Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Darby Cotter

Marriage & Family Therapist in West Hartford, CT · enumerated 2014.

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

National Provider Identifier

1023413739

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Registry record

Entity type Individual (Type 1)

Name Darby Cotter

Sex Female

Practice address West Hartford, CT, 06110

Phone (844) 866-8336

Enumeration date Oct 24, 2014

Last updated in NPPES Aug 13, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 2815 (CT) Primary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFT.0002617 (CO) 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

Is NPI 1023413739 active?

Yes, as of the latest NPPES snapshot, NPI 1023413739 is active (record last updated 2024-08-13).

How do I verify Darby Cotter's NPI record?

Cross-check NPI 1023413739 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-13.