DR. BILLY WAYNE JEFFERSON JR. DO
NPI 1407423809
Emergency Medicine in Hattiesburg, MS
About Dr. Billy Wayne Jefferson Jr. Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BILLY WAYNE JEFFERSON JR. DO (NPI 1407423809) is an individual emergency medicine provider in Hattiesburg, Mississippi, licensed in Mississippi (32525) and active in the NPI registry since June 2021. He is enrolled in Medicare PECOS, is affiliated with Christus Shreveport-bossier Health System, and maintains a secondary practice location in Shreveport.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Billy Wayne Jefferson Jr. Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
22Medicare enrollment records show Billy Jefferson reassigns Medicare billing to 22 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hattiesburg, MS 39401
- Reassigned Medicare billing, Mississippi enrollment
- 56 clinicians in this Medicare group
Hattiesburg, MS 39401
- Reassigned Medicare billing, Mississippi enrollment
- 110 clinicians in this Medicare group
Richton, MS 39476
- Reassigned Medicare billing, Mississippi enrollment
- 38 clinicians in this Medicare group
Columbia, MS 39429
- Reassigned Medicare billing, Mississippi enrollment
- 81 clinicians in this Medicare group
Columbia, MS 39429
- Reassigned Medicare billing, Mississippi enrollment
- 38 clinicians in this Medicare group
Poplarville, MS 39470
- Reassigned Medicare billing, Mississippi enrollment
- 36 clinicians in this Medicare group
Picayune, MS 39466
- Reassigned Medicare billing, Mississippi enrollment
- 78 clinicians in this Medicare group
Picayune, MS 39466
- Reassigned Medicare billing, Mississippi enrollment
- 50 clinicians in this Medicare group
Prentiss, MS 39474
- Reassigned Medicare billing, Mississippi enrollment
- 58 clinicians in this Medicare group
Prentiss, MS 39474
- Reassigned Medicare billing, Mississippi enrollment
- 58 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus Shreveport-Bossier Health System
Acute Care Hospitals · Shreveport, LAWillis Knighton Medical Center
Acute Care Hospitals · Shreveport, LAByrd Regional Hospital
Acute Care Hospitals · Leesville, LAForrest General Hospital
Acute Care Hospitals · Hattiesburg, MSMarion General Hospital
Acute Care Hospitals · Columbia, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39401 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HATTIESBURG, MS 39401
HATTIESBURG, MS 39401
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 Billy Jefferson's NPI number?
The NPI number for Billy Jefferson is 1407423809. It was assigned to this individual provider in the NPPES registry on June 5, 2021.
Where is Billy Jefferson located?
Billy Jefferson practices at 6051 U S Highway 49, Hattiesburg, MS 39401. The listed phone number is (601) 441-2975.
What is Billy Jefferson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Billy Jefferson enrolled in Medicare?
Yes. Billy Jefferson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Billy Jefferson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Billy Jefferson reassigns Medicare benefits to 22 organizations: Relias Clinical Decision Specialists Of Hattiesburg, LLC (Hattiesburg, MS), Relias Emergency Medicine Specialists Of Hattiesburg LLC (Hattiesburg, MS), Rh Emergency Medicine Of Perry County LLC (Richton, MS), Rh Emergency Medicine Of Marion General LLC (Columbia, MS), Rh Hospitalist Medicine Of Marion General LLC (Columbia, MS) and 17 more organizations, listed in the Medicare section above. Each 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 Billy Jefferson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Billy Jefferson accept?
Health plans from CHRISTUS Health Plan list Billy Jefferson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Billy Jefferson affiliated with any hospitals?
According to CMS data, Billy Jefferson is affiliated with Christus Shreveport-Bossier Health System, Willis Knighton Medical Center, Byrd Regional Hospital, Forrest General Hospital and Marion General Hospital.
When was this NPI record last updated?
The NPPES record for Billy Jefferson was last updated on July 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.
# Dr. Billy Wayne Jefferson Jr., DO · NPI 1407423809
Emergency Medicine physician in Hattiesburg, Mississippi. Individual provider, active in the CMS NPPES registry since June 5, 2021.
## Identity
- **NPI:** 1407423809 (Entity type: Individual)
- **Enumerated:** June 5, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 32525 (Mississippi)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 6051 U S HIGHWAY 49, Hattiesburg, MS 39401-7200
- **Phone:** (601) 441-2975
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 22 organizations under Medicare reassignment (form CMS-855R): Relias Clinical Decision Specialists Of Hattiesburg, LLC (NPI 1336867415, Hattiesburg, MS); Relias Emergency Medicine Specialists Of Hattiesburg LLC (NPI 1609409440, Hattiesburg, MS); Rh Emergency Medicine Of Perry County LLC (NPI 1740058650, Richton, MS); Rh Emergency Medicine Of Marion General LLC (NPI 1841064110, Columbia, MS); Rh Hospitalist Medicine Of Marion General LLC (NPI 1801660170, Columbia, MS); and 17 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** William Carey University College Of Osteopathic Medicine, class of 2021
## Record status
- **NPPES last updated:** July 29, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1407423809) · Data from the CMS NPPES public registry.