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Heidi H Siebert, Lmft, LLC

Marriage & Family Therapist in Norwalk, CT · enumerated 2010 · authorized official Heidi Siebert, Owner/Psychotherapist.

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

National Provider Identifier

1225330319

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Registry record

Entity type Organization (Type 2)
Legal business name Heidi H Siebert, Lmft, LLC
Practice address 5 Eversley Ave, 3rd Floor, Norwalk, CT, 06851
Phone (203) 829-4196
Enumeration date Nov 23, 2010
Last updated in NPPES Nov 23, 2010

Taxonomy & classification

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 1250 (CT) Primary

Authorized official

Name Heidi Siebert
Title Owner/Psychotherapist
Phone (203) 829-4196

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.

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Frequently asked questions

What type of organization is Heidi H Siebert, Lmft, LLC?
Heidi H Siebert, Lmft, LLC is registered in NPPES as a Marriage & Family Therapist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-23.