Jill Maroscia, LCSW
NPI 1588900021 · Social Worker · Seattle, WA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jill Maroscia, LCSW is a Social Worker provider in Seattle, WA (NPI 1588900021).
Provider details
- NPI number
- 1588900021
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 8504-C (NV)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 19636 N 27th Ave #106Phoenix, AZ 85027Phone: (480) 712-4600
- 3601 S 6th AveTucson, AZ 85723-0001Phone: (520) 792-1450
Registry dates
- Enumerated
- 2013-01-02
- Last updated
- 2025-05-14
- Certified
- 2025-05-14
Frequently asked questions
- What is Jill Maroscia's NPI number?
- Jill Maroscia's National Provider Identifier (NPI) is 1588900021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jill Maroscia's specialty?
- Jill Maroscia is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Jill Maroscia located?
- Jill Maroscia's practice location on file with NPPES is 1200 12th Ave S, Seattle, WA 98144-2712.
- What is Jill Maroscia's phone number?
- The practice phone number listed in the NPPES registry for Jill Maroscia is (206) 326-2400.
- Does Jill Maroscia accept Medicare?
- Jill Maroscia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jill Maroscia's NPI active?
- Yes — Jill Maroscia's NPI (1588900021) is active in the NPPES registry as of the last update on 2025-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.