Mark Mccarthy, MSW
NPI 1487125506 · Social Worker · Seattle, WA
Mark Mccarthy, MSW is a Social Worker provider in Seattle, WA (NPI 1487125506).
Provider details
- NPI number
- 1487125506
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
7 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 222 Wall St Ste 100Seattle, WA 98121-1431Phone: (206) 441-3329
Registry dates
- Enumerated
- 2018-12-16
- Last updated
- 2020-11-18
- Certified
- 2020-11-18
Frequently asked questions
- What is Mark Mccarthy's NPI number?
- Mark Mccarthy's National Provider Identifier (NPI) is 1487125506, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Mccarthy's specialty?
- Mark Mccarthy is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Mccarthy located?
- Mark Mccarthy's practice location on file with NPPES is 1600 S Lane St, Seattle, WA 98144-2810.
- What is Mark Mccarthy's phone number?
- The practice phone number listed in the NPPES registry for Mark Mccarthy is (206) 682-2371.
- Is Mark Mccarthy's NPI active?
- Yes — Mark Mccarthy's NPI (1487125506) is active in the NPPES registry as of the last update on 2020-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.