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

Ms. Colleen Karen Penny, MS-LA-MFT

Marriage & Family Therapist in Waterbury, CT · enumerated 2020 · practices at The Cassidy Counseling Center,LLC.

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

National Provider Identifier

1598389579

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Registry record

Entity type Individual (Type 1)

Name Ms. Colleen Karen Penny

Credential MS-LA-MFT

Sex Female

Practice address Waterbury, CT, 06708

Phone (203) 757-9357

Enumeration date Jun 4, 2020

Last updated in NPPES Jun 4, 2020

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 2325 (CT) Primary

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

Where does Colleen Penny practice?

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

What is the NPI number for Colleen Penny?

The National Provider Identifier (NPI) for Colleen Penny is 1598389579, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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The Cassidy Counseling Center,LLC Marriage & Family Therapist · Waterbury, CT NPI 1285068882

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-04.