Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Joseph Viola, MD

Neurological Surgery Physician in Stuart, FL · enumerated 2006.

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

National Provider Identifier

1174551949

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Registry record

Entity type Individual (Type 1)

Name Dr. John Joseph Viola

Credential MD

Sex Male

Practice address 509 Se Riverside Dr, Ste 203, Stuart, FL, 34994

Phone (772) 288-5862

Fax (772) 288-5874

Enumeration date Jun 29, 2006

Last updated in NPPES Nov 12, 2014

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 38706 (CO) Secondary

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License ME102413 (FL) 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
000464400	Medicaid	FL	-

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

Is NPI 1174551949 active?

Yes, as of the latest NPPES snapshot, NPI 1174551949 is active (record last updated 2014-11-12).

How do I verify John Viola's NPI record?

Cross-check NPI 1174551949 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 2014-11-12.