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

Michael Mainardi MD Inc

Organization Gastroenterology Physician · NPI 1780801001

Michael Mainardi MD Inc is a Gastroenterology Physician in San Mateo, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

50 S San Mateo Dr Ste 280
San Mateo, CA 94401-3857
Phone: (650) 685-6105
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G19146 (CA)

Record details

NPI number1780801001
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Michael Mainardi — President · (650) 340-9977
NPI enumeratedApril 19, 2007
Last updated in NPPESJuly 13, 2012
Mailing address50 S San Mateo Dr, Suite 280, San Mateo, CA 94401-3857

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