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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

KATHERINE HOLLANDER
NPI 1255246112
Social Worker in Mandeville, LA

Active since August 17, 2026
100 BULLDOG DR, MANDEVILLE, LA 70471(985) 892-7112 Get Directions Write a Review

NPPES record added: August 17, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Katherine Hollander NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHERINE HOLLANDER (NPI 1255246112) is an individual social worker in Mandeville, Louisiana, licensed in Louisiana (19427) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1255246112
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameKATHERINE HOLLANDER
Location Address100 BULLDOG DRMandeville, LA 70471-6101
Mailing Address100 Bulldog DrMandeville, LA 70471-6101
Phone(985) 892-7112
Sole ProprietorNo
Enumeration DateAugust 17, 2026
NPPES CertifiedAugust 17, 2026
✔ NPI 1255246112 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in LA · 19427
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
100 BULLDOG DR, Mandeville, LA 70471
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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LAURA LENFANT RN
Registered Nurse (School)
100 BULLDOG DR
MANDEVILLE, LA 70471
St. Tammany Parish (985) 892-7112
LEANNE GORDY CARUSO MA, CCC-SLP
Speech-Language Pathologist
100 BULLDOG DR
MANDEVILLE, LA 70471
St. Tammany Parish (985) 892-7112
JERI ANN BELLAN MA, LPC
Counselor (Mental Health)
100 BULLDOG DR
MANDEVILLE, LA 70471
St. Tammany Parish (985) 892-7112

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Hollander's NPI number?

The NPI number for Katherine Hollander is 1255246112. It was assigned to this individual provider in the NPPES registry on August 17, 2026.

Where is Katherine Hollander located?

Katherine Hollander practices at 100 Bulldog Dr, Mandeville, LA 70471. The listed phone number is (985) 892-7112.

What is Katherine Hollander's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Katherine Hollander was last updated on August 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.