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

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1639465461

Dr. Mariella Hillebrand, MD is registered under Physical Medicine and Rehabilitation in Bayamon, Puerto Rico. Graduated from Ponce School of Medicine in 2009, 17 years ago. Practices as a sole proprietor. Licensed in Puerto Rico and Texas.

Years since qualifying
17
Trained at
Ponce School of Medicine
Licensed in
PR, TX
In the registry since
2011
Specialties on file
4
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.

Calle Manuel F Rossy Esq Isabel Ii
Bayamon, PR 00960
Phone: (787) 995-1900

No coordinates on file. Search this address in Google Maps

Specialties & licences

Brain Injury Medicine (Physical Medicine & Rehabilitation) Physician (primary) Taxonomy 2081P0301X · Licence 18217 (PR)
Physical Medicine & Rehabilitation Physician Taxonomy 208100000X · Licence R4398 (TX)
Physical Medicine & Rehabilitation Physician Taxonomy 208100000X · Licence 18217 (PR)
Pediatric Rehabilitation Medicine Physician Taxonomy 2081P0010X · Licence 18217 (PR)

Record details

NPI number1639465461
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 20, 2011
Last updated in NPPESSeptember 23, 2026
Certification dateSeptember 23, 2026

Medicare enrollment

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

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Also practisesPEDIATRIC MEDICINE
Medical schoolPONCE SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Accepts Medicare assignment Not indicated
Practice locations3 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 patients61
Services billed 347 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Affiliated with 2 inpatient rehabilitation facilities, which CMS identifies by certification number only.

Other providers in Bayamon