Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Antonio Luis Diaz Hernandez, MD

Individual provider Internal Medicine Physician · NPI 1003016775

Dr. Antonio Luis Diaz Hernandez, MD practises Nephrology in San Juan, Puerto Rico. Graduated from Ponce School of Medicine in 2005, 21 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Puerto Rico.

Years since qualifying
21
Trained at
Ponce School of Medicine
Licensed in
PR
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address may be wrong

The ZIP code does not match the city and state on this record. Call before visiting.

1492 Ave La Constitucion Ste 717 Edificio Centro Europa
San Juan, PR 00907-9570
Phone: (787) 723-5017

No coordinates on file. Search this address in Google Maps

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 17173 (PR)
Internal Medicine Physician Taxonomy 207R00000X · Licence 26095 (PR)

Record details

NPI number1003016775
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 20, 2007
Last updated in NPPESOctober 26, 2022
Certification dateOctober 20, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Medical schoolPONCE SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients49
Services billed 145 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $488 14 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Hospital Espanol Auxilio Mutuo San Pablo Hospital · Bayamon, PR
  • Hospital Pavia Santurce Hospital · San Juan, PR
  • FMC Santa Juanita Dialysis facility · Bayamon, PR

Other providers in San Juan