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

MS. Carmen Milagros Marrero, MD

Individual provider Family Medicine Physician · NPI 1992787048

MS. Carmen Milagros Marrero, MD is registered under Family Practice in San Juan, Puerto Rico. Graduated from University of Puerto Rico School of Medicine in 1987, 39 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Puerto Rico.

Years since qualifying
39
Trained at
University of Puerto Rico School of Medicine
Licensed in
PR
In the registry since
2005
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.

488 Carr 845 Urb Purple Tree
San Juan, PR 00926-4403 Not confirmed with CMS for 12 years — call before visiting
Phone: (787) 761-1945
Fax: (787) 761-1947

No coordinates on file. Search this address in Google Maps

Specialties & licences

Geriatric Medicine (Family Medicine) Physician (primary) Taxonomy 207QG0300X · Licence 9548 (PR)
Family Medicine Physician Taxonomy 207Q00000X · Licence 9548 (PR)

Record details

NPI number1992787048
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 15, 2005
Last updated in NPPESMarch 7, 2014

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesGERIATRIC MEDICINE
Medical schoolUNIVERSITY OF PUERTO RICO SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
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 patients35
Services billed 264 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

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.

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