Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Kathleen T Keenan, NP

Adult Health Nurse Practitioner in New York, NY · enumerated 2007 · practices at Memorial Sloan Kettering Cancer Center.

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

National Provider Identifier

1144378811

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Kathleen T Keenan

Credential NP

Sex Female

Practice address 300 E 66th St, 7th Floor, New York, NY, 10065

Phone (646) 888-5482

Enumeration date Jan 8, 2007

Last updated in NPPES Mar 5, 2013

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 30-303945 (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 1144378811 active?

Yes, as of the latest NPPES snapshot, NPI 1144378811 is active (record last updated 2013-03-05).

How do I verify Kathleen Keenan's NPI record?

Cross-check NPI 1144378811 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 2013-03-05.