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Sees Patients At: Bel Air, Pikesville, Elkton, Westminster, and Towson-GBMC, MD

P. Andrew Rivera, MD, RPVI, is a board-certified vascular Surgeon who joined Vascular Surgery Associates, LLC, in 2022. A Texas native, he completed his undergraduate studies in Music Composition at Baylor University and obtained a Master's degree in Music Composition from the University of North Texas.

Dr. Rivera then received his Medical Doctorate from the University of Texas McGovern Medical School in Houston, Texas and stayed on as a general surgery intern. His surgical residency was completed at the University of Tennessee Health Science Center at Nashville, where he gained experience in general and vascular surgery.

Subsequently, he completed a vascular surgery fellowship at Ochsner Health in New Orleans, Louisiana. There Dr. Rivera gained considerable experience in treating patients with end-stage renal disease, peripheral vascular disease, cerebrovascular disease, and complex aneurysm disease with both open and endovascular techniques.

Dr. Rivera has performed research in outcomes of cerebrovascular interventions using machine learning, and has won the SAVS Founders Award in 2022.

Sees Patients At Westminster, MD

Tammer Elmarsafi, DPM, FACFAS, DABPM, is a dual board certified and fellowship trained podiatric surgeon at Vascular Surgery Associates, LLC, in Westminster, Maryland.

Dr. Elmarsafi completed his medical school training at the New York College of Podiatric Medicine in 2016. After completing his residency training at MedStar Washington Hospital Center, a Level 1 trauma center, he went on to complete his fellowship at Georgetown University Hospital, which afforded him the title of Assistant Professor at the Georgetown School of Medicine Department of Plastic Surgery. 

Dr. Elmarsafi specializes in treating all aspects of the foot and ankle. Having specialized training and expertise in complex lower extremity pathologies, he has given many national and international lectures on topics related to vascular and diabetes-related complications. In addition, he has published extensively in peer-reviewed journals and has co-authored several textbooks on a myriad of foot and ankle-specific subjects. 

He is a highly skilled surgeon whose philosophy revolves around caring for all aspects of his patients, not only their lower extremity problems. Dr. Elmarsafi provides care to patients of all age groups, and complexity, and welcomes new patients and second opinions. 

Sees Patients At: Bel Air, Towson-SJMC, and Westminster, MD

Andre Biuckians, MD, FACS, is a board-certified vascular surgeon at Vascular Surgery Associates, LLC. He provides a variety of vascular services to patients in Bel Air and Towson-SJMC, Maryland.

Dr. Biuckians joined the team at Vascular Surgery Associates in 2008 and is a graduate of The George Washington University in Washington, DC. He received a Master of Public Health from Boston University in Massachusetts and a Doctor of Medicine from the University of Massachusetts Medical School in Worcester. He completed his surgical residency at Beth Israel Deaconess Medical Center, the teaching hospital of Harvard Medical School, and he pursued a vascular fellowship at Eastern Virginia Medical School in Norfolk. 

Dr. Biuckians has co-authored several publications related to the treatment of deep vein thrombosis and angioplasty for lower extremity claudication. He is a Fellow of the American College of Surgeons and is an Assistant Clinical Professor of Surgery at the University of Maryland School of Medicine. He currently serves as the director of the vascular lab at VSA and the division chief of vascular surgery at the University of Maryland St. Joseph Medical Center.

Sees Patients At: Bel Air, Elkton, and Westminster, MD 

Richard Bafford, MD, FACS, is a board-certified vascular surgeon at Vascular Surgery Associates, LLC, serving patients in Bel Air and Elkton, Maryland. Dr. Bafford has been with the practice since 2013. 

Dr. Bafford was born and raised in the Baltimore metropolitan area. He is a graduate of Loyola University New Orleans and received a Master of Science in Public Health from Tulane University School of Public Health and Tropical Medicine in New Orleans, Louisiana. 

Afterward, he completed a doctor of medicine from Tulane University School of Medicine. His surgical residency and vascular surgery fellowship were completed at the Brigham and Women’s Hospital, a teaching affiliate of Harvard Medical School, in Boston, Massachusetts. 

Dr. Bafford is the author of multiple scientific and clinical papers in the field of vascular surgery. He is a fellow of the American College of Surgeons and an active member of the Society for Vascular Surgery and the Society for Vascular Ultrasound.

Sees Patients At: Columbia, Ellicott City, and Towson-GBMC, MD

Michael Osgood, MD, is a board-certified vascular surgeon at Vascular Surgery Associates, LLC. Dr. Osgood sees patients in our Ellicott City, and Greater Baltimore Medical Center offices. Dr. Osgood is currently the Chief of Vascular Surgery at Greater Baltimore Medical Center in Towson, Maryland. He joined the practice in 2017. 

Dr. Osgood received a Bachelor of Science at Davidson College in North Carolina. Dr. Osgood then received his Doctor of Medicine from Emory University in Atlanta, Georgia. Dr. Osgood then completed his surgical residency at Vanderbilt University Medical Center in Nashville, Tennessee, where he also completed a research fellowship in vascular surgery. Dr. Osgood then completed a vascular surgery fellowship at The Johns Hopkins Hospital in Baltimore, Maryland. During his residency and fellowship, Dr. Osgood presented research in several national and regional meetings. 

Throughout his career, Dr. Osgood has authored multiple journal articles and book chapters on diverse subjects, including the endovascular treatment of abdominal aortic aneurysms, venous reconstruction in oncologic surgery, and endovascular carotid artery intervention.

Dr. Osgood is board certified to practice vascular surgery by the American Board of Surgery. Dr. Osgood is also a Certified Wound Specialist Physician by the American Board of Wound Management. In addition, he holds the Registered Provider in Vascular Interpretation (RPVI) certificate.

Sees Patients At: Bel Air, Pikesville, Elkton, Westminster, and Towson-GBMC, MD

P. Andrew Rivera, MD, RPVI, is a board-certified vascular Surgeon who joined Vascular Surgery Associates, LLC, in 2022. A Texas native, he completed his undergraduate studies in Music Composition at Baylor University and obtained a Master's degree in Music Composition from the University of North Texas.

Dr. Rivera then received his Medical Doctorate from the University of Texas McGovern Medical School in Houston, Texas and stayed on as a general surgery intern. His surgical residency was completed at the University of Tennessee Health Science Center at Nashville, where he gained experience in general and vascular surgery.

Subsequently, he completed a vascular surgery fellowship at Ochsner Health in New Orleans, Louisiana. There Dr. Rivera gained considerable experience in treating patients with end-stage renal disease, peripheral vascular disease, cerebrovascular disease, and complex aneurysm disease with both open and endovascular techniques.

Dr. Rivera has performed research in outcomes of cerebrovascular interventions using machine learning, and has won the SAVS Founders Award in 2022.

Sees Patients At: Columbia, Ellicott City, Pikesville, and Westminster MD

Yi Zhou, MD, FACS, is a board-certified vascular surgeon at Vascular Surgery Associates, LLC, in Columbia, Ellicott City, and Pikesville, Maryland,. Dr. Zhou aims to provide high-quality and individualized care to his patients.

Born and raised in China, Dr. Zhou moved to the United States to pursue his education. He completed his college education in Kentucky.

Dr. Zhou obtained his medical degree from SUNY Upstate Medical University in Syracuse, New York. Followed by general surgery residency training at Albany Medical Center (Albany Med) in Albany, New York. He then pursued a two-year vascular surgery fellowship at Geisinger Medical Center in Danville, Pennsylvania.

During his residency and fellowship training, Dr. Zhou has given several national and regional presentations on aneurysm disease and mesenteric disease. He has also co-authored multiple clinical papers in the field of vascular surgery. Following his fellowship Dr. Zhou was on staff at the Wellspan Hospital in York, Pennsylvania, for four years.

Dr. Zhou is double board-certified in general surgery and vascular surgery. He is a Fellow of the American College of Surgeons (FACS) and holds a certificate as a Registered Provider in Vascular Interpretation.

Apart from taking care of his patients, Dr. Zhou enjoys classical music and watching motor racing.

FoxHall Dermatology is a board-certified dermatology practice in Northwest Washington, DC, offering comprehensive medical, surgical, and cosmetic skin care for patients throughout the DMV region. Our team of four specialists covers the full spectrum of dermatology — from acne and eczema to Mohs micrographic surgery and advanced injectable treatments — all under one roof at 4910 Massachusetts Ave NW.

We serve one of the most diverse cities in the country, and our expertise reflects that. Two of our physicians trained at Howard University Hospital, widely recognized for excellence in caring for patients with diverse skin tones and conditions that disproportionately affect skin of color. At FoxHall, inclusive dermatology isn't a marketing line — it's how we were trained and how we practice every day.

Whether you're coming in for a routine skin exam, managing a chronic condition like psoriasis or rosacea, or exploring cosmetic treatments like Botox® or dermal fillers, you'll receive care from physicians and providers who know your skin and take the time to get it right.

Our Dermatology Team

Dr. Stephen Suah, MD, MS, FAAD — Board-Certified Dermatologist

Washingtonian Top Doctor: 2022 · 2023 · 2024 · 2025

Dr. Suah is a Washington, DC native who completed his medical training at Howard University, the DC VA Medical Center, and Children's National Hospital. He has been recognized as a Washingtonian Top Doctor four consecutive years — a distinction awarded by peer physician survey, not patient volume.

His clinical focus spans medical and cosmetic dermatology, with particular expertise in caring for patients with diverse skin types. Dr. Suah personally performs all cosmetic injectable treatments at FoxHall, including Botox®, Dysport®, Xeomin®, and Jeuveau®. He also offers general dermatology care for conditions including acne, eczema, hyperpigmentation, melasma, and hair loss.

Dr. Raina Bembry, MD, FAAD — Board-Certified Dermatologist

Dr. Bembry specializes in pediatric dermatology, skin of color, and complex medical skin conditions. She brings a thorough, unhurried approach to every visit — whether she's treating a child's first eczema flare or managing a long-standing inflammatory condition in an adult patient.

Her training and clinical focus make her one of the most sought-after providers in the practice for patients whose skin concerns have been misdiagnosed or undertreated elsewhere. Conditions including keloids, central centrifugal cicatricial alopecia (CCCA), post-inflammatory hyperpigmentation, and scalp disorders are among her areas of expertise.

Dr. Wallace Nozile, MD, FAAD — Double Board-Certified Dermatologist & Mohs Surgeon

Dr. Nozile is double board-certified in dermatology and Mohs micrographic surgery — one of the most precise and effective treatments for skin cancer available. Mohs surgery achieves the highest cure rate of any skin cancer treatment while removing the smallest amount of healthy tissue, minimizing scarring and preserving cosmetic outcomes.

Having a fellowship-trained Mohs surgeon on staff means FoxHall patients can receive diagnosis, surgical treatment, and follow-up care within the same practice — without referral to an outside surgical center.

Carolyn Yi, MCHS, PA-C — Certified Physician Assistant

Carolyn brings a warm, patient-first approach to a full range of dermatologic concerns. She provides expert care for acne, eczema, psoriasis, rosacea, and age-related skin changes, and performs cosmetic treatments including Botox®, Dysport®, Patients consistently describe her as thorough, approachable, and genuinely invested in long-term outcomes.

Why Patients in Northwest DC Choose FoxHall Dermatology

Four Consecutive Years as a Washingtonian Top Doctor Dr. Suah has been named a Washingtonian Top Doctor every year from 2022 through 2025 — one of the few dermatologists in DC to hold this distinction four years running.

Mohs Surgery In-House Dr. Nozile performs Mohs micrographic surgery on-site at our Massachusetts Ave location. Patients with skin cancer diagnoses receive gold-standard surgical care without leaving the practice they already trust.

Specialized Expertise in Skin of Color Washington, DC is a majority-minority city, and skin conditions present differently across skin tones — affecting diagnosis, treatment selection, and outcomes. Our team is specifically trained to recognize and treat dermatologic conditions in patients with darker skin, including hyperpigmentation, melasma, keloids, hair loss disorders, and inflammatory conditions that are frequently mismanaged in general dermatology settings.

Complete Care Across Every Stage of Life From a child's first eczema diagnosis to adult skin cancer screening to cosmetic rejuvenation, FoxHall provides continuous, comprehensive dermatology care for patients at every age and stage.

Convenient Northwest DC Location We're located at 4910 Massachusetts Ave NW, Suite 308, easily accessible from Georgetown, Foxhall Village, Palisades, Glover Park, Tenleytown, Friendship Heights, and the broader DC, Maryland, and Virginia area.

Visit FoxHall Dermatology

FoxHall Dermatology 4910 Massachusetts Ave NW, Suite 308 Washington, DC 20016

📞 202-695-1000 📠 Fax: 202-503-1791

Office Hours Monday – Friday: 8:20 am – 4:30 pm Saturday – Sunday: Closed

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