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

Fred S Marcus, MD a Professional Corporation

Organization Internal Medicine Physician · NPI 1669518189

Fred S Marcus, MD a Professional Corporation is an Internal Medicine Physician in Redwood City, California. Registered with an NPI since 2007.

In the registry since
2007
Specialties on file
2

Practice location Address checks out

2940 Whipple Ave Ste B
Redwood City, CA 94062-2857
Phone: (650) 216-8300
Fax: (650) 216-8400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X
Medical Oncology Physician Taxonomy 207RX0202X

Record details

NPI number1669518189
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Fred Marcus — Owner · (650) 216-8300
NPI enumeratedJanuary 30, 2007
Last updated in NPPESJuly 2, 2008
Mailing address2940 Whipple Ave, Suite B, Redwood City, CA 94062-2857

Other providers in Redwood City