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

Dr. John J McCarthy, MD

Individual provider Hematology & Oncology Physician · NPI 1275578486

Dr. John J McCarthy, MD is a Hematology & Oncology Physician in Houston, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
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

6550 Fannin St Ste 1101
Houston, TX 77030-2717
Phone: (713) 441-0006
Fax: (713) 790-2727
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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 E6501 (TX)

Record details

NPI number1275578486
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 19, 2006
Last updated in NPPESFebruary 19, 2013
Mailing address6550 Fannin St, Suite 1101, Houston, TX 77030-2717

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