Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation
NPI 1164161105 · Clinical Social Worker · Orange, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation is a Clinical Social Worker organization in Orange, CA (NPI 1164161105).
Provider details
- NPI number
- 1164161105
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Cornelia Seiffert, Lcsw/Owner(323) 886-2417
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
4 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
- 2022-05-28
- Last updated
- 2022-06-02
- Certified
- 2022-06-02
Frequently asked questions
- What is Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation's NPI number?
- Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation's National Provider Identifier (NPI) is 1164161105, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation?
- Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation located?
- Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation's practice location on file with NPPES is 1820 W Orangewood Ave Ste 105, Orange, CA 92868-5052.
- What is Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation's phone number?
- The practice phone number listed in the NPPES registry for Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation is (323) 886-2417.
- Does Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation accept Medicare?
- Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation?
- The authorized official listed on Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation's NPPES record is Cornelia Seiffert, Lcsw/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation's NPI active?
- Yes — Cornelia Seiffert, Lcsw, a Licensed Clinical Social Worker Corporation's NPI (1164161105) is active in the NPPES registry as of the last update on 2022-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.