License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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Specialties & Research

Dr. Sonja Maddox, MD is board certified in Family Medicine.

  • She has special expertise in 3 areas:
  • Diabetes
  • Diabetes Complications
  • Pediatrics

Education & Awards

Dr. Maddox graduated from University of Washington, Seattle. She has 2 awards.

Bridges to Excellence Recognition
Bridges to Excellence Medical Home Recognition (2013 - 2016)
Level II
NCQA Physician Practice Connections - Patient Centered Medical Home (2013 - 2016)


Dr. Maddox has 1 hospital affiliations:

  • Valley Medical Center 


  • English
  • French

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Additional Information
Dr. Sonja Pierrette Maddox MD is a female Family Practitioner, has 12 years of experience and practices in Family Medicine.
Where does Dr. Sonja P. Maddox practice?
Dr. Sonja Maddox has 3 office locations.
Dr. Sonja Maddox practices Family Medicine near Renton, WA.
Additional practice locations include: Federal Way, WA and Auburn, WA.
See Renton Family Physicians.