Mary Grace Sosing
NPI 1538642418 · Clinical Social Worker · Pasadena, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Grace Sosing is a Clinical Social Worker provider in Pasadena, CA (NPI 1538642418).
Provider details
- NPI number
- 1538642418
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 367199 (CA)
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
7 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
- 2018-09-07
- Last updated
- 2025-08-25
- Certified
- 2025-08-25
Frequently asked questions
- What is Mary Grace Sosing's NPI number?
- Mary Grace Sosing's National Provider Identifier (NPI) is 1538642418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Grace Sosing's specialty?
- Mary Grace Sosing is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Grace Sosing located?
- Mary Grace Sosing's practice location on file with NPPES is 393 E Walnut St Regional Behavioral Health Fl 2, Pasadena, CA 91188-1630.
- What is Mary Grace Sosing's phone number?
- The practice phone number listed in the NPPES registry for Mary Grace Sosing is (877) 608-0049.
- Does Mary Grace Sosing accept Medicare?
- Mary Grace Sosing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Grace Sosing's NPI active?
- Yes — Mary Grace Sosing's NPI (1538642418) is active in the NPPES registry as of the last update on 2025-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.