Rosalyn Warren, LCSW
NPI 1073645677 · Clinical Social Worker · Lancaster, CA
Rosalyn Warren, LCSW is a Clinical Social Worker provider in Lancaster, CA (NPI 1073645677).
Provider details
- NPI number
- 1073645677
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 13200-C (NV)
Specialties & taxonomies
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
19 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
- 2007-03-09
- Last updated
- 2026-06-02
- Certified
- 2026-06-02
Frequently asked questions
- What is Rosalyn Warren's NPI number?
- Rosalyn Warren's National Provider Identifier (NPI) is 1073645677, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosalyn Warren's specialty?
- Rosalyn Warren is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Rosalyn Warren located?
- Rosalyn Warren's practice location on file with NPPES is 44228 Hampton St, Lancaster, CA 93536-7512.
- What is Rosalyn Warren's phone number?
- The practice phone number listed in the NPPES registry for Rosalyn Warren is (909) 728-3567.
- Is Rosalyn Warren's NPI active?
- Yes — Rosalyn Warren's NPI (1073645677) is active in the NPPES registry as of the last update on 2026-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.