VEIN INSTITUTE OF SOUTH MISSISSIPPI PLLC
NPI 1548928443
Surgery - Vascular Surgery in Hattiesburg, MS
About Vein Institute Of South Mississippi Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VEIN INSTITUTE OF SOUTH MISSISSIPPI PLLC (NPI 1548928443) is a healthcare organization registered as a vascular surgery in Hattiesburg, Mississippi and active in the NPI registry since December 2021. The organization lists John Keith Thompson, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Vein Institute Of South Mississippi Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by March 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Vein Institute Of South Mississippi PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Vein Institute Of South Mississippi PLLC's NPI number?
The NPI number for Vein Institute Of South Mississippi PLLC is 1548928443. It was assigned to this organization in the NPPES registry on December 8, 2021.
Where is Vein Institute Of South Mississippi PLLC located?
Vein Institute Of South Mississippi PLLC is located at 6169 U S Highway 98, Hattiesburg, MS 39402. The listed phone number is (601) 335-8368.
What is Vein Institute Of South Mississippi PLLC's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.
Is Vein Institute Of South Mississippi PLLC enrolled in Medicare?
Yes. Vein Institute Of South Mississippi PLLC is registered in the Medicare PECOS enrollment system.
When is Vein Institute Of South Mississippi PLLC's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Mississippi, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Vein Institute Of South Mississippi PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Vein Institute Of South Mississippi PLLC, in Nurse Practitioner and Vascular Surgery. A 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 the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Vein Institute Of South Mississippi PLLC was last updated on December 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Vein Institute Of South Mississippi Pllc · NPI 1548928443
Vascular Surgery organization in Hattiesburg, Mississippi. Organization record, active in the CMS NPPES registry since December 8, 2021.
## Identity
- **NPI:** 1548928443 (Entity type: Organization)
- **Enumerated:** December 8, 2021
- **Primary specialty:** Surgery - Vascular Surgery · taxonomy 2086S0129X
- **Organization subpart:** No
- **Authorized official:** John Thompson, OWNER
## Practice location
- **Address:** 6169 U S HIGHWAY 98, Hattiesburg, MS 39402-8631
- **Phone:** (601) 335-8368
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** March 31, 2027 (Non-DME Part B, Mississippi, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 2 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (1), Vascular Surgery (1); 1 practice at this address and 2 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 8, 2021
- **Other identifiers:** Other 800456806 (MS); Other 19031 (MS)
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Source: [NPI Profile](https://npiprofile.com/npi/1548928443) · Data from the CMS NPPES public registry.