One Medical Group, Inc.
One Medical Group, Inc. is a healthcare organization registered as Family Medicine Physician in Mountain View, CA, holding Type 2 (organization) NPI 1942965439 since 2021. The authorized official on file is Andrew Diamond, Chief Medical Officer.
✓ Active NPI ✓ Valid NPI checksum Organization subpart
| NPI | 1942965439 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | One Medical Group, Inc. |
| Parent organization | One Medical Group, Inc. |
| Practice address | 100 BAY VIEW DR, Mountain View, CA, 94043 |
| Phone | 4152910480 |
| Enumeration date | 2021-11-01 |
| Last updated in NPPES | 2021-11-01 |
Authorized official
| Name | Andrew Diamond |
|---|---|
| Title | Chief Medical Officer |
| Phone | 4156586791 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Secondary | — | — |
| 207Q00000X | Family Medicine Physician | Primary | — | — |
Copy-ready billing details
Provider: One Medical Group, Inc. NPI: 1942965439 Taxonomy: 207Q00000X (Family Medicine Physician) Address: 100 BAY VIEW DR, Mountain View, CA, 94043
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1609168012 | Kartik Shah | Individual | Internal Medicine Physician | Mountain View, CA |
| 1710328349 | Caitlin Fillmore | Individual | Mental Health Counselor | Mountain View, CA |
Verify this record
Cross-check NPI 1942965439 against the authoritative CMS record: view One Medical Group, Inc. on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is One Medical Group, Inc.?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-11-01.