Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark Allen, O.D.
Optometrist in Texarkana, TX · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1245239904
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Registry record
Entity type Individual (Type 1)
Name Mark Allen
Credential O.D.
Sex Male
Practice address 4401 Morris Lane, Texarkana, TX, 75503
Phone (903) 838-9063
Fax (903) 838-9074
Enumeration date Jul 15, 2005
Last updated in NPPES Sep 24, 2012
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1285681304 | Other | TX | GROUP NPI |
| 041984803 | Medicaid | TX | - |
| 132451722 | Medicaid | AR | - |
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.
Frequently asked questions
How do I verify Mark Allen's NPI record?
Cross-check NPI 1245239904 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1245239904 active?
Yes, as of the latest NPPES snapshot, NPI 1245239904 is active (record last updated 2012-09-24).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-24.