Ellen Ostergren, LCSW
NPI 1134325582 · Social Worker · Alameda, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Ostergren, LCSW is a Social Worker provider in Alameda, CA (NPI 1134325582).
Provider details
- NPI number
- 1134325582
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
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
19 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2007-06-22
- Last updated
- 2025-09-10
- Certified
- 2025-09-10
Frequently asked questions
- What is Ellen Ostergren's NPI number?
- Ellen Ostergren's National Provider Identifier (NPI) is 1134325582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Ostergren's specialty?
- Ellen Ostergren is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Ellen Ostergren located?
- Ellen Ostergren's practice location on file with NPPES is 1609 San Antonio Ave, Alameda, CA 94501-4040.
- What is Ellen Ostergren's phone number?
- The practice phone number listed in the NPPES registry for Ellen Ostergren is (352) 222-5005.
- Does Ellen Ostergren accept Medicare?
- Ellen Ostergren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Ostergren's NPI active?
- Yes — Ellen Ostergren's NPI (1134325582) is active in the NPPES registry as of the last update on 2025-09-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.