Mariana Weller, MSW
NPI 1376990721 · Clinical Social Worker · Seattle, WA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariana Weller, MSW is a Clinical Social Worker provider in Seattle, WA (NPI 1376990721).
Provider details
- NPI number
- 1376990721
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- No
- License
- SA 60640671 (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
10 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
- 2016-05-16
- Last updated
- 2016-05-16
Frequently asked questions
- What is Mariana Weller's NPI number?
- Mariana Weller's National Provider Identifier (NPI) is 1376990721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariana Weller's specialty?
- Mariana Weller is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mariana Weller located?
- Mariana Weller's practice location on file with NPPES is 1600 E Olive St, Seattle, WA 98122-2735.
- What is Mariana Weller's phone number?
- The practice phone number listed in the NPPES registry for Mariana Weller is (206) 302-2200.
- Does Mariana Weller accept Medicare?
- Mariana Weller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariana Weller's NPI active?
- Yes — Mariana Weller's NPI (1376990721) is active in the NPPES registry as of the last update on 2016-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.