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

Mrs. Madeleine Williams, ARNP

Individual provider Primary Care Nurse Practitioner · NPI 1659096683

Mrs. Madeleine Williams, ARNP is a Nurse Practitioner in Sammamish, Washington. Qualified in 2022, 4 years ago. Practices with Overlake Medical Clinics LLC, a 426-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
4
Licensed in
WA
In the registry since
2022
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

Practice location Address checks out

22850 NE 8th St Ste 103
Sammamish, WA 98074-7256
Phone: (425) 898-0305
Show map & directions

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

Specialties & licences

Primary Care Nurse Practitioner (primary) Taxonomy 363LP2300X · Licence AP61360007 (WA)

Record details

NPI number1659096683
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedOctober 12, 2022
Last updated in NPPESMarch 16, 2023
Certification dateMarch 16, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Overlake Medical Clinics Llc — 426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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