MICHAEL S GREENBERG
NPI 1164537379
Internal Medicine in New Orleans, LA
About Michael S Greenberg NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL S GREENBERG (NPI 1164537379) is an individual internal medicine provider in New Orleans, Louisiana, licensed in Louisiana (321359) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Michael S Greenberg is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Michael Greenberg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Orleans, LA 70119
- 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
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 70119 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW ORLEANS, LA 70119
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 Michael Greenberg's NPI number?
The NPI number for Michael Greenberg is 1164537379. It was assigned to this individual provider in the NPPES registry on August 20, 2006.
Where is Michael Greenberg located?
Michael Greenberg practices at 4710 S Carrollton Ave, New Orleans, LA 70119. The listed phone number is (504) 454-9020.
What is Michael Greenberg's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Michael Greenberg enrolled in Medicare?
Yes. Michael Greenberg is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Michael Greenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Greenberg 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 Michael Greenberg'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 Michael Greenberg was last updated on March 18, 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.
# Michael S Greenberg · NPI 1164537379
Internal Medicine physician in New Orleans, Louisiana. Individual provider, active in the CMS NPPES registry since August 20, 2006.
## Identity
- **NPI:** 1164537379 (Entity type: Individual)
- **Enumerated:** August 20, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 321359 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 4710 S CARROLLTON AVE, New Orleans, LA 70119-6027
- **Phone:** (504) 454-9020
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Ochsner Clinic LLC (NPI 1427557677, New Orleans, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 18, 2020
- **Other identifiers:** Medicaid 255729100 (FL)
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Source: [NPI Profile](https://npiprofile.com/npi/1164537379) · Data from the CMS NPPES public registry.