DR. ALEJANDRO A PORRATA NIEVA M.D.
NPI 1033112529
Pain Medicine - Interventional Pain Medicine in San Juan, PR
About Dr. Alejandro A Porrata Nieva M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEJANDRO A PORRATA NIEVA M.D. (NPI 1033112529) is an individual interventional pain medicine provider in San Juan, Puerto Rico, licensed in Puerto Rico (15828) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS, is affiliated with Doctor's Center De San Juan, and is a graduate of Other (1998).
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 and accepts Medicare assignment
Dr. Alejandro A Porrata Nieva M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Alejandro Porrata Nieva reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Juan, PR 00918
- Reassigned Medicare billing, Puerto Rico enrollment
- 5 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 5
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Doctor's Center De San Juan
Acute Care Hospitals · San Juan, PRPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 00907 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.
SAN JUAN, PR 00907
SAN JUAN, PR 00907
SAN JUAN, PR 00907
SAN JUAN, PR 00907
SAN JUAN, PR 00907
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 Alejandro Porrata Nieva's NPI number?
The NPI number for Alejandro Porrata Nieva is 1033112529. It was assigned to this individual provider in the NPPES registry on May 27, 2005.
Where is Alejandro Porrata Nieva located?
Alejandro Porrata Nieva practices at 29 Calle Washington Ste. 303, San Juan, PR 00907. The listed phone number is (787) 721-2250.
What is Alejandro Porrata Nieva's specialty?
The primary specialty registered for this NPI is Pain Medicine, specializing in Interventional Pain Medicine, with taxonomy code 208VP0014X.
Is Alejandro Porrata Nieva enrolled in Medicare?
Yes. Alejandro Porrata Nieva is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Alejandro Porrata Nieva's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alejandro Porrata Nieva reassigns Medicare benefits to Medicos Especializados De San Juan (San Juan, 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 Alejandro Porrata Nieva's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alejandro Porrata Nieva affiliated with any hospitals?
According to CMS data, Alejandro Porrata Nieva is affiliated with Doctor's Center De San Juan.
When was this NPI record last updated?
The NPPES record for Alejandro Porrata Nieva was last updated on March 17, 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.