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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ennis J. Duffis, M.D.

Neurology Physician in Springfield, MA · enumerated 2007.

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

National Provider Identifier

1174674295

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Registry record

Entity type Individual (Type 1)
Name Dr. Ennis J. Duffis
Credential M.D.
Sex Male
Practice address 3300 Main St, 3rd Floor, Suite C&D, Springfield, MA, 01107
Phone (413) 794-5600
Fax (413) 794-7297
Enumeration date Jan 16, 2007
Last updated in NPPES Mar 19, 2026

Taxonomy & licenses

2084V0102X Vascular Neurology Physician Allopathic & Osteopathic Physicians · License 239113 (MA) Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 239113 (MA) Primary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 342542 (NY) 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.

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Frequently asked questions

Is NPI 1174674295 active?
Yes, as of the latest NPPES snapshot, NPI 1174674295 is active (record last updated 2026-03-19).
How do I verify Ennis Duffis's NPI record?
Cross-check NPI 1174674295 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 2026-03-19.