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MARIA DEL PILAR FERNANDEZ MARTI, MD, LLC
NPI 1598209397
Internal Medicine - Nephrology in Caguas, PR

Active since December 13, 2016
10 CALLE ACOSTA, CAGUAS, PR 00725(787) 746-2858(787) 258-0303 Get Directions Write a Review

NPPES record last updated: December 13, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Maria Del Pilar Fernandez Marti, Md, Llc NPPES

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

MARIA DEL PILAR FERNANDEZ MARTI, MD, LLC (NPI 1598209397) is a healthcare organization registered as a nephrology in Caguas, Puerto Rico and active in the NPI registry since December 2016. The organization lists Maria Del Pilar Fernandez, President, as its authorized official.

NPPES Registry Identity

NPI1598209397
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameMARIA DEL PILAR FERNANDEZ MARTI, MD, LLC
Location Address10 CALLE ACOSTACaguas, PR 00725-2646
Mailing AddressPo Box 220Caguas, PR 00726-0220 · (787) 746-2858 · Fax (787) 258-0303
Phone(787) 746-2858
Fax(787) 258-0303
Organization SubpartNo
Authorized OfficialMaria Del Pilar FernandezPresident · (787) 746-2858
Enumeration DateDecember 13, 2016
✔ NPI 1598209397 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 · 18643
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.
10 CALLE ACOSTA, Caguas, PR 00725
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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)

Maria Del Pilar Fernandez Marti, Md, Llc 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 Maria Del Pilar Fernandez Marti, MD, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Maria Del Pilar Fernandez Marti, MD
Nephrology
NPI 1417220211
AVE PONCE DE LEON TORRE AUXILIO MUTUO SUITE 803
San Juan, PR 00917
(787) 998-3329
✔ 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 Maria Del Pilar Fernandez Marti, MD, LLC's NPI number?

The NPI number for Maria Del Pilar Fernandez Marti, MD, LLC is 1598209397. It was assigned to this organization in the NPPES registry on December 13, 2016.

Where is Maria Del Pilar Fernandez Marti, MD, LLC located?

Maria Del Pilar Fernandez Marti, MD, LLC is located at 10 Calle Acosta, Caguas, PR 00725. The listed phone number is (787) 746-2858.

What is Maria Del Pilar Fernandez Marti, MD, LLC's specialty?

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

Is Maria Del Pilar Fernandez Marti, MD, LLC enrolled in Medicare?

Yes. Maria Del Pilar Fernandez Marti, MD, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Maria Del Pilar Fernandez Marti, MD, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nephrology) reassigns their Medicare billing to Maria Del Pilar Fernandez Marti, MD, LLC. 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 Maria Del Pilar Fernandez Marti, MD, LLC was last updated on December 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.