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

Marvin Wallace Williams PLLC

Organization Psychiatric/Mental Health Nurse Practitioner · NPI 1255066577

Marvin Wallace Williams PLLC is a Psychiatric/Mental Health Nurse Practitioner in Tukwila, Washington. Registered with an NPI since 2022.

In the registry since
2022
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

14900 Interurban Ave S Ste 271-111
Tukwila, WA 98168-4635
Phone: (210) 883-5936
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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

Record details

NPI number1255066577
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Marvin Williams — Owner · (210) 883-5936
NPI enumeratedJuly 20, 2022
Last updated in NPPESJuly 20, 2022
Certification dateJuly 20, 2022
Mailing address14900 Interurban Ave S Ste 271-111, Tukwila, WA 98168-4635

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