MARGARET MARTINEZ RN
NPI 1346104460
Nurse Practitioner - Neonatal in Mobile, AL
About Margaret Martinez Rn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET MARTINEZ RN (NPI 1346104460) is an individual neonatal provider in Mobile, Alabama, licensed in Alabama (1-134436) and active in the NPI registry since December 2025. She is enrolled in Medicare PECOS, maintains a secondary practice location in Pensacola, and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Margaret Martinez Rn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Margaret Martinez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mobile, AL 36604
- Reassigned Medicare billing, Alabama enrollment
- 857 clinicians in this Medicare group
Jacksonville, FL 32207
- Reassigned Medicare billing, Florida enrollment
- 703 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 36604 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.
MOBILE, AL 36604
MOBILE, AL 36604
MOBILE, AL 36604
MOBILE, AL 36604
MOBILE, AL 36604
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 Margaret Martinez's NPI number?
The NPI number for Margaret Martinez is 1346104460. It was assigned to this individual provider in the NPPES registry on December 12, 2025.
Where is Margaret Martinez located?
Margaret Martinez practices at 1700 Center St, Mobile, AL 36604. The listed phone number is (251) 415-1546.
What is Margaret Martinez's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Neonatal, with taxonomy code 363LN0000X.
Is Margaret Martinez enrolled in Medicare?
Yes. Margaret Martinez is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Margaret Martinez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Martinez reassigns Medicare benefits to 2 organizations: Usa Health Physician Billing Services LLC (Mobile, AL) and The Nemours Foundation (Jacksonville, FL). Each 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 Margaret Martinez'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 Margaret Martinez was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Margaret Martinez, RN · NPI 1346104460
Neonatal physician in Mobile, Alabama. Individual provider, active in the CMS NPPES registry since December 12, 2025.
## Identity
- **NPI:** 1346104460 (Entity type: Individual)
- **Enumerated:** December 12, 2025
- **Primary specialty:** Nurse Practitioner - Neonatal · taxonomy 363LN0000X
- **State license:** 1-134436 (Alabama)
- **Sole proprietor:** No
## Practice location
- **Address:** 1700 CENTER ST, Mobile, AL 36604-3301
- **Phone:** (251) 415-1546
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Usa Health Physician Billing Services LLC (NPI 1013574722, Mobile, AL); The Nemours Foundation (NPI 1265585806, Jacksonville, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** September 1, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1346104460) · Data from the CMS NPPES public registry.