Ewa Chrostek
NPI 1679914774 · Clinical Social Worker · Lancaster, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ewa Chrostek is a Clinical Social Worker provider in Lancaster, CA (NPI 1679914774).
Provider details
- NPI number
- 1679914774
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- LCSW93124 (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
12 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
- 2013-07-17
- Last updated
- 2021-03-18
- Certified
- 2021-03-18
Frequently asked questions
- What is Ewa Chrostek's NPI number?
- Ewa Chrostek's National Provider Identifier (NPI) is 1679914774, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ewa Chrostek's specialty?
- Ewa Chrostek is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Ewa Chrostek located?
- Ewa Chrostek's practice location on file with NPPES is 251 E Avenue K6, Lancaster, CA 93535-4513.
- What is Ewa Chrostek's phone number?
- The practice phone number listed in the NPPES registry for Ewa Chrostek is (661) 974-8400.
- Does Ewa Chrostek accept Medicare?
- Ewa Chrostek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ewa Chrostek's NPI active?
- Yes — Ewa Chrostek's NPI (1679914774) is active in the NPPES registry as of the last update on 2021-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.