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One Medical Group, Inc.

Family Medicine Physician in San Bruno, CA · enumerated 2019 · authorized official Andrew Diamond, President.

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

National Provider Identifier

1487213781

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Registry record

Entity type Organization (Type 2)
Legal business name One Medical Group, Inc.
Other name <Unavail>
Parent organization One Medical Group, Inc.
Practice address 1100 Grundy Ln, San Bruno, CA, 94066
Phone (650) 227-7890
Fax (650) 227-1107
Enumeration date Jun 10, 2019
Last updated in NPPES Jul 13, 2023

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Andrew Diamond
Title President
Phone (415) 658-6791

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

What type of organization is One Medical Group, Inc.?
One Medical Group, Inc. is registered in NPPES as a Family Medicine Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-13.