Catherine Zylstra
NPI 1700139177 · Addiction (Substance Use Disorder) Counselor · Everett, WA
Catherine Zylstra is a Addiction (Substance Use Disorder) Counselor provider in Everett, WA (NPI 1700139177).
Provider details
- NPI number
- 1700139177
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- CO60306492 (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
13 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
- 2012-10-22
- Last updated
- 2012-10-22
Frequently asked questions
- What is Catherine Zylstra's NPI number?
- Catherine Zylstra's National Provider Identifier (NPI) is 1700139177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Zylstra's specialty?
- Catherine Zylstra is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Catherine Zylstra located?
- Catherine Zylstra's practice location on file with NPPES is 2610 Wetmore Ave, Everett, WA 98201-2927.
- What is Catherine Zylstra's phone number?
- The practice phone number listed in the NPPES registry for Catherine Zylstra is (425) 258-5270.
- Is Catherine Zylstra's NPI active?
- Yes — Catherine Zylstra's NPI (1700139177) is active in the NPPES registry as of the last update on 2012-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.