Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Leslie Ann Warren, RN

Mental Health Counselor in Queensbury, NY · enumerated 2018.

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

National Provider Identifier

1861977704

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Registry record

Entity type Individual (Type 1)

Name Ms. Leslie Ann Warren

Credential RN

Sex Female

Practice address 24 Cedarwood Drive, Queensbury, NY, 12804

Phone (347) 277-5966

Enumeration date Sep 26, 2018

Last updated in NPPES Jul 31, 2025

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 011245 (NY) Primary

163W00000X Registered Nurse Nursing Service Providers · License 647745-1 (NY) Secondary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 specialty is Leslie Warren?

Leslie Warren is registered in NPPES with the primary taxonomy of Mental Health Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-31.