NPI Portal NPI Lookup & Verification

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

Kathleen Marty Yu, CRNA

Certified Registered Nurse Anesthetist in Suffern, NY · enumerated 2014.

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

National Provider Identifier

1891118709

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Registry record

Entity type Individual (Type 1)
Name Kathleen Marty Yu
Credential CRNA
Sex Female
Practice address Suffern, NY, 10901
Fax (845) 368-5327
Enumeration date Jan 28, 2014
Last updated in NPPES Aug 9, 2022

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 58294-1 (NY) Secondary
367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 582941 (NY) Primary
CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA 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.

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Frequently asked questions

Is NPI 1891118709 active?
Yes, as of the latest NPPES snapshot, NPI 1891118709 is active (record last updated 2022-08-09).
How do I verify Kathleen Marty Yu's NPI record?
Cross-check NPI 1891118709 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-09.