Marvin Williams, ARNP
NPI 1790068039 · Psychiatric/Mental Health Nurse Practitioner · Seattle, WA
Marvin Williams, ARNP is a Psychiatric/Mental Health Nurse Practitioner provider in Seattle, WA (NPI 1790068039).
Provider details
- NPI number
- 1790068039
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Male
- Sole proprietor
- No
- License
- AP 60302470 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-09-22
- Last updated
- 2017-02-09
Frequently asked questions
- What is Marvin Williams's NPI number?
- Marvin Williams's National Provider Identifier (NPI) is 1790068039, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marvin Williams's specialty?
- Marvin Williams is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marvin Williams located?
- Marvin Williams's practice location on file with NPPES is 1600 E Olive St, Seattle, WA 98122-2735.
- What is Marvin Williams's phone number?
- The practice phone number listed in the NPPES registry for Marvin Williams is (206) 302-2200.
- Is Marvin Williams's NPI active?
- Yes — Marvin Williams's NPI (1790068039) is active in the NPPES registry as of the last update on 2017-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.