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

Marissa J Defreitas, MD

Individual provider Pediatrics Physician · NPI 1861635674

Marissa J Defreitas, MD practises Pediatric Medicine in Miami, Florida. Graduated from University of Chicago, Pritzker School of Medicine in 2009, 17 years ago. Practices with University of Miami, a 2,303-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
17
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
FL
In the registry since
2009
Specialties on file
2
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 checks out

1611 NW 12th Ave
Miami, FL 33136-1005
Phone: (305) 585-6726
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Nephrology Physician (primary) Taxonomy 2080P0210X · Licence ME123124 (FL)
Pediatrics Physician Taxonomy 208000000X · Licence ME123124 (FL)

Record details

NPI number1861635674
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 8, 2009
Last updated in NPPESFebruary 8, 2023
Certification dateFebruary 8, 2023

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice University Of Miami — 2303 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 patients29
Services billed 96 a service is one billed item, such as a visit, a test or a procedure

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.

Colleagues at University of Miami

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2303 clinicians in the practice; 12 are shown here.

Other providers in Miami