Shannon O'Brien, LCSW
NPI 1962088062 · Clinical Social Worker · Lancaster, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shannon O'Brien, LCSW is a Clinical Social Worker provider in Lancaster, CA (NPI 1962088062).
Provider details
- NPI number
- 1962088062
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0904014443 (VA)
Specialties & taxonomies
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
5 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
- 2021-03-20
- Last updated
- 2026-04-30
- Certified
- 2026-04-30
Frequently asked questions
- What is Shannon O'Brien's NPI number?
- Shannon O'Brien's National Provider Identifier (NPI) is 1962088062, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shannon O'Brien's specialty?
- Shannon O'Brien is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Shannon O'Brien located?
- Shannon O'Brien's practice location on file with NPPES is 626 W Lancaster Blvd Unit 128, Lancaster, CA 93534-3108.
- What is Shannon O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Shannon O'Brien is (661) 434-5997.
- Does Shannon O'Brien accept Medicare?
- Shannon O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shannon O'Brien's NPI active?
- Yes — Shannon O'Brien's NPI (1962088062) is active in the NPPES registry as of the last update on 2026-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.