IndividualActive
William Killingsworth
NPI 1639588569 · Home Health Aide · Mukilteo, WA
William Killingsworth is a Home Health Aide provider in Mukilteo, WA (NPI 1639588569).
Provider details
- NPI number
- 1639588569
- Entity type
- Individual
- Primary specialty
- Home Health AideNursing Service Related Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 603306923 (WA)
Specialties & taxonomies
Nursing Service Related Providers
Profile Score
Detailed profile(75/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
6304 Central Dr
Mukilteo, WA 98275-4520
Phone: (425) 312-3535
Street-level locationGet directions
Mailing address
6304 Central Dr
Mukilteo, WA 98275-4520
Registry dates
- Enumerated
- 2014-08-05
- Last updated
- 2014-08-05
Frequently asked questions
- What is William Killingsworth's NPI number?
- William Killingsworth's National Provider Identifier (NPI) is 1639588569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Killingsworth's specialty?
- William Killingsworth is listed in the NPPES registry with a primary specialty of Home Health Aide (Nursing Service Related Providers).
- Where is William Killingsworth located?
- William Killingsworth's practice location on file with NPPES is 6304 Central Dr, Mukilteo, WA 98275-4520.
- What is William Killingsworth's phone number?
- The practice phone number listed in the NPPES registry for William Killingsworth is (425) 312-3535.
- Is William Killingsworth's NPI active?
- Yes — William Killingsworth's NPI (1639588569) is active in the NPPES registry as of the last update on 2014-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.