Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carl Allen Thompson, D.O.

Emergency Medicine Physician in Ardmore, OK · enumerated 2007.

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

National Provider Identifier

1427256619

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Registry record

Entity type Individual (Type 1)

Name Dr. Carl Allen Thompson

Credential D.O.

Sex Male

Practice address 1011 14th Ave Nw, Ardmore, OK, 73401

Phone (580) 220-6658

Fax (580) 220-6673

Enumeration date Jul 10, 2007

Last updated in NPPES Jan 22, 2024

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 4563 (OK) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036.168288 (IL) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 2882-321 (WI) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 326461 (NY) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
200115280A	Medicaid	OK	-

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

Is NPI 1427256619 active?

Yes, as of the latest NPPES snapshot, NPI 1427256619 is active (record last updated 2024-01-22).

How do I verify Carl Thompson's NPI record?

Cross-check NPI 1427256619 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-22.