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Mainstreet Medical Practice

Family Medicine Physician in Half Moon Bay, CA · enumerated 2006 · authorized official Deborah Penrose, Doctor.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1326128158

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Registry record

Entity type Organization (Type 2)
Legal business name Mainstreet Medical Practice
Other name <Unavail>
Practice address 725 Main Street, Half Moon Bay, CA, 94019
Phone (650) 726-1200
Fax (650) 726-1235
Enumeration date Oct 16, 2006
Last updated in NPPES Sep 11, 2025

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A4678 (CA) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A62160 (CA) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G31635 (CA) Secondary

Authorized official

Name Deborah Penrose
Title Doctor
Phone (650) 726-1200

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where is Mainstreet Medical Practice located?
The practice location on file with NPPES is in Half Moon Bay, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-09-11. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.