OrganizationActive
Marks Health
NPI 1174141915 · Clinical Social Worker · Seattle, WA
Marks Health is a Clinical Social Worker organization in Seattle, WA (NPI 1174141915).
Provider details
- NPI number
- 1174141915
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Mark Niezgoda, President(206) 321-3997
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(64/100 index)
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
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
4219 S Othello St Apt 517
Seattle, WA 98118-3886
Phone: (206) 321-3997
Street-level locationGet directions
Mailing address
Po Box 84097
Seattle, WA 98124-8497
Registry dates
- Enumerated
- 2020-07-08
- Last updated
- 2020-07-08
- Certified
- 2020-07-08
Frequently asked questions
- What is Marks Health's NPI number?
- Marks Health's National Provider Identifier (NPI) is 1174141915, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Marks Health?
- Marks Health is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marks Health located?
- Marks Health's practice location on file with NPPES is 4219 S Othello St Apt 517, Seattle, WA 98118-3886.
- What is Marks Health's phone number?
- The practice phone number listed in the NPPES registry for Marks Health is (206) 321-3997.
- Who is the authorized official for Marks Health?
- The authorized official listed on Marks Health's NPPES record is Mark Niezgoda, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Marks Health's NPI active?
- Yes — Marks Health's NPI (1174141915) is active in the NPPES registry as of the last update on 2020-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.