1. Home
  2. Directory
  3. NPI Profile

NEFROLOGOS ASOCIADOS DEL OESTE
NPI 1861596496
Internal Medicine - Nephrology in Mayaguez, PR

Active since September 12, 2006
1050 LOS CORAZONES AVE, SUITE 102, MAYAGUEZ, PR 00680(787) 834-5934(787) 833-6640 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Nefrologos Asociados Del Oeste NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NEFROLOGOS ASOCIADOS DEL OESTE (NPI 1861596496) is a healthcare organization registered as a nephrology in Mayaguez, Puerto Rico and active in the NPI registry since September 2006. The organization lists Jorge L Weber, Medical Director, as its authorized official.

NPPES Registry Identity

NPI1861596496
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameNEFROLOGOS ASOCIADOS DEL OESTE
Location Address1050 LOS CORAZONES AVE, SUITE 102Mayaguez, PR 00680-7042
Mailing Address1050 Los Corazones Ave, Suite 102Mayaguez, PR 00680-7042 · (787) 834-5934 · Fax (787) 833-6640
Phone(787) 834-5934
Fax(787) 833-6640
Organization SubpartNo
Authorized OfficialJorge L WeberMedical Director · (787) 834-5334
Enumeration DateSeptember 12, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1861596496 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nefrologos Asociados Del Oeste is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Nefrologos Asociados Del Oeste, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (8)

Dionisio Acosta, MD
Nephrology
NPI 1659724615
1050 AVE LOS CORAZONES STE 102
Mayaguez, PR 00680
(787) 834-2185
✔ PECOS✔ Accepts Medicare
Efrain Flores De Hostos, MD
Nephrology
NPI 1083710164
1050 LOS CORAZONES AVE SUITE 102
Mayaguez, PR 00680
(787) 834-5334
✔ PECOS
Oliver Guerrero Dujarric, MD
Nephrology
NPI 1861598039
1050 LOS CORAZONES AVE SUITE 102
Mayaguez, PR 00680
(787) 834-5334
✔ PECOS✔ Accepts Medicare
Enrique Lefevre Ramos, MD
Nephrology
NPI 1588760763
1050 LOS CORAZONES AVE SUITE 102
Mayaguez, PR 00680
(787) 834-5334
✔ PECOS
Gerardo Medina Caban, MD
Internal Medicine
NPI 1003912288
1050 LOS CORAZONES AVE SUITE 102
Mayaguez, PR 00680
(787) 834-5334
✔ PECOS✔ Accepts Medicare
Francisco Reyes Vale, MD
Nephrology
NPI 1063518249
1050 LOS CORAZONES AVE SUITE 102
Mayaguez, PR 00680
(787) 834-5334
✔ PECOS✔ Accepts Medicare
Jan Rosaly Martinez, MD
Nephrology
NPI 1942794573
1050 AVE LOS CORAZONES STE 102
Mayaguez, PR 00680
(787) 834-5334
✔ PECOS✔ Accepts Medicare
Jorge Weber Acevedo, MD
Nephrology
NPI 1740386838
1050 LOS CORAZONES AVE STE 102
Mayaguez, PR 00680
(787) 834-5334
✔ PECOS✔ Accepts Medicare

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 Nefrologos Asociados Del Oeste's NPI number?

The NPI number for Nefrologos Asociados Del Oeste is 1861596496. It was assigned to this organization in the NPPES registry on September 12, 2006.

Where is Nefrologos Asociados Del Oeste located?

Nefrologos Asociados Del Oeste is located at 1050 Los Corazones Ave Suite 102, Mayaguez, PR 00680. The listed phone number is (787) 834-5934.

What is Nefrologos Asociados Del Oeste's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Nefrologos Asociados Del Oeste enrolled in Medicare?

Yes. Nefrologos Asociados Del Oeste is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Nefrologos Asociados Del Oeste?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 2 Medicare specialties reassign their Medicare billing to Nefrologos Asociados Del Oeste. A 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 the clinician's services. The largest specialties are Nephrology (7) and Internal Medicine (1). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Nefrologos Asociados Del Oeste was last updated on August 22, 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.