JLN NEPHROLOGY
NPI 1558594010
Internal Medicine - Nephrology in San Juan, PR

Q: What is Jln Nephrology's NPI number?

The NPI number for Jln Nephrology is 1558594010. It was assigned to this organization in the NPPES registry on September 1, 2009.

Q: What is Jln Nephrology's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Jln Nephrology was last updated on September 1, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.

Active since September 01, 2009

814 PONCE DE LEON AVE, SUITE 814 TORRE MEDICA AUXILIO MUTUO, SAN JUAN, PR 00917(787) 764-8520 Get Directions Write a Review

NPPES record last updated: September 1, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Jln Nephrology NPPES

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

JLN NEPHROLOGY (NPI 1558594010) is a healthcare organization registered as a nephrology in San Juan, Puerto Rico and active in the NPI registry since September 2009. The organization lists Jose Luis Nieves-rivera, President, as its authorized official.

NPPES Registry Identity

NPI1558594010

Entity TypeOrganization

Primary Taxonomy207RN0300X

Legal Business NameJLN NEPHROLOGY

Location Address814 PONCE DE LEON AVE, SUITE 814 TORRE MEDICA AUXILIO MUTUOSan Juan, PR 00917

Mailing Address89 De Diego Ave Pmb 411, Suite 105San Juan, PR 00927-6346 · (787) 315-3134

Phone(787) 764-8520

Organization SubpartNo

Authorized OfficialJose Luis Nieves-riveraPresident · (787) 315-3134

Enumeration DateSeptember 1, 2009

✔ NPI 1558594010 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in PR · 16014

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)

Jln Nephrology is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Jln Nephrology, which bills Medicare for the services this clinician delivers.

Clinician (1)

Jose Nieves Rivera, MD

Nephrology

NPI 1033138607

735 PONCE DE LEON AVE. TORRE MEDICA AUXILIO MUTUO SUITE 615
San Juan, PR 00917

(787) 765-3300

✔ 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 Jln Nephrology's NPI number?

The NPI number for Jln Nephrology is 1558594010. It was assigned to this organization in the NPPES registry on September 1, 2009.

Where is Jln Nephrology located?

Jln Nephrology is located at 814 Ponce De Leon Ave Suite 814 Torre Medica Auxilio Mutuo, San Juan, PR 00917. The listed phone number is (787) 764-8520.

What is Jln Nephrology's specialty?

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

Is Jln Nephrology enrolled in Medicare?

Yes. Jln Nephrology is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Jln Nephrology?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nephrology) reassigns their Medicare billing to Jln Nephrology. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Jln Nephrology was last updated on September 1, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.