Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Siobhan Megan Mccullough, MS,LCPC,NCC,BC-TMH

Professional Counselor in Cary, IL · enumerated 2011.

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

National Provider Identifier

1780988667

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Registry record

Entity type Individual (Type 1)

Name Mrs. Siobhan Megan Mccullough

Credential MS,LCPC,NCC,BC-TMH

Sex Female

Practice address 18 Saint Cronan Ct, Cary, IL, 60013

Phone (815) 242-5450

Fax (815) 331-2996

Enumeration date Jan 6, 2011

Last updated in NPPES Nov 22, 2024

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers · License 995-226 (WI) Secondary

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 180.009536 (IL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1780988667 active?

Yes, as of the latest NPPES snapshot, NPI 1780988667 is active (record last updated 2024-11-22).

How do I verify Siobhan Mccullough's NPI record?

Cross-check NPI 1780988667 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-22.