Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Kathryn A Niebuhr, LMFT LADC

Addiction (Substance Use Disorder) Counselor in Greenwich, CT · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1215082144

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Registry record

Entity type Individual (Type 1)

Name Mrs. Kathryn A Niebuhr

Credential LMFT LADC

Sex Female

Practice address 145 Weaver St, Greenwich, CT, 06831

Phone (203) 531-5138

Fax (203) 661-2389

Enumeration date Jan 23, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 000236 (CT) Primary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 000605 (CT) Secondary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Kathryn Niebuhr?

The National Provider Identifier (NPI) for Kathryn Niebuhr is 1215082144, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kathryn Niebuhr practice?

The practice location on file with NPPES is in Greenwich, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.