Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Willow Sleep Center

Q: What type of organization is Willow Sleep Center?

Willow Sleep Center is registered in NPPES as a Sleep Medicine (Psychiatry & Neurology) Physician (its primary provider taxonomy).

Sleep Medicine (Psychiatry & Neurology) Physician in Lawrenceville, NJ · enumerated 2008 · authorized official Michele Migliaccio, Manager.

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

National Provider Identifier

1689839706

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Registry record

Entity type Organization (Type 2)

Legal business name Willow Sleep Center

Practice address 136 Franklin Corner Road, Lawrenceville, NJ, 08690

Phone (609) 586-9050

Fax (609) 585-4902

Enumeration date Jul 29, 2008

Last updated in NPPES Jul 29, 2008

Taxonomy & classification

2084S0012X Sleep Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Michele Migliaccio

Title Manager

Phone (609) 586-9050

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 is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Willow Sleep Center?

Willow Sleep Center is registered in NPPES as a Sleep Medicine (Psychiatry & Neurology) Physician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-29.