DR. JOHN JOSEPH VIOLA MD
NPI 1174551949
Neurological Surgery in Stuart, FL
About Dr. John Joseph Viola Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN JOSEPH VIOLA MD (NPI 1174551949) is an individual neurological surgery provider in Stuart, Florida, licensed in Florida (ME102413) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. John Joseph Viola Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Viola reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stuart, FL 34994
- Reassigned Medicare billing, Florida enrollment
- 602 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 34994 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STUART, FL 34994
STUART, FL 34994
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Viola's NPI number?
The NPI number for John Viola is 1174551949. It was assigned to this individual provider in the NPPES registry on June 29, 2006.
Where is John Viola located?
John Viola practices at 509 SE Riverside Dr Ste 203, Stuart, FL 34994. The listed phone number is (772) 288-5862.
What is John Viola's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is John Viola enrolled in Medicare?
Yes. John Viola is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Viola's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Viola reassigns Medicare benefits to Martin Memorial Medical Center Inc (Stuart, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Viola's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Viola was last updated on November 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.