Mary Nicholls
NPI 1063959278 · Mental Health Counselor · Seattle, WA
Mary Nicholls is a Mental Health Counselor provider in Seattle, WA (NPI 1063959278).
Provider details
- NPI number
- 1063959278
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- LH61588430 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counselor101Y00000X
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
9 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
- 2017-01-25
- Last updated
- 2025-12-19
- Certified
- 2025-12-19
Frequently asked questions
- What is Mary Nicholls's NPI number?
- Mary Nicholls's National Provider Identifier (NPI) is 1063959278, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Nicholls's specialty?
- Mary Nicholls is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mary Nicholls located?
- Mary Nicholls's practice location on file with NPPES is 4120 Stone Way N, Seattle, WA 98103-8014.
- What is Mary Nicholls's phone number?
- The practice phone number listed in the NPPES registry for Mary Nicholls is (206) 545-8643.
- Is Mary Nicholls's NPI active?
- Yes — Mary Nicholls's NPI (1063959278) is active in the NPPES registry as of the last update on 2025-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.