Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Greisha Marie Gonzalez Santiago, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1275047052

Greisha Marie Gonzalez Santiago, MD practises Internal Medicine in Ponce, Puerto Rico. Qualified in 2016, 10 years ago. Practices with Hospital Menonita De Cayey, a 56-clinician group and accepts Medicare assignment. Licensed in Puerto Rico.

Years since qualifying
10
Licensed in
PR
In the registry since
2017
Specialties on file
2
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.

305 Calle Beato Francisco Palau
Ponce, PR 00728-1908
Phone: (787) 421-2747

No coordinates on file. Search this address in Google Maps

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 22239 (PR)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 22239 (PR)

Record details

NPI number1275047052
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 1, 2017
Last updated in NPPESJuly 13, 2026
Certification dateJuly 13, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Hospital Menonita De Cayey — 56 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 $1,669 62 payments · a meal or drink at a meeting or visit, not a fee
Education $180 2 payments · educational material or training, 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. Those with a page here are linked.

Colleagues at Hospital Menonita De Cayey

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 56 clinicians in the practice; 12 are shown here.

Other providers in Ponce