Alliance Primary Care

Alliance Primary Care is a healthcare organization registered as Internal Medicine Physician in Mason, OH, holding Type 2 (organization) NPI 1821260944 since 2008. The authorized official on file is James Larson, Director of Patient Accounting.

✓ Active NPI ✓ Valid NPI checksum

NPI	1821260944
Entity type	Organization (Type 2)
Legal business name	Alliance Primary Care
Practice address	9311 S MASON MONTGOMERY RD, SUITE 111, Mason, OH, 45040
Phone	5135846999
Fax	5135846998
Enumeration date	2008-03-28
Last updated in NPPES	2008-03-28

Authorized official

Name	James Larson
Title	Director of Patient Accounting
Phone	5135859336

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
207R00000X	Internal Medicine Physician	Primary	—	—

Other identifiers

Identifier	Type	State	Issuer
2141355	Medicaid	OH	—

Copy-ready billing details

Provider: Alliance Primary Care
NPI: 1821260944
Taxonomy: 207R00000X (Internal Medicine Physician)
Address: 9311 S MASON MONTGOMERY RD, SUITE 111, Mason, OH, 45040

Providers at this address

NPI	Name	Type	Specialty	Location
1740452424	Alliance Primary Care	Organization	Family Medicine Physician	Mason, OH

Verify this record

Cross-check NPI 1821260944 against the authoritative CMS record: view Alliance Primary Care 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

Where is Alliance Primary Care located?

The practice location on file with NPPES is in Mason, OH.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-03-28. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-03-28.