Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Anne Marie Klassert, NP

Adult Health Nurse Practitioner in Stony Brook, NY · enumerated 2005.

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

National Provider Identifier

1467448985

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Registry record

Entity type Individual (Type 1)

Name Mrs. Anne Marie Klassert

Credential NP

Sex Female

Practice address University Hospital at Stony Brook, Hsc T-9 Rm 040, Stony Brook, NY, 11794

Phone (631) 444-1205

Fax (631) 444-7620

Enumeration date Sep 20, 2005

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F300922-1 (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

Other identifiers

Identifier	Type	State	Issuer
02322223	Medicaid	NY	-

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 1467448985 active?

Yes, as of the latest NPPES snapshot, NPI 1467448985 is active (record last updated 2026-07-13).

How do I verify Anne Klassert's NPI record?

Cross-check NPI 1467448985 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 2026-07-13.