Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Choctaw Nation of Oklahoma

Primary Care Clinic/Center in Antlers, OK · enumerated 2024 · authorized official Todd Hallmark, Executive Officer.

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

National Provider Identifier

1770322422

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Choctaw Nation of Oklahoma

Practice address 508 N Hwy 271, Antlers, OK, 74523

Phone (918) 567-7000

Enumeration date May 22, 2024

Last updated in NPPES May 22, 2024

Taxonomy & classification

261QP0904X Federal Public Health Clinic/Center Ambulatory Health Care Facilities Secondary

261QP2300X Primary Care Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Todd Hallmark

Title Executive Officer

Phone (918) 567-7115

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 → Validate an NPI →

Frequently asked questions

Where is Choctaw Nation of Oklahoma located?

The practice location on file with NPPES is in Antlers, OK.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2024-05-22. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-22.