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

Mathias Masem, MD

Organization Specialist · NPI 1457371643

Mathias Masem, MD is a Specialist in Oakland, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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Practice location Address checks out

80 Grand Ave Ste 600
Oakland, CA 94612
Phone: (510) 763-0709
Fax: (510) 763-8753
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence G34134 (CA)

Record details

NPI number1457371643
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mathias Masem — Sole Practioner · (510) 763-0709
NPI enumeratedJuly 20, 2006
Last updated in NPPESAugust 22, 2020
Mailing address80 Grand Ave Ste 600, Oakland, CA 94612-3744

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