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Harriet Siegel Chertok, LMHC, NCC

Mental Health Counselor in Roslyn Heights, NY · enumerated 2013.

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

National Provider Identifier

1023354537

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Registry record

Entity type Individual (Type 1)
Name Harriet Siegel Chertok
Credential LMHC, NCC
Sex Female
Practice address Roslyn Heights, NY, 11577
Phone (516) 399-0477
Enumeration date Jan 2, 2013
Last updated in NPPES Jan 2, 2013

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers 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.

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Frequently asked questions

Where does Harriet Chertok practice?
The practice location on file with NPPES is in Roslyn Heights, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Harriet Chertok?
The National Provider Identifier (NPI) for Harriet Chertok is 1023354537, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-02.