Percy Balderia MD, RhMSUS

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Accepting New Patients

Board Certification

Subspecialty Board of Rheumatology, American College of Rheumatology’s Musculoskeletal Ultrasound Certification, American Board of Internal Medicine


Dr. Balderia earned his medical degree through the accelerated INTARMED program at the University of the Philippines, where he was Valedictorian, Magna Cum Laude. He completed an internal medicine residency at Albert Einstein Medical Center in Philadelphia and a rheumatology fellowship at the University of Washington, where he received The Arthritis Foundation Fellow award.

Career Influence

"Thanks to recent therapeutic breakthroughs, rheumatologists can have a tremendous impact on patients and better prevent disability than ever before. This field energizes me because even while our understanding of diseases has vastly grown, there is still a lot we do not know. I enjoy guiding patients through these uncertainties."

Clinical Interests

Dr. Balderia’s practice focuses on rheumatoid arthritis, psoriatic arthritis, gout, pseudogout, spondyloarthritis, ankylosing spondylitis, and arthritis associated with Crohn’s disease/ulcerative colitis.

Personal Interests

Outside of practice, he enjoys cooking Filipino food, hiking, and spending time with family.

Practice Philosophy

"Primum non nocere – 'first, do no harm.' With the growing number of new tests and therapies available at our disposal and on the horizon for rheumatologic conditions, my role is to help patients decide which ones, if any, are evidence-based and most appropriate for them."


English, Tagalog


Dr. Balderia Discusses Gouty Arthritis on KOMO Radio

Dr. Balderia Discusses Rheumatoid Arthritis