Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Gagnon Oncology, LLC

Radiation Oncology Physician in Frederick, MD · enumerated 2012 · authorized official Lynda Losecco, Administrator.

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

National Provider Identifier

1376814293

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Registry record

Entity type Organization (Type 2)

Legal business name Gagnon Oncology, LLC

Parent organization Gagnon Oncology, LLC

Practice address 1562 Opossumtown Pike, Frederick, MD, 21702

Phone (240) 566-4500

Fax (301) 694-5554

Enumeration date Jan 24, 2012

Last updated in NPPES Jan 14, 2025

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License D0039954 (MD) Primary

Authorized official

Name Lynda Losecco

Title Administrator

Phone (607) 324-2340

Other identifiers

Identifier	Type	State	Issuer
758511000	Medicaid	MD	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-01-14. Verify at npiregistry.cms.hhs.gov.

Where is Gagnon Oncology, LLC located?

The practice location on file with NPPES is in Frederick, MD.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-14.