Sydney Sivertsen, MSW, LICSW
NPI 1063940070 · Clinical Social Worker · Everett, WA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sydney Sivertsen, MSW, LICSW is a Clinical Social Worker provider in Everett, WA (NPI 1063940070).
Provider details
- NPI number
- 1063940070
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW, LICSW
- Sex
- Female
- Sole proprietor
- No
- License
- LW61127740 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2017-06-03
- Last updated
- 2025-05-12
- Certified
- 2025-05-12
Frequently asked questions
- What is Sydney Sivertsen's NPI number?
- Sydney Sivertsen's National Provider Identifier (NPI) is 1063940070, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sydney Sivertsen's specialty?
- Sydney Sivertsen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sydney Sivertsen located?
- Sydney Sivertsen's practice location on file with NPPES is 4526 Federal Ave, Everett, WA 98203-2132.
- What is Sydney Sivertsen's phone number?
- The practice phone number listed in the NPPES registry for Sydney Sivertsen is (425) 349-6200.
- Does Sydney Sivertsen accept Medicare?
- Sydney Sivertsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sydney Sivertsen's NPI active?
- Yes — Sydney Sivertsen's NPI (1063940070) is active in the NPPES registry as of the last update on 2025-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.