NANCY SALLOUM HARRISON M.D.
NPI 1457763336
Internal Medicine - Rheumatology in Hattiesburg, MS
About Nancy Salloum Harrison M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANCY SALLOUM HARRISON M.D. (NPI 1457763336) is an individual rheumatology provider in Hattiesburg, Mississippi, licensed in Mississippi (25183) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS, is affiliated with Forrest General Hospital, and is a graduate of University Of Mississippi School Of Medicine (2014).
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
Nancy Salloum Harrison 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 Nancy Harrison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hattiesburg, MS 39402
- 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 15
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Forrest General Hospital
Acute Care Hospitals · Hattiesburg, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39402 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 7
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 Nancy Harrison's NPI number?
The NPI number for Nancy Harrison is 1457763336. It was assigned to this individual provider in the NPPES registry on May 27, 2014.
Where is Nancy Harrison located?
Nancy Harrison practices at 104 Millsaps Dr, Hattiesburg, MS 39402. The listed phone number is (601) 288-7500.
What is Nancy Harrison's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Nancy Harrison enrolled in Medicare?
Yes. Nancy Harrison 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 Nancy Harrison's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Harrison 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 Nancy Harrison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nancy Harrison accept?
Health plans from Cigna Healthcare, Molina Healthcare and UnitedHealthcare list Nancy Harrison 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 Nancy Harrison affiliated with any hospitals?
According to CMS data, Nancy Harrison is affiliated with Forrest General Hospital.
When was this NPI record last updated?
The NPPES record for Nancy Harrison was last updated on August 17, 2022. 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.