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

Dr. James Keene Brennan, MD

Individual provider Hematology (Internal Medicine) Physician · NPI 1659634145

Dr. James Keene Brennan, MD is a Hematology (Internal Medicine) Physician in Clearwater, Florida. Practices as a sole proprietor. Licensed in Florida.

Licensed in
FL
In the registry since
2012
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

743 Eldorado Ave
Clearwater, FL 33767-1421
Phone: (727) 443-7225
Fax: (727) 443-7225
Show map & directions

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

Specialties & licences

Hematology (Internal Medicine) Physician (primary) Taxonomy 207RH0000X · Licence ME 76349 (FL)

Record details

NPI number1659634145
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 19, 2012
Last updated in NPPESJune 19, 2012

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