Marta Sloan, LMHC
NPI 1215570593 · Mental Health Counselor · Seattle, WA
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marta Sloan, LMHC is a Mental Health Counselor provider in Seattle, WA (NPI 1215570593).
Provider details
- NPI number
- 1215570593
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC
- Sex
- Female
- Sole proprietor
- Yes
- License
- LH60252773 (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
6 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
- 2019-10-19
- Last updated
- 2019-10-19
Frequently asked questions
- What is Marta Sloan's NPI number?
- Marta Sloan's National Provider Identifier (NPI) is 1215570593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marta Sloan's specialty?
- Marta Sloan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Marta Sloan located?
- Marta Sloan's practice location on file with NPPES is 1818 E Mercer St Ste 101, Seattle, WA 98112-4689.
- What is Marta Sloan's phone number?
- The practice phone number listed in the NPPES registry for Marta Sloan is (206) 658-5340.
- Does Marta Sloan accept Medicare?
- Marta Sloan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marta Sloan's NPI active?
- Yes — Marta Sloan's NPI (1215570593) is active in the NPPES registry as of the last update on 2019-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.