Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David M Flannagan, MD

Diagnostic Radiology Physician in Syracuse, NY · enumerated 2005.

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

National Provider Identifier

1821098039

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Registry record

Entity type Individual (Type 1)

Name David M Flannagan

Credential MD

Sex Male

Practice address 736 Irving Ave, Syracuse, NY, 13210

Phone (315) 470-7551

Fax (315) 470-2719

Enumeration date Jul 29, 2005

Last updated in NPPES Jul 11, 2012

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 165989 (NY) Primary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License ME92743 (FL) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does David Flannagan practice?

The practice location on file with NPPES is in Syracuse, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for David Flannagan?

The National Provider Identifier (NPI) for David Flannagan is 1821098039, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-11.