We are pleased to announce that a new agreement has been reached with Aetna. This allows Valley to continue to be an in-network provider for Aetna-insured patients and will cover services provided since previous contracts ended June 1, 2025. Thank you for your patience throughout this process.

Marcus Tan, MD
Dermatology, Mohs Surgery
Valley Medical Group Provider

Provider Bio

Joseph Roberts, MD, has a special interest in diseases of the bile ducts and pancreas, in addition to general gastroenterology and hepatology. He believes in partnering with patients and families in order to find medical solutions that empower them through the process of treating disease.

Dr. Roberts grew up in the Seattle area and attended medical school at University of Washington. He traveled to Denver for internal medicine residency at University of Colorado, before returning home for fellowships in gastroenterology and advanced therapeutic gastroenterology at University of Washington. His additional interventional gastroenterology fellowship included training in endoscopic ultrasound (EUS), endoscopic retrograde cholangiopancreatography (ERCP), luminal stenting and endoscopic mucosal resection (EMR). He is board certified in both Internal medicine and gastroenterology by the American Board of Internal Medicine.

When not at work, Dr. Roberts enjoys spending time with his family including his wife and two young children. His hobbies include travel, cycling, snowboarding and amatuer carpentry.

Videos by this provider

Languages Spoken

English

Scheduling & Locations

This provider works at the location(s) listed below. If you haven’t had an appointment with this provider before, please look near the provider’s photo above to make sure they are accepting new patients. Telehealth appointments are available for some conditions. Please call the clinic to learn more about telehealth options.

Dermatology Clinic | Renton

Time Square
660 SW 39th St Ste 150
Renton, WA 98057
Call 425.690.3483 Fax 425.690.9083