Marissa Defreitas is a Nephrology physician affiliated with University of Miami. OpenAlex indexes 89 publications with 1,729 citations (h-index 18); ClinicalTrials.gov lists 1 registered study matched to this name.
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
1611 NW 12th Ave
Miami, FL 331361005
Telephone
305-585-6726Provider last certified this registry record 8 Feb 2023.
Clinical trials
- BLOOM: Biological Legacy of Origin in Mother-Infant Dyads
Sponsor: University of Miami
Registered studies on ClinicalTrials.gov where the overall official or a site investigator name-matches this physician, confirmed against known institution/geography. Latest few shown; the full list is part of the full profile.
Industry payments
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- CALLIDITAS THERAPEUTICS US INC.Program year20241 payment
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Intrapatient tacrolimus variability is associated with medical nonadherence among pediatric kidney transplant recipients
Frontiers in Transplantation
2025 - Framework for Kidney Health Follow‐Up Among Neonates With Critical Cardiac Disease: A Report From the Neonatal Kidney Health Consensus Workshop
Journal of the American Heart Association
2025
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Bertram Kasiske, MD
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A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments, shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”