DR. JUSTIN DAVID WESTERVELT M.D.
NPI 1679748016
Internal Medicine - Nephrology in Hattiesburg, MS
About Dr. Justin David Westervelt M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JUSTIN DAVID WESTERVELT M.D. (NPI 1679748016) is an individual nephrology provider in Hattiesburg, Mississippi, licensed in Mississippi (23758) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS, is affiliated with South Central Reg Med Ctr, and is a graduate of Tulane University School Of Medicine (2006).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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. Justin David Westervelt M.d. 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 Reassignment
Medicare enrollment records show Justin Westervelt reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hattiesburg, MS 39401
- Reassigned Medicare billing, Mississippi enrollment
- 696 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 12
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
South Central Reg Med Ctr
Acute Care Hospitals · Laurel, MSForrest General Hospital
Acute Care Hospitals · Hattiesburg, MSMerit Health Wesley
Acute Care Hospitals · Hattiesburg, 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.
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 Justin Westervelt's NPI number?
The NPI number for Justin Westervelt is 1679748016. It was assigned to this individual provider in the NPPES registry on April 28, 2008.
Where is Justin Westervelt located?
Justin Westervelt practices at 415 S 28th Ave, Hattiesburg, MS 39401. The listed phone number is (601) 268-5700.
What is Justin Westervelt's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Justin Westervelt enrolled in Medicare?
Yes. Justin Westervelt 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 organization bills Medicare for Justin Westervelt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Westervelt reassigns Medicare benefits to Hattiesburg Clinic PA (Hattiesburg, MS). 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 Justin Westervelt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Justin Westervelt accept?
Health plans from Cigna Healthcare, Molina Healthcare and UnitedHealthcare list Justin Westervelt 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 Justin Westervelt affiliated with any hospitals?
According to CMS data, Justin Westervelt is affiliated with South Central Reg Med Ctr, Forrest General Hospital and Merit Health Wesley.
When was this NPI record last updated?
The NPPES record for Justin Westervelt was last updated on July 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.