Cornelia Verna Mathilde Seiffert, LCSW
Clinical Social Worker · Orange, CA
Cornelia Verna Mathilde Seiffert, LCSW is a clinical social worker with a practice address in Orange, California, and NPI 1821576828, issued on Aug 1, 2018. Check the license (California 104102, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Cornelia Verna Mathilde Seiffert
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License numbers
- 104102 CA
81461 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1820 W Orangewood Ave Ste 105, Orange, CA 92868
- Phone
- (323) 886-2417
- Enumerated
- Aug 1, 2018
- Record last updated
- Jun 2, 2022
- Fax
- (626) 565-1565
- Medicare enrollment
- Enrolled (PECOS I20201029001997); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1820 W Orangewood Ave Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily BushClinical Social Worker1164890703
- Kate HizonSpeech-Language Assistant1073487476
Verify Cornelia Verna Mathilde Seiffert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 104102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
309 clinical social worker records list a practice address in Orange
They are 309 of the 13,245 NPPES records with a practice address in Orange, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 309 in Orange → All 36,261 in California → Every provider in Orange →
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- Maria Abaci, LCSWSan Rafael, CA1205161924
- Louisa AbadaOakland, CA1023502259
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Common questions
What is Cornelia Verna Mathilde Seiffert, LCSW's NPI number?
Cornelia Verna Mathilde Seiffert, LCSW's National Provider Identifier (NPI) is 1821576828, issued on Aug 1, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Cornelia Verna Mathilde Seiffert, LCSW located?
The NPPES record lists a practice address at 1820 W Orangewood Ave Ste 105, Orange, CA, 92868. Phone: (323) 886-2417. Providers update this record themselves, so call before visiting.
How can I verify Cornelia Verna Mathilde Seiffert, LCSW's license?
NPPES lists California license number 104102, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.