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

Robert A. Johnson, MD

Individual provider Hematology & Oncology Physician · NPI 1083792659

Robert A. Johnson, MD is a Hematology & Oncology Physician in Martinez, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
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

200 Muir Rd
Martinez, CA 94553-4614
Phone: (925) 372-1000
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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 A34581 (CA)

Record details

NPI number1083792659
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1800 Harrison St Fl 7, Oakland, CA 94612-3429

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