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

Marquetta Williamson, ARNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1487127742

Marquetta Williamson, ARNP is a Nurse Practitioner in Seattle, Washington. Qualified in 2019, 7 years ago. Practices with The Association of University Physicians, a 3,459-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Nebraska and Washington.

Years since qualifying
7
Licensed in
NE, WA
In the registry since
2019
Specialties on file
2
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

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Practice location Address checks out

325 9th Ave
Seattle, WA 98104-2420
Phone: (206) 520-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence AP61643314 (WA)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence 112714 (NE)

Record details

NPI number1487127742
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedJanuary 9, 2019
Last updated in NPPESJuly 29, 2025
Certification dateJuly 29, 2025
Mailing addressPo Box 50095, Seattle, WA 98145-5095

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice The Association Of University Physicians — 3459 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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