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Luis Angel Diaz Cruz, M. D.

NPI 1790133718ActiveIndividual· Internal Medicine, Nephrology· Toa Baja, PR

Internal Medicine, Nephrology (M. D.) in Toa Baja, Puerto Rico, licensed in PR, with an NPI issued in May 2016. Their prescriptions cost Medicare Part D more than their services did: $751,642 for 2,495 claims, against $7,043 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 9 companies reporting payments in 2025, $630.63 in all, mostly food and beverage. Lists Auxilio Mutuo Hospital and 1 other hospital as hospital affiliations.

Overview

NPI1790133718
StatusActive
Entity typeIndividual
CredentialM. D.
Sole proprietorNo
NPI issuedMay 31, 2016
Last updated in NPPESAug 29, 2022
Certified by providerAug 25, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Nephrology Primary207RN0300X022351PR

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Nephrology (PR)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients36
Services billed91 across 8 procedure codes
Paid by Medicare$7,043

Part D prescriptions in 2024

Prescriptions (claims)2,495 · 2,944 30-day fills
Patients490
Total drug cost$751,642
Generic share54% of claims

Medicare sources and data years

Education and affiliations

Graduation year2010
Medicare specialtyNephrology
Secondary specialtiesInternal Medicine

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$630.63 · 25 payments from 9 companies
  • 2024$872.19 · 33 payments from 9 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$630.63 · 25 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other nephrologists in Toa Baja

All nephrologists in Puerto Rico