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

Dr. Nivia Esther Cruz-Ortiz, MD

Individual provider Nephrology Physician · NPI 1447363130

Dr. Nivia Esther Cruz-Ortiz, MD practises Nephrology in San Juan, Puerto Rico. Graduated from University of Puerto Rico School of Medicine in 1974, 52 years ago. Practices with Hospital Espanol Auxilio Mutuo De Puerto Rico, Inc, a 54-clinician group and accepts Medicare assignment. Licensed in Puerto Rico.

Years since qualifying
52
Trained at
University of Puerto Rico School of Medicine
Licensed in
PR
In the registry since
2006
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.

Cond Torre De Auxlio Mutuo Ofic 712 735 Ponce De Leon
San Juan, PR 00917 Not confirmed with CMS for 15 years — call before visiting
Phone: (787) 773-8040
Fax: (787) 773-8041

No coordinates on file. Search this address in Google Maps

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 4705 (PR)

Record details

NPI number1447363130
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 16, 2006
Last updated in NPPESOctober 21, 2010

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolUNIVERSITY OF PUERTO RICO SCHOOL OF MEDICINE
Graduated 1974 (52 years in practice)
Group practice Hospital Espanol Auxilio Mutuo De Puerto Rico, Inc. — 54 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients52
Services billed 172 a service is one billed item, such as a visit, a test or a procedure
Average patient age64

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 $317 4 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

Colleagues at Hospital Espanol Auxilio Mutuo De Puerto Rico, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 54 clinicians in the practice; 12 are shown here.

Other providers in San Juan