NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Margaret Kathleen Okeeffe, NPP

Psychiatric/Mental Health Nurse Practitioner in Yonkers, NY · enumerated 2006 · practices at Westchester Lhcsa Management LLC.

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

National Provider Identifier

1235292947

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Margaret Kathleen Okeeffe
Credential NPP
Sex Female
Practice address Yonkers, NY, 10701
Phone (718) 232-1492
Fax (718) 232-4505
Enumeration date Dec 18, 2006
Last updated in NPPES Mar 9, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F400815 (NY) 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 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.
What specialty is Margaret Okeeffe?
Margaret Okeeffe is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-09.