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

Gideon Michael Blumenthal, MD

Individual provider Hematology & Oncology Physician · NPI 1427242635

Gideon Michael Blumenthal, MD is a Hematology & Oncology Physician in Bethesda, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2007
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

8901 Wisconsin Ave National Navy Medical Ctr Bldg 8 Rm 4152
Bethesda, MD 20889-5600
Phone: (301) 435-5868
Show map & directions

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

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 937448 (MD)

Record details

NPI number1427242635
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 30, 2007
Last updated in NPPESJune 27, 2008

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