PORTLAND, Oregon March 17, 2026 – Dermatology Associates is proud to announce that three of its physicians – Eric Hester, M.D., Stephen Mannino, M.D., and Gretchen Vanderbeek, M.D. – have been recognized as 2026 Castle Connolly Top Doctor honorees. This prestigious distinction recognizes physicians who their peers highly regard for excellence in clinical care and leadership in their specialties.
Published annually by Castle Connolly, the Top Doctors list identifies leading physicians across the United States through a rigorous, peer-driven nomination and research process. Fellow doctors and healthcare professionals nominate physicians, who are then evaluated by a physician-led research team. The selection process considers multiple factors, including professional achievements, education and training, hospital affiliations, research contributions, leadership roles, and peer reputation. Only a small percentage of physicians nationwide are selected for this honor each year.
Being named a Castle Connolly Top Doctor reflects a commitment to exceptional patient care and a high level of trust within the medical community.
About the Honorees
Eric Hester, M.D., is a board-certified dermatologist who provides comprehensive dermatologic care, including medical dermatology, skin cancer treatment, and cosmetic procedures at the Tigard location. He enjoys caring for patients of all ages and helping them manage a variety of skin conditions to support overall wellness. Dr. Hester considers the patient–physician relationship a privilege and values being part of his patients’ health journeys.
Stephen Mannino, M.D., is a board-certified dermatologist with extensive clinical experience. Dr. Mannino has practiced dermatology since 2009 and practices at the Lake Oswego location. He values the opportunity to partner with patients in managing their skin health. He is committed to educating patients about their conditions and helping them take steps toward healthier skin.
Gretchen Vanderbeek, M.D., is a board-certified dermatologist at the Tigard location who treats a variety of skin conditions, including acne, eczema, psoriasis, and skin cancer. Recognizing that skin examinations can be difficult for many patients, she values the trust they place in her and is committed to creating personalized treatment plans tailored to each individual’s needs and priorities.
Dermatology Associates congratulates Drs. Hester, Mannino, and Vanderbeek for this national recognition and celebrate their continued commitment to providing exceptional dermatologic care to patients throughout the Portland Metro area.
Schedule an appointment with these Top Doctors at Dermatology Associates or call 503.245.2415.
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About Dermatology Associates
Founded in 1986, Dermatology Associates is a leading dermatology practice serving patients throughout the Portland Metro area with comprehensive medical, surgical, and cosmetic dermatology services. They specialize in the diagnosis and treatment of skin conditions, including acne, eczema, psoriasis, and skin cancer, and offer advanced procedures, including Mohs micrographic surgery, a highly effective treatment for many types of skin cancer. In addition to medical dermatology and skin cancer care, Dermatology Associates provides a range of cosmetic dermatology treatments, including injectable treatments such as BOTOX® Cosmetic and Juvéderm®. With a team of experienced dermatology providers and a commitment to patient-centered care, Dermatology Associates delivers personalized treatment plans to help patients achieve and maintain healthy skin. For more information, visit da-pdx.com