Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret H Lennon, APRN

School Clinical Nurse Specialist in Stamford, CT · enumerated 2011.

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

National Provider Identifier

1750669222

Verified

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Registry record

Entity type Individual (Type 1)

Name Margaret H Lennon

Credential APRN

Sex Female

Practice address 381 High Ridge Rd, Stamford, CT, 06905

Phone (203) 629-2822

Enumeration date Aug 1, 2011

Last updated in NPPES Nov 2, 2011

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R39973 (CT) Secondary

364SS0200X School Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 001863 (CT) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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 is the NPI number for Margaret Lennon?

The National Provider Identifier (NPI) for Margaret Lennon is 1750669222, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margaret Lennon practice?

The practice location on file with NPPES is in Stamford, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-02.