Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Gustavo Luis Fernandez-Castro, MD

Individual provider Hematology & Oncology Physician · NPI 1134175318

Dr. Gustavo Luis Fernandez-Castro, MD is a Hematology & Oncology Physician in New York, New York. Licensed in Florida and New York. Registered with an NPI since 2006.

Licensed in
FL, NY
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

425 W 59th St Fl 9
New York, NY 10019-8022
Phone: (212) 523-5559
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 343588 (NY)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence ME76272 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence ME76272 (FL)

Record details

NPI number1134175318
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 26, 2006
Last updated in NPPESJuly 23, 2026
Certification dateJuly 23, 2026

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