City of Mercer Island
NPI 1639203243 · Clinical Social Worker · Mercer Island, WA
City of Mercer Island is a Clinical Social Worker organization in Mercer Island, WA (NPI 1639203243).
Provider details
- NPI number
- 1639203243
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Cynthia Goodwin, Executive Director(206) 236-3535
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counselor101Y00000X
Behavioral Health & Social Service Providers
- Social Worker104100000X
Behavioral Health & Social Service Providers
- Marriage & Family Therapist106H00000X
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
19 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
Other names (DBA / former)
- Other name
- Mercer Island Youth and Family Services Miyfs
Registry dates
- Enumerated
- 2007-03-15
- Last updated
- 2025-09-11
Frequently asked questions
- What is City of Mercer Island's NPI number?
- City of Mercer Island's National Provider Identifier (NPI) is 1639203243, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is City of Mercer Island?
- City of Mercer Island is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is City of Mercer Island located?
- City of Mercer Island's practice location on file with NPPES is 2040 84th Ave Se, Mercer Island, WA 98040.
- What is City of Mercer Island's phone number?
- The practice phone number listed in the NPPES registry for City of Mercer Island is (206) 236-3525.
- Who is the authorized official for City of Mercer Island?
- The authorized official listed on City of Mercer Island's NPPES record is Cynthia Goodwin, Executive Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is City of Mercer Island's NPI active?
- Yes — City of Mercer Island's NPI (1639203243) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.