DR. ANDREW P MAYER MD
NPI 1609862416
Emergency Medicine in Marrero, LA
About Dr. Andrew P Mayer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREW P MAYER MD (NPI 1609862416) is an individual emergency medicine provider in Marrero, Louisiana, licensed in Louisiana (019097) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Andrew P Mayer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Andrew Mayer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Marrero, LA 70072
- Reassigned Medicare billing, Louisiana enrollment
- 291 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 70072 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
MARRERO, LA 70072
MARRERO, LA 70072
MARRERO, LA 70072
MARRERO, LA 70072
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 Andrew Mayer's NPI number?
The NPI number for Andrew Mayer is 1609862416. It was assigned to this individual provider in the NPPES registry on September 27, 2005.
Where is Andrew Mayer located?
Andrew Mayer practices at 1101 Medical Center Blvd Emergency Department, Marrero, LA 70072. The listed phone number is (504) 349-1533.
What is Andrew Mayer's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Andrew Mayer enrolled in Medicare?
Yes. Andrew Mayer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Andrew Mayer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Mayer reassigns Medicare benefits to New Orleans Physician Services Inc (Marrero, 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 Andrew Mayer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Mayer accept?
Health plans from HMO Louisiana list Andrew Mayer 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.
When was this NPI record last updated?
The NPPES record for Andrew Mayer was last updated on January 6, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dr. Andrew P Mayer, MD · NPI 1609862416
Emergency Medicine physician in Marrero, Louisiana. Individual provider, active in the CMS NPPES registry since September 27, 2005.
## Identity
- **NPI:** 1609862416 (Entity type: Individual)
- **Enumerated:** September 27, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 019097 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1101 MEDICAL CENTER BLVD, EMERGENCY DEPARTMENT, Marrero, LA 70072-3147
- **Phone:** (504) 349-1533 · **Fax:** (504) 349-1530
## 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:** New Orleans Physician Services Inc (NPI 1396169678, Marrero, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 6, 2010
- **Other identifiers:** Medicare UPIN B64855 (LA); Medicaid 1371777 (LA); Medicare ID-Type Unspecified 53792 (LA)
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Source: [NPI Profile](https://npiprofile.com/npi/1609862416) · Data from the CMS NPPES public registry.