Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

MS. Katherine Elisa Williams, MD

Individual provider Pediatrics Physician · NPI 1518100445

MS. Katherine Elisa Williams, MD is a Pediatrics Physician in Sammamish, Washington. Licensed in Washington. Registered with an NPI since 2009.

Licensed in
WA
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

22620 SE 4th St Ste #200
Sammamish, WA 98074
Phone: (425) 836-5407
Fax: (425) 836-5557
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence MD 60274584 (WA)

Record details

NPI number1518100445
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 8, 2009
Last updated in NPPESNovember 21, 2022
Certification dateNovember 21, 2022

Other providers in Sammamish