Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joan Cost Lester, PSY.D., L.P.C.

Q: What is the NPI number for Joan Lester?

The National Provider Identifier (NPI) for Joan Lester is 1669967600, a Type 1 (individual) record in the CMS NPPES registry.

Professional Counselor in Marlborough, CT · enumerated 2018.

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

National Provider Identifier

1669967600

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Registry record

Entity type Individual (Type 1)

Name Dr. Joan Cost Lester

Credential PSY.D., L.P.C.

Sex Female

Practice address 214 Jones Hollow Rd, Marlborough, CT, 06447

Phone (860) 295-9565

Enumeration date Jun 22, 2018

Last updated in NPPES Jun 22, 2018

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 003280 (CT) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

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 Joan Lester?

The National Provider Identifier (NPI) for Joan Lester is 1669967600, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joan Lester practice?

The practice location on file with NPPES is in Marlborough, 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 2018-06-22.