Kassandra Terwillegar
NPI 1902407380 · Addiction (Substance Use Disorder) Counselor · Sedro Woolley, WA
Kassandra Terwillegar is a Addiction (Substance Use Disorder) Counselor provider in Sedro Woolley, WA (NPI 1902407380).
Provider details
- NPI number
- 1902407380
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
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
5 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2020-11-03
- Last updated
- 2020-11-03
- Certified
- 2020-11-03
Frequently asked questions
- What is Kassandra Terwillegar's NPI number?
- Kassandra Terwillegar's National Provider Identifier (NPI) is 1902407380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kassandra Terwillegar's specialty?
- Kassandra Terwillegar is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Kassandra Terwillegar located?
- Kassandra Terwillegar's practice location on file with NPPES is 1960 Thompson Dr, Sedro Woolley, WA 98284-5007.
- What is Kassandra Terwillegar's phone number?
- The practice phone number listed in the NPPES registry for Kassandra Terwillegar is (360) 856-3186.
- Is Kassandra Terwillegar's NPI active?
- Yes — Kassandra Terwillegar's NPI (1902407380) is active in the NPPES registry as of the last update on 2020-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.