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

Brian Joel Lewis, MD

Individual provider Hematology & Oncology Physician · NPI 1467530089

Brian Joel Lewis, MD is a Hematology & Oncology Physician in San Anselmo, 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

50 Mather Rd
San Anselmo, CA 94960-1047
Phone: (415) 454-2676
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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 G26437 (CA)

Record details

NPI number1467530089
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESAugust 7, 2007
Mailing address50 Mather Rd, San Anselmo, CA 94960-1047

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