JOANNA MERCADO/ALVARADO
NPI 1811974496
Emergency Medicine - Emergency Medical Services in Carolina, PR
About Joanna Mercado/alvarado NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNA MERCADO/ALVARADO (NPI 1811974496) is an individual emergency medical services provider in Carolina, Puerto Rico, licensed in Puerto Rico (15353) and active in the NPI registry since December 2005. She 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)
Joanna Mercado/alvarado is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Joanna Mercado/alvarado reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carolina, PR 00984
- Reassigned Medicare billing, Puerto Rico enrollment
- 17 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 00987 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Joanna Mercado/alvarado's NPI number?
The NPI number for Joanna Mercado/alvarado is 1811974496. It was assigned to this individual provider in the NPPES registry on December 27, 2005.
Where is Joanna Mercado/alvarado located?
Joanna Mercado/alvarado practices at Upr Hospital # 3 Road 65th Infantry Ave., Carolina, PR 00987. The listed phone number is (787) 757-1800.
What is Joanna Mercado/alvarado's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Joanna Mercado/alvarado enrolled in Medicare?
Yes. Joanna Mercado/alvarado is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Joanna Mercado/alvarado's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joanna Mercado/alvarado reassigns Medicare benefits to Recinto De Ciencias Medicas (Carolina, 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 Joanna Mercado/alvarado'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 Joanna Mercado/alvarado was last updated on November 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.