Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Francis D Horrigan, MD

Gastroenterology Physician in Westfield, MA · enumerated 2006.

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

National Provider Identifier

1417923004

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Francis D Horrigan

Credential MD

Sex Male

Practice address 115 West Silver St, Westfield Medical Corporation, Westfield, MA, 01086

Phone (413) 562-3444

Fax (413) 572-5016

Enumeration date Feb 24, 2006

Last updated in NPPES Apr 30, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 38856 (MA) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 38856 (MA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
0112984	Medicaid	MA	-

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 Francis Horrigan's NPI record?

Cross-check NPI 1417923004 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1417923004 active?

Yes, as of the latest NPPES snapshot, NPI 1417923004 is active (record last updated 2008-04-30).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-30.