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

Ms. Sandra Greenstein, LMHC

Mental Health Counselor in Round Ridge, NY · enumerated 2010 · practices at Careerlife Solutions, Inc..

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

National Provider Identifier

1023310463

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Registry record

Entity type Individual (Type 1)

Name Ms. Sandra Greenstein

Credential LMHC

Sex Female

Practice address Round Ridge, NY, 10576

Phone (646) 831-2613

Fax (866) 700-6071

Enumeration date Nov 17, 2010

Last updated in NPPES Apr 11, 2023

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 · License 002292-1 (NY) 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

Is NPI 1023310463 active?

Yes, as of the latest NPPES snapshot, NPI 1023310463 is active (record last updated 2023-04-11).

How do I verify Sandra Greenstein's NPI record?

Cross-check NPI 1023310463 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Careerlife Solutions, Inc. Mental Health Counselor · Pound Ridge, NY NPI 1194027532

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-11.