GREGORY NEAL SOSSAMAN M.D.
NPI 1073582508
Pathology - Cytopathology in New Orleans, LA
About Gregory Neal Sossaman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY NEAL SOSSAMAN M.D. (NPI 1073582508) is an individual cytopathology provider in New Orleans, Louisiana, licensed in Louisiana (MD.023490) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gregory Neal Sossaman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gregory Sossaman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Orleans, LA 70121
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70121 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.
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
NEW ORLEANS, LA 70121
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 Gregory Sossaman's NPI number?
The NPI number for Gregory Sossaman is 1073582508. It was assigned to this individual provider in the NPPES registry on March 16, 2006.
Where is Gregory Sossaman located?
Gregory Sossaman practices at 1514 Jefferson Hwy, New Orleans, LA 70121. The listed phone number is (504) 842-4000.
What is Gregory Sossaman's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Cytopathology, with taxonomy code 207ZC0500X.
Is Gregory Sossaman enrolled in Medicare?
Yes. Gregory Sossaman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gregory Sossaman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Sossaman reassigns Medicare benefits to Ochsner Clinic LLC (New Orleans, LA). 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 Gregory Sossaman'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 Gregory Sossaman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Gregory Neal Sossaman, M.D. · NPI 1073582508
Cytopathology physician in New Orleans, Louisiana. Individual provider, active in the CMS NPPES registry since March 16, 2006.
## Identity
- **NPI:** 1073582508 (Entity type: Individual)
- **Enumerated:** March 16, 2006
- **Primary specialty:** Pathology - Cytopathology · taxonomy 207ZC0500X
- **State license:** MD.023490 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1514 JEFFERSON HWY, New Orleans, LA 70121
- **Phone:** (504) 842-4000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for durable medical equipment, power mobility devices
- **Bills Medicare through:** Ochsner Clinic LLC (NPI 1215136080, New Orleans, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1073582508) · Data from the CMS NPPES public registry.