing has afforded her, having cared for diverse patient populations ranging from neonatal through geriatric and in settings from home-health to inpatient hospital care. Kaitlin maintains a patient-centered approach to care and is honored to serve her local community.  When she is not working, Kaitlin enjoys spending time with her family, hiking, biking and cooking.

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Ashley Watterson, DNP, APRN, ANP-BC

Ashley Watterson is a board-certified Nurse Practitioner with over 15 years of combined experience in the healthcare field. She graduated with honors from Shenandoah University with her Bachelor of Science in Nursing in 2007. While practicing as a Registered Nurse on the Post-Surgical/Trauma Unit, she decided to further her education. She obtained her Master of Science in Nursing and completed her Nurse Practitioner training through the University of Cincinnati in 2012. Upon graduating, Ashley obtained her board certification through the American Nurses Credentialing Center (ANCC) as an Adult Nurse Practitioner. She completed her doctoral program in 2022 through Maryville University of St. Louis. Ashley possesses experience in the acute/urgent care setting and primary care. She is looking forward to expanding her knowledge base and skills set with the team at Dermatology Associates.

 

Throughout her time as a Nurse Practitioner, Ashley has maintained active memberships with several national organizations including the ANCC, the American Academy of Nurse Practitioners (AANP), and the Rho Pi, Beta Iota, and Omicron-Iota Chapters of Sigma Theta Tau International Honor Society of Nursing. 

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Megan Armstrong, Aesthetic Nurse

Megan earned her Bachelor of Science degree from James Madison University and is an aesthetic nurse specialist. Megan has over 15 years of experience in the field of cosmetic dermatology and plastic surgery, specializing in aesthetic procedures and dermal fillers. She is extremely passionate about her work and her commitment to providing the highest level of patient care. Patients who have the opportunity to work with Megan appreciate her attention to detail and the natural results she helps them attain. Megan is an active member of the Dermatology Nurses Association. She continues to seek out the latest education and non-surgical innovations. “Developing a patient’s trust and achieving a natural, desired result is my priority.”

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