NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mallory Marie Larson, LPN

Licensed Practical Nurse in Oswego, NY · enumerated 2013.

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

National Provider Identifier

1942645148

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Mallory Marie Larson
Credential LPN
Sex Female
Practice address 300 State Route 104, Suite 1, Oswego, NY, 13126
Phone (315) 342-0030
Fax (315) 216-6669
Enumeration date May 2, 2013
Last updated in NPPES Mar 31, 2014

Taxonomy & licenses

164W00000X Licensed Practical Nurse Nursing Service Providers · License 308264 (NY) Primary
LPN · Licensed Practical Nurse: A nurse providing basic care under the direction of RNs and physicians. About the LPN 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

How do I verify Mallory Larson's NPI record?
Cross-check NPI 1942645148 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1942645148 active?
Yes, as of the latest NPPES snapshot, NPI 1942645148 is active (record last updated 2014-03-31).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-31.