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

Gretchen Neymar Marrero Lozada

Individual provider Internal Medicine Physician · NPI 1891295812

Gretchen Neymar Marrero Lozada is a Nephrology in Miami, Florida. Graduated from University of Puerto Rico School of Medicine in 2020, 6 years ago. Practices with University of Miami, a 2,303-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Florida.

Years since qualifying
6
Trained at
University of Puerto Rico School of Medicine
Licensed in
FL
In the registry since
2018
Specialties on file
2
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Practice location Address checks out

1611 NW 12th Ave
Miami, FL 33136-1005
Phone: (305) 585-1111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5555 Ponce De Leon Blvd, Coral Gables, FL 33146-2513 — (305) 243-6251

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence ME173171 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence ME173171 (FL)

Record details

NPI number1891295812
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedFebruary 16, 2018
Last updated in NPPESMay 29, 2026
Certification dateMay 29, 2026

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Medical schoolUNIVERSITY OF PUERTO RICO SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice University Of Miami — 2303 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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