Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Cornelia Verna Mathilde Seiffert, LCSW

Individual provider Mental Health Counselor · NPI 1821576828

Cornelia Verna Mathilde Seiffert, LCSW is a Clinical Social Worker in Orange, California. Qualified in 2017, 9 years ago. Works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
9
Licensed in
CA
In the registry since
2018
Specialties on file
4
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1820 W Orangewood Ave Ste 105
Orange, CA 92868-5052
Phone: (323) 886-2417
Fax: (626) 565-1565
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4221 Wilshire Blvd Ste 230, Los Angeles, CA 90010-3554 — (213) 441-6780

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 104102 (CA)
Mental Health Counselor Taxonomy 101YM0800X
Mental Health Counselor Taxonomy 101YM0800X · Licence 81461 (CA)
Social Worker Taxonomy 104100000X · Licence 81461 (CA)

Record details

NPI number1821576828
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedAugust 1, 2018
Last updated in NPPESJune 2, 2022
Certification dateJune 2, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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