Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Cesar F Hernandez-Arroyo, MD

Individual provider Internal Medicine Physician · NPI 1528473733

Dr. Cesar F Hernandez-Arroyo, MD practises Nephrology in San Juan, Puerto Rico. Graduated from San Juan Bautista School of Medicine in 2011, 15 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Puerto Rico and Wisconsin.

Years since qualifying
15
Trained at
San Juan Bautista School of Medicine
Licensed in
PR, WI
In the registry since
2014
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address may be wrong

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

400 Ave Domenech Ste 607
San Juan, PR 00918-3746
Phone: (787) 250-0084

No coordinates on file. Search this address in Google Maps

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 19128 (PR)
Internal Medicine Physician Taxonomy 207R00000X · Licence 19128 (PR)
Nephrology Physician Taxonomy 207RN0300X · Licence 73735-20 (WI)

Record details

NPI number1528473733
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 25, 2014
Last updated in NPPESAugust 16, 2021
Certification dateAugust 16, 2021

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSAN JUAN BAUTISTA SCHOOL OF MEDICINE
Graduated 2011 (15 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 patients35
Services billed 218 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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 $2,400 37 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.

  • Auxilio Mutuo Hospital Hospital · San Juan, PR

Other providers in San Juan