NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jillian Mclees, NP

Women's Health Nurse Practitioner in West Babylon, NY · enumerated 2025 · practices at Michael Polcino MD PC.

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

National Provider Identifier

1124994637

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Jillian Mclees
Credential NP
Sex Female
Practice address 141 Little East Neck Rd, West Babylon, NY, 11704
Enumeration date Oct 13, 2025
Last updated in NPPES Oct 13, 2025

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 421928 (NY) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

Is NPI 1124994637 active?
Yes, as of the latest NPPES snapshot, NPI 1124994637 is active (record last updated 2025-10-13).
How do I verify Jillian Mclees's NPI record?
Cross-check NPI 1124994637 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

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-13.