EFRAIN C. MARRERO ALVIRA MD
NPI 1447866884
General Practice in Luquillo, PR
About Efrain C. Marrero Alvira Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EFRAIN C. MARRERO ALVIRA MD (NPI 1447866884) is an individual general practice provider in Luquillo, Puerto Rico, licensed in Puerto Rico (21994) and active in the NPI registry since September 2020. 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)
Efrain C. Marrero Alvira Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Efrain Marrero Alvira reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Luquillo, PR 00773
- Reassigned Medicare billing, Puerto Rico enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Efrain Marrero Alvira's NPI number?
The NPI number for Efrain Marrero Alvira is 1447866884. It was assigned to this individual provider in the NPPES registry on September 21, 2020.
Where is Efrain Marrero Alvira located?
Efrain Marrero Alvira practices at Urb Colinas De Luquillo, Calle 4 - Casa 74, Luquillo, PR 00773. The listed phone number is (787) 955-9181.
What is Efrain Marrero Alvira's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Efrain Marrero Alvira enrolled in Medicare?
Yes. Efrain Marrero Alvira is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Efrain Marrero Alvira's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Efrain Marrero Alvira reassigns Medicare benefits to Dr Marrero Medical Services LLC (Luquillo, PR). 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 Efrain Marrero Alvira'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 Efrain Marrero Alvira was last updated on November 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Efrain C. Marrero Alvira, MD · NPI 1447866884
General Practice physician in Luquillo, Puerto Rico. Individual provider, active in the CMS NPPES registry since September 21, 2020.
## Identity
- **NPI:** 1447866884 (Entity type: Individual)
- **Enumerated:** September 21, 2020
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** 21994 (Puerto Rico)
- **Sole proprietor:** Yes
## Practice location
- **Address:** URB COLINAS DE LUQUILLO, CALLE 4 - CASA 74, Luquillo, PR 00773
- **Phone:** (787) 955-9181
## 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:** Dr Marrero Medical Services LLC (NPI 1912740010, Luquillo, PR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 9, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1447866884) · Data from the CMS NPPES public registry.