Our Providers

Thomas Yu, M.D.

Chief Medical Officer

Bethesda

Thomas Yu, M.D. is a board certified dermatologist and fellowship-trained Mohs surgeon. He received his medical degree with honors at the University of Maryland School of Medicine and completed his internship in internal medicine at Johns Hopkins Bayview Medical Center. Dr. Yu received his residency training in dermatology at Columbia University’s St. Luke’s-Roosevelt Medical Center, where he served as Chief Resident. He then completed his fellowship in Mohs Micrographic Surgery and Dermatologic Surgery at Columbia University’s Center for Laser and Dermatologic Surgery. He has been in practice over 16 years. He is the author of multiple articles and book chapters regarding cutaneous oncology, reconstructive surgery and dermatologic surgery.

Joseph Lee, M.D., Ph.D.

Dermatologist

Germantown & Bethesda

Joseph Lee, M.D., Ph.D. is a board certified dermatologist. He received his Ph.D., medical degree and dermatology residency training from the State University of New York at Stony Brook. He teaches at the National Institutes of Health, and has a broad background in skin cancer research and a special interest in surgery. Dr. Lee sees patients in in both Germantown and Bethesda clinics. He has been in practice for over 25 years.

Brendan Pillemer, M.D., Ph.D.

Dermatologist

Germantown

Brendan Pillemer, M.D., Ph.D. is a board certified dermatologist who grew up near Rockville. He comes to Sona Dermatology from a practice in Pittsburgh, PA. Dr. Pillemer received his medical degree and his Ph.D. in Immunology from the University of Pittsburgh. He also completed his residency at the University of Pittsburgh Medical Center. Dr. Pillemer received his undergraduate degree from the University of Michigan and is a member of the American Academy of Dermatology. He sees medical patients of all ages, and has a particular interest in eczema, psoriasis, and other rashes. Dr. Pillemer sees patients in our Germantown office. Dr. Pillemer enjoys travel, scuba diving, and ice hockey. He resides in Gaithersburg with his family.

Nashida Beckett, M.D.

Dermatologist

Bethesda

Nashida Beckett, M.D. is a board certified dermatologist. She joined Sona Dermatology after 7 years in private practice in the Washington D.C. area. Dr. Beckett received her Bachelor of Arts degree from Cornell University and a Master’s degree in Public Health from George Washington University. She received her medical degree from Howard University College of Medicine and performed her internship in internal medicine at Washington Hospital Center. Dr. Beckett completed her dermatology residency at Howard University Hospital, where she served as Chief Resident. Dr. Beckett has been published in professional journals and has presented at numerous national and regional dermatology meetings. She is board certified by the American Board of Dermatology and is a fellow of the American Academy of Dermatology. She has also spent time treating patients abroad in Botswana through the University of Pennsylvania-Botswana Partnership.

Dr. Beckett enjoys practicing general dermatology and treating patients of all ages and skin types. Her special interests include dermatologic surgery and cosmetic dermatology. She believes in the importance of building strong relationships with her patients in order to provide the best care possible. Outside of work, she enjoys traveling and spending time with her husband and two daughters.

Anita Iyer, M.D.

Dermatologist

Bethesda

Anita Iyer, M.D. is a board certified dermatologist and a Diplomat of the American Board of Dermatology. She received her Bachelor of Science degree in Mechanical Engineering from the University of Cincinnati, where she participated in the Co-op program at NASA Lewis Research Center. Dr. Iyer completed her medical degree at the Medical College of Ohio, where she was recognized for her outstanding academic achievements by the Alpha Omega Alpha Medical Honor Society. She completed her internship at Lahey Clinic in Burlington, MA and her residency at Henry Ford Hospital, Department of Dermatology, in Detroit, MI. She has practiced in both Montgomery and Howard Counties since 2002.  

Dr. Iyer prides herself in the quality of care her patients receive. She always strives to treat patients with consideration. She wants her patients to have ample opportunity to discuss their concerns and ask their questions. Dr. Iyer enjoys treating patients of all ages and has focused on general Dermatology, Dermatologic Surgery and Cosmetic Dermatology. Throughout her career Dr. Iyer has enjoyed mentoring young graduates with aspirations to continue to further medical degrees.  

Shane O'Neil, PA-C

Dermatology Clinician

Charlotte

Shane O'Neil is a board-certified Physician Assistant from Binghamton, NY with 5 years of dermatology experience. He is married to his wife KC, who is also a physician assistant. Shane's hobbies include exercise, playing and watching sports, reading, traveling, and spending time with friends and family. Having recently relocated from the Washington, D.C. area, Shane is happy to now call Charlotte home. "I strive to provide easy access and excellent care so my patients can leave our office with a smile on their face."

Amalie Derdeyn, MD

Dermatologist

Richmond

As a Board-Certified Dermatologist, Dr. Derdeyn has practiced medical, surgical, and cosmetic dermatology in the Central Virginia area for over 16 years.

Dr. Derdeyn was named a Bowman Scholar for Clinical Excellence from UVA’s School of Medicine. She completed her residency in Dermatology, where she served as Chief Resident, at the University of Virginia Medical Center.

Dr. Derdeyn believes that healthy skin is a reflection of overall wellness, and strives to ensure her patients feel comfortable and confident in their skincare journey.